{"id":27167,"date":"2022-08-04T22:59:12","date_gmt":"2022-08-05T06:59:12","guid":{"rendered":"https:\/\/apacsafety.com\/?p=27167"},"modified":"2025-06-17T11:00:36","modified_gmt":"2025-06-17T03:00:36","slug":"difference-between-q235-and-q345","status":"publish","type":"post","link":"https:\/\/apacsafety.com\/fi\/difference-between-q235-and-q345\/","title":{"rendered":"Mit\u00e4 eroa on Q235 ja Q345 Steelin v\u00e4lill\u00e4 ja kumpaa minun pit\u00e4isi k\u00e4ytt\u00e4\u00e4 projekteihini?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"27167\" class=\"elementor elementor-27167\" data-elementor-settings=\"{&quot;ha_cmc_init_switcher&quot;:&quot;no&quot;}\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-01ad8be e-con-full e-flex elementor-repeater-item-default_padding elementor-repeater-item-none elementor-repeater-item-none_hover e-con e-parent\" data-id=\"01ad8be\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ang_container_spacing_size&quot;:&quot;default_padding&quot;,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t<div class=\"elementor-element elementor-element-6532e28 e-con-full e-flex elementor-repeater-item-default_padding elementor-repeater-item-none elementor-repeater-item-none_hover e-con e-child\" data-id=\"6532e28\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ang_container_spacing_size&quot;:&quot;default_padding&quot;,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1ac0f4a elementor-widget-mobile__width-initial elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-heading\" data-id=\"1ac0f4a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Johdanto<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a2857cd elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-text-editor\" data-id=\"a2857cd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Ter\u00e4s on yleinen rakentamisessa k\u00e4ytetty materiaali, ja k\u00e4ytett\u00e4viss\u00e4 on erilaisia ter\u00e4slajeja k\u00e4ytt\u00f6tarkoituksen mukaan. Kaksi yleist\u00e4 ter\u00e4slaatua ovat Q235 ja Q345. Joten mit\u00e4 eroa n\u00e4iden kahden luokan v\u00e4lill\u00e4 on? Ja kumpi sinun pit\u00e4isi valita projektiisi?<\/p><p>Lue lis\u00e4\u00e4 saadaksesi selville.<\/p><p><span style=\"color: #000000;\"><strong>P\u00e4ivityshuomautus:<\/strong> <\/span><\/p><p>Kiinan kansallisen standardin \u201cLow-Alloy High-Strength Structural Steel\u201d GB\/T1591-2018 mukaan ter\u00e4slaatu Q345 on korvattu 1.2.2019 alkaen Q355:ll\u00e4, joka vastaa EU-standardin S355 ter\u00e4slaatua.<\/p><p>Seuraavassa tekstiss\u00e4 k\u00e4ytet\u00e4\u00e4n Q355:t\u00e4 Q345:n sijaan.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-16c6596 elementor-widget-mobile__width-initial elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-heading\" data-id=\"16c6596\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Mit\u00e4 ovat Q235 ja Q355 ter\u00e4s?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c19023e e-con-full e-flex elementor-repeater-item-default_padding elementor-repeater-item-none elementor-repeater-item-none_hover e-con e-child\" data-id=\"c19023e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ang_container_spacing_size&quot;:&quot;default_padding&quot;,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6014723 elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-text-editor\" data-id=\"6014723\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Ensinn\u00e4kin ter\u00e4s on er\u00e4\u00e4nlainen metalliseos, joka koostuu p\u00e4\u00e4asiassa raudasta ja hiilest\u00e4. Sill\u00e4 on monia k\u00e4ytt\u00f6tarkoituksia maailmassa autoista rakennuksiin. Ter\u00e4s m\u00e4\u00e4ritell\u00e4\u00e4n sen lujuuden ja kovuuden perusteella, jotka voivat vaihdella sen sis\u00e4lt\u00e4mien muiden alkuaineiden koostumuksesta riippuen.