A36 S355 H Section Beam

1.Cov nyhuv ntawm Carbon.

Qhov no ntawm steel muaj siab formability thiab yuav ua tau yooj yim ua hauj lwm thiab welded vim nws cov ntsiab lus carbon tsawg. Cov ntsiab lus qis carbon kuj txhim kho ASTM A36 steel lub zog thiab khoov muaj peev xwm, pab nws tiv thaiv kev tawg.

2.Effect ntawm Manganese thiab Silicon.

Qhov sib ntxiv ntawm manganese txhim kho ASTM A36 steel qhov hnav tsis kam, lub zog, thiab muaj peev xwm hardening. Nws tseem tiv thaiv kev tawg ntawm cov hlau thaum txhim kho nws cov formability thiab vuam muaj peev xwm. Ntxiv manganese ua rau nws yooj yim rau peb ua haujlwm ntawm ASTM A36 thiab tsim cov duab xav tau tawm ntawm cov hlau.

Silicon txhim kho corrosion kuj, lub zog, thiab toughness ntawm cov hlau. Nws kuj ua raws li deoxidizer thiab tshem tawm cov pa oxygen ntawm cov hlau.

Kev tshem tawm cov pa oxygen los ntawm cov hlau yog qhov tseem ceeb vim nws tuaj yeem tsim cov porosities thiab lwm yam tsis xws luag, tshwj xeeb tshaj yog thaum cov hlau raug nrum. Silicon kuj tseem txhim kho cov hlau muaj peev xwm tiv taus thermal shock, ua rau nws haum rau siab -kev siv kub.

S355JR yog BS EN 10025; S355JR yog sib npaug rau cov hlau tsis tshua muaj - alloy siab - lub zog steel qauv (European standard EN10025) hauv Suav teb.

Tshuaj muaj pes tsawg leeg: C: Tsawg dua los yog sib npaug rau 0.22; Si: Tsawg dua lossis sib npaug rau 0.55; Mn: Tsawg dua lossis sib npaug rau 1.60; P: Tsawg dua lossis sib npaug rau 0.025; S: Tsawg dua lossis sib npaug rau 0.025

355 hais txog lub zog tawm los ntawm 355MPa.

Lub zog tawm los ntawm 355MPa yog sib npaug rau GB ntawm Q345 feem ntau hais tias qis alloy phaj.

JR tau hais tias tus lej tsis muaj cov cai tshwj xeeb xws li kev ua txias txias, thiab cov khoom siv ze tshaj plaws hauv peb lub tebchaws yog: Q345B.

Thib ob, S355J0 yog European tus qauv qis alloy, sib haum rau cov khoom siv hauv tsev Q355C,0 sawv cev rau qhov kub thiab txias 0 degrees.

Tshuaj muaj pes tsawg leeg ntawm S355J0 steel phaj:

C: Tsawg dua lossis sib npaug rau 0.22; Si: Tsawg dua lossis sib npaug rau 0.55; Mn: Tsawg dua lossis sib npaug rau 1.60; P: Tsawg dua lossis sib npaug rau 0.025; S: Tsawg dua lossis sib npaug rau 0.025

S355J0 Tus Qauv Ua Haujlwm: European tus qauv EN10025

Cim npe nrov: a36 s355 h seem beam, Tuam Tshoj a36 s355 h seem beam manufacturers, lwm tus neeg, Hoobkas