S355J2 yog ib hom uas tsis yog-alloy high-strength steel daim hlau teev nyob rau hauv tus qauv ntawm EN10025-2, 'S' txhais tau tias 'Structural Steel','355' txhais tau tias min yield zog ntawm 355Mpa thiab 'J2' txhais tau tias {{8 }} degree 's impact test. Nrog rau cov khoom siv tshuaj thiab cov khoom siv, S355J2 Steel Phaj tau siv dav hauv kev tsim khoom / kev tsim kho tshuab engineering, nkoj (tom qab tau pom zoo los ntawm Lub Koom Haum Kev faib tawm xws li ABS, DNV-GL, LR, BV, thiab lwm yam), txuas hniav, vaj tse, boilers thiab cov hlab ntsha siab, lub zog hluav taws xob thiab hom tsheb. Txhua daim ntawv thov raug txiav txim siab tom qab kev soj ntsuam ntawm S355J2 qhov kev ua tau zoo ntawm weldability, txiav, txias thiab kub ua haujlwm, kev kho cua sov, malleability, uniform stability thiab loj seem hardenability, thiab lwm yam.
Chemical Component rau S355J2 Steel Phaj (%):
| C: | Mn: | Si: | P: | S: | Cu: |
| 0.17(max) | 1.60 (max) | 0.55(max) | 0.025(max) | 0.025(max) | 0.55(max) |
Mechanical Properties:
Tensile zog: 450-680Mpa
Tawm Zog: 355Mpa (min)
Elongation (%): 17% (min)
Hauv S355J2, "S" sawv cev rau cov qauv hlau, "355" txhais tau hais tias lub zog tawm los tsis tsawg dua 355MPa, thiab "J" txhais tau hais tias nws qhov kub tsis tshua muaj kev cuam tshuam kev ua haujlwm kub yog -20 degrees Celsius (2 degrees. Celsius, qhov kub ntawm qhov tawm los lub zog). 2" qhia tau hais tias nws yog cov hlau tsis tshua muaj hlau uas muaj zog ntau dua thiab qhov kub tsis tshua muaj zog zoo piv rau lwm cov qib steel zoo sib xws.
S355J2 nyob rau hauv cov txheej txheem tsim, vim nws cov ntsiab lus carbon tsawg, tuaj yeem kho tau yooj yim thaum tshav kub kub kho thiab welded thaum tuav lub zog txaus thiab toughness. Cov yam ntxwv no ua rau S355J2 tau siv dav hauv ntau daim ntawv thov engineering, xws li txuas hniav, kev tsim kho, cov hlab ntsha siab, cov khoom siv thiab lwm yam haujlwm.