<\/p><p>Yleisimm\u00e4t ter\u00e4styypit luokitellaan hiilipitoisuuden mukaan:<\/p><p>Hiiliter\u00e4s (0,03% \u2013 1,7% hiili)<\/p><p>\u2013 V\u00e4h\u00e4hiilinen ter\u00e4s (alle 0,31 TP3T-hiilt\u00e4)<\/p><p>\u2013 Keskihiiliter\u00e4s (0,3% \u2013 0,6% hiili)<\/p><p>\u2013 Korkeahiilinen ter\u00e4s (yli 0,6% - 1%)<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-85d27e2 external_elementor-repeater-item-none_external elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-image\" data-id=\"85d27e2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"799\" height=\"598\" src=\"https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/Steel-345.png\" class=\"attachment-large size-large wp-image-28581\" alt=\"Steel 345\" srcset=\"https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/Steel-345.png 799w, https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/Steel-345-300x225.png 300w, https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/Steel-345-768x575.png 768w\" sizes=\"(max-width: 799px) 100vw, 799px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-67fb69d e-con-full e-flex elementor-repeater-item-default_padding elementor-repeater-item-none elementor-repeater-item-none_hover e-con e-child\" data-id=\"67fb69d\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ang_container_spacing_size&quot;:&quot;default_padding&quot;,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2010817 elementor-widget__width-initial elementor-widget-tablet__width-initial external_elementor-repeater-item-none_external elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-image\" data-id=\"2010817\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"625\" height=\"416\" src=\"https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/steel-raw-material.png\" class=\"attachment-large size-large wp-image-27171\" alt=\"steel raw material\" srcset=\"https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/steel-raw-material.png 625w, https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/steel-raw-material-300x200.png 300w\" sizes=\"(max-width: 625px) 100vw, 625px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-98c4d05 elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-text-editor\" data-id=\"98c4d05\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Q235<\/li><\/ul><p>Q235 on kiinalainen ter\u00e4sseos, joka sis\u00e4lt\u00e4\u00e4 hiilt\u00e4, piit\u00e4, mangaania ja pieni\u00e4 m\u00e4\u00e4ri\u00e4 muita alkuaineita. Sill\u00e4 on suhteellisen alhainen vetolujuus ja sit\u00e4 k\u00e4ytet\u00e4\u00e4n rakennussovelluksissa, joissa sen lujuuden ei vaadita olevan erityisen korkea.<\/p><ul><li>Q355<\/li><\/ul><p>Q355 Steel on niukkaseosteisen ter\u00e4ksen tyyppi, jota k\u00e4ytet\u00e4\u00e4n siltojen, rakennusten ja muiden rakenteiden valmistukseen. Sen my\u00f6t\u00f6lujuus on 355 MPa ja vetolujuus 470-660 MPa.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f30308b elementor-widget-mobile__width-initial elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-heading\" data-id=\"f30308b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Q235 ja Q355 ter\u00e4ksen ominaisuudet<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-11d35c8 e-con-full e-flex elementor-repeater-item-default_padding elementor-repeater-item-none elementor-repeater-item-none_hover e-con e-child\" data-id=\"11d35c8\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ang_container_spacing_size&quot;:&quot;default_padding&quot;,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-30d9575 elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-text-editor\" data-id=\"30d9575\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Q235-ter\u00e4ksen ominaisuudet:<\/li><\/ul><ol><li style=\"list-style-type: none;\"><ol><li>Sill\u00e4 on hyv\u00e4 plastisuus ja sitkeys;<\/li><li>Hyv\u00e4 hitsattavuus ja kylm\u00e4ty\u00f6stett\u00e4vyys;<\/li><li>Kohtalainen korroosionkest\u00e4vyys;<\/li><li>Sill\u00e4 on tietty kulutuskest\u00e4vyys;<\/li><li>Alhainen kylm\u00e4karkaistuvuus, helposti hitsattava halkeilu. Q355-ter\u00e4s on niukkaseosteinen korkealujuus rakenneter\u00e4s, jolla on hyv\u00e4t mekaaniset ominaisuudet, lujuus matalassa l\u00e4mp\u00f6tilassa, hyv\u00e4 hitsattavuus, kohtalainen kylm\u00e4taivutusominaisuus ja kohtalainen sitkeys.