{"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\/et\/difference-between-q235-and-q345\/","title":{"rendered":"Mis vahe on Q235 ja Q345 terasel ning kumba peaksin oma projektide jaoks kasutama?"},"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\">Sissejuhatus<\/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>Teras on ehituses tavaline materjal ja olenevalt kasutusotstarbest on saadaval erinevat klassi terast. Kaks levinumat teraseklassi on Q235 ja Q345. Mis vahe on neil kahel klassil? Ja millise peaksite oma projekti jaoks valima?<\/p><p>Loe edasi, et teada saada.<\/p><p><span style=\"color: #000000;\"><strong>V\u00e4rskenduse m\u00e4rkus:<\/strong> <\/span><\/p><p>Vastavalt Hiina riiklikule standardile \u201cMadallegeeritud k\u00f5rgtugev konstruktsiooniteras\u201d GB\/T1591-2018 on alates 1. veebruarist 2019 terase klass Q345 asendatud Q355-ga, mis vastab EL-i standardile S355 teraseklassile.<\/p><p>J\u00e4rgmises tekstis kasutatakse Q345 asemel Q355.<\/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\">Mis on Q235 ja Q355 teras?<\/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>Esiteks on teras metallisulami t\u00fc\u00fcp, mis koosneb peamiselt rauast ja s\u00fcsinikust. Sellel on maailmas palju kasutusalasid autodest hooneteni. Teras on m\u00e4\u00e4ratletud selle tugevuse ja k\u00f5vaduse j\u00e4rgi, mis v\u00f5ib varieeruda s\u00f5ltuvalt muude selles sisalduvate elementide koostisest.<\/p><p>K\u00f5ige levinumad teraset\u00fc\u00fcbid liigitatakse s\u00fcsinikusisalduse j\u00e4rgi:<\/p><p>S\u00fcsinikteras (0,03% \u2013 1,7% s\u00fcsinik)<\/p><p>\u2013 Madala s\u00fcsinikusisaldusega teras (v\u00e4hem kui 0,31 TP3T s\u00fcsinikku)<\/p><p>\u2013 Keskmise s\u00fcsinikusisaldusega teras (0,3% \u2013 0,6% s\u00fcsinik)<\/p><p>\u2013 K\u00f5rge s\u00fcsinikusisaldusega teras (rohkem kui 0,61 TP3T kuni 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 Hiina terasesulam, mis sisaldab s\u00fcsinikku, r\u00e4ni, mangaani ja v\u00e4hesel m\u00e4\u00e4ral muid elemente. Sellel on suhteliselt madal t\u00f5mbetugevus ja seda kasutatakse ehitusrakendustes, kus selle tugevus ei pea olema eriti k\u00f5rge.<\/p><ul><li>Q355<\/li><\/ul><p>Q355 teras on madala legeeritud terase t\u00fc\u00fcp, mida kasutatakse sildade, hoonete ja muude konstruktsioonide valmistamisel. Selle voolavuspiir on 355 MPa ja t\u00f5mbetugevus 470\u2013660 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 terase omadused<\/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 terase omadused:<\/li><\/ul><ol><li style=\"list-style-type: none;\"><ol><li>Sellel on hea plastilisus ja sitkus;<\/li><li>Hea keevitatavus ja k\u00fclm t\u00f6\u00f6deldavus;<\/li><li>M\u00f5\u00f5dukas korrosioonikindlus;<\/li><li>on teatud kulumiskindlusega;<\/li><li>Madal k\u00fclmk\u00f5vastuvus, kergesti keevitatav pragunemine. Q355 teras on madala legeeritud k\u00f5rgtugev konstruktsiooniteras, millel on head mehaanilised omadused, tugevus madalal temperatuuril, hea keevitatavus, m\u00f5\u00f5dukas k\u00fclma paindeomadus ja m\u00f5\u00f5dukas sitkus.