S355 Steel Phaj Qib JR J0 J2 K2

S355 steel phaj (Qib JR/J0/J2/K2) yog ib yam uas tsis muaj alloy siab zog structural steel, uas ua raws li European txheem EN 10025-2.

S: S txhais tau tias cov qauv hlau.

355: Qhia qhov tsawg kawg nkaus tawm lub zog 355MPa.

JR: Nws muaj kev cuam tshuam ntau dua lub zog nqus ntawm chav tsev kub.

J{0}}: Kev ntsuas qhov ntsuas kub yog 0 degree .

J2: Qhov ntsuas kub ntawm qhov ntsuas kub yog -20 degree .

K2: Qhov ntsuas kub ntawm qhov ntsuas kub yog -40 degree .

S355 steel phaj muaj carbon, manganese, silicon, phosphorus, sulfur thiab lwm yam khoom.

C: Carbon yog ib qho tseem ceeb uas tswj cov hardness ntawm hlau. Txawm li cas los xij, cov ntsiab lus carbon tsis yooj yim rau siab dhau, txwv tsis pub nws yuav cuam tshuam rau kev ua haujlwm vuam.

Mn: Manganese muaj txiaj ntsig los txhim kho lub zog thiab toughness ntawm cov hlau phaj.

Si: Silicon yog pab tau kom cov elastic txwv ntawm steel daim hlau.

P thiab S: Cov ntsiab lus ntawm phosphorus thiab sulfur yog tsawg. Cov ntsiab lus ntawm phosphorus siab dhau tuaj yeem txo cov plasticity thiab toughness ntawm cov hlau. Cov ntsiab lus sulfur ntau dhau tuaj yeem ua rau kub brittleness ntawm steel phaj thaum ua haujlwm kub.

S355 steel phaj kuj tseem siv rau kev ua rau lub kaum sab xis steel, channel steel, I-steel, H-shaped steel thiab lwm yam steel structural Cheebtsam rau kev tsim kho, machinery, roj av, tshuaj, thiab lwm yam teb.

S355 steel phaj yog dav siv. Txawm li cas los xij, cov qib sib txawv ntawm S355 steel phaj yog tsim rau cov haujlwm sib txawv. Yog tias koj tsis paub yuav ua li cas xaiv cov hlau hlau tsim nyog rau koj qhov project. Thov hu rau peb cov kws muag khoom muag.