<\/li><\/ol><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8e1e01d elementor-widget__width-initial elementor-widget-tablet__width-initial external_elementor-repeater-item-none_external elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-image\" data-id=\"8e1e01d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"798\" height=\"598\" src=\"https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/steel-welding.png\" class=\"attachment-large size-large wp-image-28585\" alt=\"steel welding\" srcset=\"https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/steel-welding.png 798w, https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/steel-welding-300x225.png 300w, https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/steel-welding-768x576.png 768w\" sizes=\"(max-width: 798px) 100vw, 798px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-90630f7 e-con-full e-flex elementor-repeater-item-default_padding elementor-repeater-item-none elementor-repeater-item-none_hover e-con e-child\" data-id=\"90630f7\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ang_container_spacing_size&quot;:&quot;default_padding&quot;,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-25d2d68 elementor-widget__width-initial elementor-widget-tablet__width-initial external_elementor-repeater-item-none_external elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-image\" data-id=\"25d2d68\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/toughness-steel.png\" class=\"attachment-large size-large wp-image-28586\" alt=\"toughness steel\" srcset=\"https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/toughness-steel.png 900w, https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/toughness-steel-300x200.png 300w, https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/toughness-steel-768x512.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-601365a elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-text-editor\" data-id=\"601365a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Q355-ter\u00e4ksen ominaisuudet:<ol><li>Suuri lujuus, hyv\u00e4 plastisuus ja sitkeys;<\/li><li>Hitsausteho on hyv\u00e4, hitsill\u00e4 on hyv\u00e4t hitsausominaisuudet<\/li><li>Kylm\u00e4 ty\u00f6stett\u00e4vyys on hyv\u00e4, kylm\u00e4 muovinen muodonmuutos pieni<\/li><li>Koneistettavuus on kohtuullinen, mutta se on huonompi kuin hiiliter\u00e4ksen nro 20<\/li><li>Korroosionkest\u00e4vyys ei ole yht\u00e4 hyv\u00e4 kuin ruostumattoman ter\u00e4ksen.<\/li><\/ol><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5560075 elementor-widget-mobile__width-initial elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-heading\" data-id=\"5560075\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Ero Q235 ja Q355 ter\u00e4ksen v\u00e4lill\u00e4<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a029aa9 elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-text-editor\" data-id=\"a029aa9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li><strong>Hiilipitoisuus<\/strong><\/li><\/ul><p style=\"padding-left: 40px;\">Ero Q235- ja Q355-ter\u00e4sten v\u00e4lill\u00e4 on hiilipitoisuudessa. Q235-ter\u00e4ksess\u00e4 on pieni hiilipitoisuus (0,3% - 0,4%), kun taas Q355-ter\u00e4ksess\u00e4 on suurempi prosenttiosuus (0,6% - 1%).<\/p><p style=\"padding-left: 40px;\">Q235 Ter\u00e4s: T\u00e4m\u00e4n tyyppinen ter\u00e4s tunnetaan my\u00f6s &quot;v\u00e4h\u00e4hiilisen\u00e4&quot; tai &quot;laatulaatuisena&quot; ter\u00e4ksen\u00e4, ja sit\u00e4 k\u00e4ytet\u00e4\u00e4n yleisesti rakenteellisiin tarkoituksiin, kuten I-palkkeihin tai kanavaprofiileihin, joissa vaaditaan lujuutta ja sitkeytt\u00e4, mutta hitsattavuutta ei tarvita.