<\/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 terase omadused:<ol><li>Suur tugevus, hea plastilisus ja sitkus;<\/li><li>Keevitustulemused on head, keevis\u00f5mblusel on head keevitusomadused<\/li><li>K\u00fclm t\u00f6\u00f6deldavus on hea, k\u00fclmplastne deformatsioon on v\u00e4ike<\/li><li>T\u00f6\u00f6deldavus on \u00f5iglane, kuid see on halvem kui s\u00fcsinikterasel nr 20<\/li><li>Korrosioonikindlus ei ole nii hea kui roostevaba teras.<\/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\">Erinevus Q235 ja Q355 terase vahel<\/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>S\u00fcsinikusisaldus<\/strong><\/li><\/ul><p style=\"padding-left: 40px;\">Q235 ja Q355 terase erinevus seisneb s\u00fcsinikusisalduses. Q235 terasel on v\u00e4ike s\u00fcsinikusisaldus (0,3% kuni 0,4%), samas kui Q355 terasel on suurem protsent (0,6% kuni 1%).<\/p><p style=\"padding-left: 40px;\">Q235 teras: seda t\u00fc\u00fcpi terast tuntakse ka kui &quot;madala s\u00fcsinikusisaldusega&quot; v\u00f5i &quot;kvaliteetset&quot; terast ja seda kasutatakse tavaliselt ehituslikel eesm\u00e4rkidel, nagu I-talad v\u00f5i kanaliosad, kus on n\u00f5utav tugevus ja elastsus, kuid keevitatavus pole vajalik.<\/p><ul><li><strong>Saagikuse tugevus<\/strong><\/li><\/ul><p style=\"padding-left: 40px;\">Peamine erinevus nende kahe teraseliigi vahel on nende voolavuspiir. Voolutugevus on m\u00f5\u00f5t, mis n\u00e4itab, kui suurt pinget materjal talub enne, kui see hakkab plastiliselt (st p\u00fcsivalt) deformeeruma. Mida suurem on voolavuspiir, seda vastupidavam on metall koormuse all tekkivale p\u00fcsivale deformatsioonile.<\/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 voolavuspiir on 235 MPa (38 ksi), Q355 voolavuspiir on aga 355 MPa (50 ksi).<\/p><p style=\"padding-left: 40px;\">Q235 on k\u00f5ige n\u00f5rgem terase klass ja see on ehitust\u00f6\u00f6stuses k\u00f5ige levinum t\u00fc\u00fcp. Tavaliselt kasutatakse seda talade v\u00f5i sammaste jaoks, mis ei puutu kokku suurte pingete v\u00f5i raskete koormustega.<\/p><p style=\"padding-left: 40px;\">Q355 on tugevam kui Q235 ja seda saab kasutada olukordades, kus esineb \u00e4\u00e4rmuslikumaid pingeid v\u00f5i raskeid koormusi. Tavaliselt leidub seda osades, mis n\u00f5uavad k\u00f5rgemat ohutust, nagu talad, sambad v\u00f5i hoone aluse \u00fchendused. K\u00f5rgtugeval terasel on k\u00f5rgeim tugevus ja see on tavaliselt reserveeritud kriitiliste piirkondade jaoks, nagu konstruktsioonielementide vahelised \u00fchendused ja \u00fchenduskohad, mis \u00fchendavad muid komponente, nagu seinad.<\/p><p style=\"padding-left: 40px;\">Q355 teras on palju tugevam kui Q235 klassi teras, kuid selle tootmine maksab rohkem, kuna metallisulami loomine n\u00f5uab rohkem aega. Seda t\u00fc\u00fcpi teras talub suurt pinget v\u00f5i survet, enne kui see puruneb v\u00f5i paindub, mis muudab selle ideaalseks konstruktsioonilistel eesm\u00e4rkidel.<\/p><p style=\"padding-left: 40px;\">Seet\u00f5ttu on Q355 teras tugevam kui Q235 teras.<\/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>Keemiline koostis<\/strong><\/li><\/ul><p style=\"padding-left: 40px;\">Q235 ja Q355 on Hiinas kaks k\u00f5ige populaarsemat terast. M\u00f5lemad on madala legeeritud terasest ja neid kasutatakse laialdaselt ehituses, raudteel, laevaehituses ja muudes t\u00f6\u00f6stusharudes. Q235 keemiline koostis on j\u00e4rgmine: C\u22640,28%, Si\u22641%, Mn\u22641,65%, P\u22640,045% ja S\u22640,045%. Q355 keemiline koostis on j\u00e4rgmine: C\u22640,30%, Si\u22641%, Mn\u22641,65% ja P\u22640,045%. Peamine erinevus nende kahe teraseliigi vahel on see, et esimene sisaldab v\u00e4hem r\u00e4ni, mangaani ja fosforit kui teine.