Lub zog tawm los ntawm Q355NH huab cua steel hloov li cas?

1. Yield zog ntawmsub-zero kub (hauv qab 20 degree, down mus rau -40℃los yog qis dua)

Raws li kubtxohauv qab chav tsev kub, lub zog tawm los ntawm Q355NHnce ceeb.

Nyob ib ncig ntawm0 degree, yield zog yog feem ntau5-10% siab duatshaj li ntawm 20 degree.

Ntawm-20 degree, nws tuaj yeem yog10-15% siab duatshaj li ntawm chav tsev kub.

Ntawm-40 degree, yield zog yuav nce los ntawm15–25%piv rau 20 degree.

2. Yield zog ntawmchav tsev kub (20 degree)

Qhov no yog qhovsiv cov xwm txheejtxhais hauv cov qauv (GB/T 4171-2008).

Qhov tsawg kawg nkaus yield zog nyob ntawm thickness:

Ntau dua lossis sib npaug li 355 MParau t Tsawg dua lossis sib npaug li 16 hli

Ntau dua lossis sib npaug li 335 MParau 16

Ntau dua lossis sib npaug li 325 MParau 40

Ntau dua lossis sib npaug li 315 MParau 60

3. Yield zog ntawmNruab nrab siab kub (100℃txog 300 degree)

Raws li kubnce siab tshaj 100 degree, yield zogpib maj mam txo.

Ntawm100 degree, yield zog yog roughlyzoo ib yam li lossis qis duatshaj li ntawm 20 degree.

Ntawm200 degree, nws yog feem ntau10-20% qis duatshaj qhov ntsuas kub ntawm chav tsev.

Ntawm300 degree, nws tuaj yeem poob los20–35%piv rau chav tsev kub.

4. Yield zog ntawmkub siab (siab tshaj 300 degree, tshwj xeeb tshaj yog> 400 degree)

Tshaj 300 degree, yield zogpoob sai dua.

Ntawm400 degree, yield zog tsuas yog50–65%ntawm tus nqi chav tsev kub.

Saum toj no450-500 degree, cov khoom nkag mus rau hauv ib cheeb tsam ntawm qhov tseem ceeb softening; yield zog poob sharply, thiab creep cwj pwm yog ib qho tseem ceeb.

Cov ntsiab lus ntawm qhov sib txawv

Tsawg kub (↓ T): Yield zog ↑ (tab sis toughness ↓)

Chav ntsuas kub: ruaj khov, tus qauv qhia tshwj xeeb

Kub siab (↑ T): Yield zog ↓, tshwj xeeb tshaj yog saum 300 degree