<\/p><ul><li><strong>Tuottovoima<\/strong><\/li><\/ul><p style=\"padding-left: 40px;\">Suurin ero n\u00e4iden kahden ter\u00e4styypin v\u00e4lill\u00e4 on niiden my\u00f6t\u00f6raja. My\u00f6t\u00f6lujuus on mitta siit\u00e4, kuinka paljon j\u00e4nnityst\u00e4 materiaali kest\u00e4\u00e4 ennen kuin se alkaa deformoitua plastisesti (eli pysyv\u00e4sti). Mit\u00e4 suurempi my\u00f6t\u00f6raja, sit\u00e4 kest\u00e4v\u00e4mpi metalli kest\u00e4\u00e4 pysyv\u00e4\u00e4 muodonmuutosta kuormituksen alaisena.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7a61377 external_elementor-repeater-item-none_external elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-image\" data-id=\"7a61377\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"452\" src=\"https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/steel-yield-strength.jpg\" class=\"attachment-large size-large wp-image-28591\" alt=\"\" srcset=\"https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/steel-yield-strength.jpg 982w, https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/steel-yield-strength-300x170.jpg 300w, https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/steel-yield-strength-768x434.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c6fffa6 elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-text-editor\" data-id=\"c6fffa6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"padding-left: 40px;\">Q235:n my\u00f6t\u00f6raja on 235 MPa (38 ksi), kun taas Q355:n my\u00f6t\u00f6raja on 355 MPa (50 ksi).<\/p><p style=\"padding-left: 40px;\">Q235 on heikoin ter\u00e4slaatu ja yleisin rakennusteollisuudessa k\u00e4ytetty ter\u00e4slaji. Sit\u00e4 k\u00e4ytet\u00e4\u00e4n tyypillisesti palkkeihin tai pilareihin, jotka eiv\u00e4t ole alttiina suurille j\u00e4nnityksille tai raskaille kuormille.<\/p><p style=\"padding-left: 40px;\">Q355 on vahvempi kuin Q235 ja sit\u00e4 voidaan k\u00e4ytt\u00e4\u00e4 tilanteissa, joissa on enemm\u00e4n \u00e4\u00e4rimm\u00e4ist\u00e4 rasitusta tai raskaita kuormia. Se l\u00f6ytyy tyypillisesti osista, jotka vaativat korkeampaa turvallisuustasoa, kuten palkit, pilarit tai liitokset rakennuksen pohjassa. Eritt\u00e4in lujalla ter\u00e4ksell\u00e4 on korkein lujuus, ja se on yleens\u00e4 varattu kriittisiin kohtiin, kuten rakenneosien v\u00e4lisiin liitoksiin ja muihin komponentteihin, kuten seiniin, liitt\u00e4viin liitoksiin.<\/p><p style=\"padding-left: 40px;\">Q355-ter\u00e4s on paljon vahvempaa kuin Q235-luokan ter\u00e4s, mutta sen valmistus maksaa enemm\u00e4n, koska se vaatii enemm\u00e4n aikaa metalliseoksen luomiseen. T\u00e4m\u00e4ntyyppinen ter\u00e4s kest\u00e4\u00e4 suuria m\u00e4\u00e4ri\u00e4 j\u00e4nnityst\u00e4 tai painetta ennen kuin se murtuu tai taipuu, mik\u00e4 tekee siit\u00e4 ihanteellisen rakennetarkoituksiin.<\/p><p style=\"padding-left: 40px;\">Siksi Q355-ter\u00e4s on vahvempi kuin Q235-ter\u00e4s.<\/p><p style=\"padding-left: 40px;\">\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-05b9486 e-flex e-con-boxed elementor-repeater-item-default_padding elementor-repeater-item-none elementor-repeater-item-none_hover e-con e-child\" data-id=\"05b9486\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ang_container_spacing_size&quot;:&quot;default_padding&quot;,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e2804cd elementor-widget__width-initial elementor-widget-tablet__width-initial external_elementor-repeater-item-none_external elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-image\" data-id=\"e2804cd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"590\" height=\"327\" src=\"https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/alloy-steel.jpg\" class=\"attachment-large size-large wp-image-28590\" alt=\"alloy-steel\" srcset=\"https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/alloy-steel.jpg 590w, https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/08\/alloy-steel-300x166.jpg 300w\" sizes=\"(max-width: 590px) 100vw, 590px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1bff8a2 elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-text-editor\" data-id=\"1bff8a2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li><strong>Kemiallinen