<\/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\">Millist neist peaksin oma projektide jaoks kasutama?<\/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>Need kaks terast on paksuse ja tugevusega sarnased, kuid Q355 teras on veidi kallim.<\/p><p>Q235 on tavaline konstruktsiooniteras, mida saab kasutada elamute v\u00f5i \u00e4rihoonete ehitamiseks. Selle maksimaalne t\u00f5mbetugevus on 235 000 PSI ja voolavuspiir 100 000 PSI. Q355 terasel on sama l\u00f5plik t\u00f5mbetugevus kui Q235, kuid selle voolavuspiir on 110 000 PSI juures veidi k\u00f5rgem.<\/p><p>Kulude seisukohast tasub m\u00e4rkida, et nende kahe teraseklassi hinnaerinevus on nominaalne \u2013 tavaliselt alla $100 tonni kohta. Leiate seda materjali paljudes kohtades ehitusplatside \u00fcmbruses, sealhulgas teraskonstruktsioonide, tellingute, servakaitset\u00f5kete ja ehitusaedade jms juures.<\/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\/et\/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\/et\/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\/et\/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 terasesulam, mille s\u00fcsinikusisaldus on suurem kui Q235. Selle tulemuseks on suurem t\u00f5mbetugevus, mis muudab selle ideaalseks rakenduste jaoks, kus on vaja tugevust. Sellel on ka madalam sulamistemperatuur kui teistel terastel, mist\u00f5ttu sobib see keevitamiseks ja kuumvormimiseks. Kuid selle omadused muudavad selle ka korrosioonile vastuv\u00f5tlikumaks. Seet\u00f5ttu kasutatakse seda tavaliselt ainult siis, kui korrosioonikindlus ei ole kriitiline probleem.<\/p><p>Seega tuleb materjalide valikul arvestada eelarve ja kasutusstsenaariumiga, loomulikult saab lisaks \u00fche v\u00f5i teise valikule valida ka kahe materjali segu, et saada k\u00f5ige kuluefektiivsem toode.<\/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\">J\u00e4reldus<\/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>Kokkuv\u00f5tteks v\u00f5ib \u00f6elda, et Q235-l ja Q355-l on oma eelised ja puudused ning m\u00f5lemal on oma rakendusvaldkonnad. Seet\u00f5ttu on vaja hoolikalt valida sobiv terase t\u00fc\u00fcp vastavalt tegelikule olukorrale.\u00a0<\/p><p>Saate otse <span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/apacsafety.com\/et\/contact-us\/\">kontakti<\/a><\/span> meie eksperdid, anname teile k\u00f5ige professionaalsemad soovitused!<\/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. Click and read more!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/apacsafety.com\/et\/difference-between-q235-and-q345\/\" \/>\n<meta property=\"og:locale\" content=\"et_EE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Is the Difference Between Q235 and Q345 Steel?\" \/>\n<meta property=\"og:description\" content=\"What Is the Difference Between Q235 and Q345 Steel? Hope this blog will tell you the answer. 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