S355J2W (H) huab cua-resistant steel phaj
Cov lus piav qhia txheej txheem: European qauv qauv steel kub dov steel daim hlau thiab strips
S: structural steel
355: Qhia tawm lub zog siab tshaj plaws, MPa. Raws li lub thickness nce, cov txiaj ntsig lav tus nqi txo.
J2: Kev cuam tshuam lub zog, -20 degree cuam tshuam lub zog ** tus nqi 27J
W: Huab cua resistant
Cov khoom tseem ceeb ntawm S355J2W steel phaj yog hlau, carbon, manganese, phosphorus thiab lwm yam. Cov ntsiab lus carbon yog tsawg thiab cov ntsiab lus alloying yog nruab nrab. Nws muaj cov cuab yeej zoo txhua yam thiab kev ua haujlwm vuam. Tshwj xeeb, S355J2W steel phaj muaj cov yam ntxwv hauv qab no:
1. Lub zog siab: S355J2W steel phaj muaj lub zog muaj zog thiab lub zog tensile, tuaj yeem tiv taus cov khoom loj thiab muaj kev nyab xeeb siab.
2. Zoo plasticity: S355J2W steel phaj muaj cov yas zoo ntawm qhov kub thiab txias thiab tuaj yeem ua tiav qee yam ntawm kev deformation, xws li khoov, curling, thiab lwm yam.
3. Kev ua haujlwm zoo vuam: S355J2W steel phaj muaj qhov tsim nyog ntawm cov khoom siv hlau thiab muaj kev ua haujlwm vuam zoo. Lub welded sib koom ua ke muaj lub zog siab thiab zoo compactness.
4. Zoo corrosion kuj: Tom qab kev kho tshwj xeeb, S355J2W steel phaj muaj corrosion kuj zoo thiab tuaj yeem siv rau hauv ib puag ncig hnyav.
C carbon: tsawg dua lossis sib npaug rau 0.16
Silicon: tsawg dua lossis sib npaug rau 0.50
Mn manganese: 0.50 ~ 1.50
P phosphorus: tsawg dua lossis sib npaug rau 0.025
S sulfur: tsawg dua lossis sib npaug rau 0.025
Ni nickel: tsawg dua lossis sib npaug rau 0.65
Cr: {0}.40~0.80
Mo: tsawg dua lossis sib npaug rau 0.30
Cu: {{0}}.25~0.55
Nb niobium: {{0}}.015~0.06
V vanadium: {{0}}.02~0.12