koostumus<\/strong><\/li><\/ul><p style=\"padding-left: 40px;\">Q235 ja Q355 ovat kaksi suosituinta ter\u00e4st\u00e4 Kiinassa. Molemmat ovat niukkaseosteista ter\u00e4st\u00e4 ja niit\u00e4 k\u00e4ytet\u00e4\u00e4n laajalti rakentamisessa, rautatieteollisuudessa, laivanrakennuksessa ja muilla aloilla. Q235:n kemiallinen koostumus on seuraava: C\u22640,28%, Si\u22641%, Mn\u22641,65%, P\u22640,045% ja S\u22640,045%. Q355:n kemiallinen koostumus on seuraava: C\u22640,30%, Si\u22641%, Mn\u22641,65% ja P\u22640,045%. Suurin ero n\u00e4iden kahden ter\u00e4styypin v\u00e4lill\u00e4 on, ett\u00e4 ensimm\u00e4inen sis\u00e4lt\u00e4\u00e4 v\u00e4hemm\u00e4n piit\u00e4, mangaania ja fosforia kuin toinen.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b48901a elementor-widget-mobile__width-initial elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-heading\" data-id=\"b48901a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Kumpaa minun pit\u00e4isi k\u00e4ytt\u00e4\u00e4 projekteihini?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2007562 elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-text-editor\" data-id=\"2007562\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>N\u00e4m\u00e4 kaksi ter\u00e4st\u00e4 ovat paksuudeltaan ja lujuudeltaan samanlaisia, mutta Q355-ter\u00e4s on hieman kalliimpi.<\/p><p>Q235 on yleinen rakenneter\u00e4s, jota voidaan k\u00e4ytt\u00e4\u00e4 asuin- tai liikerakentamiseen. Sen murtolujuus on 235 000 PSI ja my\u00f6t\u00f6lujuus 100 000 PSI. Q355-ter\u00e4ksell\u00e4 on sama murtolujuus kuin Q235:ll\u00e4, mutta sen my\u00f6t\u00f6lujuus on hieman korkeampi 110 000 PSI:ss\u00e4.<\/p><p>Kustannusten n\u00e4k\u00f6kulmasta on syyt\u00e4 huomata, ett\u00e4 n\u00e4iden kahden ter\u00e4slaadun v\u00e4linen hintaero on nimellinen \u2013 tyypillisesti alle $100 tonnilta. L\u00f6yd\u00e4t t\u00e4t\u00e4 materiaalia monista paikoista rakennusty\u00f6mailla, mukaan lukien ter\u00e4srakenteet, rakennustelineet, reunasuojakaiteet ja rakennusaita jne.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-902f745 e-flex e-con-boxed elementor-repeater-item-default_padding elementor-repeater-item-none elementor-repeater-item-none_hover e-con e-child\" data-id=\"902f745\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ang_container_spacing_size&quot;:&quot;default_padding&quot;,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6cd0e2d external_elementor-repeater-item-none_external elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-image\" data-id=\"6cd0e2d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/apacsafety.com\/fi\/ringlock-scaffolding-systems\/\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/07\/scaffolding-project-1.jpg\" class=\"attachment-large size-large wp-image-26584\" alt=\"scaffolding\" srcset=\"https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/07\/scaffolding-project-1.jpg 800w, https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/07\/scaffolding-project-1-300x225.jpg 300w, https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/07\/scaffolding-project-1-768x576.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-18867ca external_elementor-repeater-item-none_external elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-image\" data-id=\"18867ca\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/apacsafety.com\/fi\/edge-protection-barrier\/\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/06\/edge-protection-projects-england.jpg\" class=\"attachment-large size-large wp-image-25661\" alt=\"edge protection projects england\" srcset=\"https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/06\/edge-protection-projects-england.jpg 800w, https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/06\/edge-protection-projects-england-300x225.jpg 300w, https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/06\/edge-protection-projects-england-768x576.jpg 768w, https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/06\/edge-protection-projects-england-595xh.jpg 595w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d0a400f external_elementor-repeater-item-none_external elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-image\" data-id=\"d0a400f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/apacsafety.com\/fi\/temporary-fence\/\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"798\" height=\"599\" src=\"https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/03\/black-base-for-heras-fence.jpg\" class=\"attachment-large size-large wp-image-20859\" alt=\"black base for heras fence\" srcset=\"https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/03\/black-base-for-heras-fence.jpg 798w, https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/03\/black-base-for-heras-fence-300x225.jpg 300w, https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/03\/black-base-for-heras-fence-768x576.jpg 768w, https:\/\/apacsafety.com\/wp-content\/uploads\/2022\/03\/black-base-for-heras-fence-595xh.jpg 595w\" sizes=\"(max-width: 798px) 100vw, 798px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aaab73e elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-text-editor\" data-id=\"aaab73e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Q355 on ter\u00e4sseos, jonka hiilipitoisuus on korkeampi kuin Q235. T\u00e4m\u00e4 johtaa korkeampaan vetolujuuteen, mik\u00e4 tekee siit\u00e4 ihanteellisen sovelluksiin, joissa vaaditaan lujuutta. Sill\u00e4 on my\u00f6s alhaisempi sulamispiste kuin muilla ter\u00e4ksill\u00e4, joten se soveltuu hitsaus- ja kuumamuovaussovelluksiin. Kuitenkin sen ominaisuudet tekev\u00e4t siit\u00e4 my\u00f6s herkemm\u00e4n korroosiolle. T\u00e4m\u00e4n seurauksena sit\u00e4 k\u00e4ytet\u00e4\u00e4n tyypillisesti vain sovelluksissa, joissa korroosionkest\u00e4vyys ei ole kriittinen huolenaihe.<\/p><p>Joten kun valitset materiaaleja, sinun on otettava huomioon budjetti ja sovellusskenaario, tietysti voit valita jommankumman lis\u00e4ksi my\u00f6s kahden materiaalin yhdistelm\u00e4n saadaksesi kustannustehokkaimman tuotteen.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a692ea8 elementor-widget-mobile__width-initial elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-heading\" data-id=\"a692ea8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Johtop\u00e4\u00e4t\u00f6s<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8d06a5a elementor-repeater-item-none elementor-repeater-item-none_hover elementor-widget elementor-widget-text-editor\" data-id=\"8d06a5a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Yhteenvetona voidaan todeta, ett\u00e4 Q235:ll\u00e4 ja Q355:ll\u00e4 on omat etunsa ja haittansa, ja jokaisella on omat sovellusalueet. Siksi on tarpeen valita huolellisesti sopiva ter\u00e4styyppi todellisen tilanteen mukaan.\u00a0<\/p><p>Voit suoraan <span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/apacsafety.com\/fi\/contact-us\/\">ota yhteytt\u00e4<\/a><\/span> asiantuntijamme, annamme sinulle ammattimaisimmat ehdotukset!<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Introduction Steel is a common material used in construction, and there are different grades of steel available depending on the intended use. Two common grades of steel are Q235 and Q345. So what is the difference between these two grades? And which one should you choose for your project? Read on to find out. Update [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":27170,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86,20,1],"tags":[],"class_list":["post-27167","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-construction-fence","category-edge-protection","category-scaffolding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What Is the Difference Between Q235 and Q345 Steel?<\/title>\n<meta name=\"description\" content=\"What Is the Difference Between Q235 and Q345 Steel? Hope this blog will tell you the answer. 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