A516Gr70 Siab Vessel Steel Phaj

ASTM A516 Gr 70 yog tus qauv tsim los ntawm American Society for Testing and Materials (ASTM) los tswj cov khoom siv thiab cov khoom siv hluav taws xob ntawm Carbon Steel daim hlau.

ASTM A516 Gr 70 tus qauv qhia cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, kev kho cua sov, kev xav tau hardness, cuam tshuam qhov xav tau, flanging kev ua tau zoo thiab lwm yam kev xav tau ntawm A516 Gr 70 carbon steel phaj.

1. Chemical composition yuav tsum:
- Cov ntsiab lus carbon (C): 0.27% Max
Manganese cov ntsiab lus (Mn): 0 85-1.20%
- Phosphorus cov ntsiab lus (P): 0.035% Max
- Cov ntsiab lus sulfur (S): 0.035% Max
- Silicon cov ntsiab lus (Si): 0 15-0.40%
- Cov ntsiab lus tooj liab (Cu): 0.35% Max

2. Mechanical Performance Requirements:
- Yield zog: 38-70 ksi (1 ksi =1000 psi)
- Tensile zog: 70-90 ksi
- Elongation (Elongation): 17% yam tsawg kawg nkaus

3. Kev kho cua sov yuav tsum:
A516 Gr 70 phaj yuav tsum tau muab tshem tawm thaum cua sov rau 1650 degree F (900 degree) thiab khaws cia hauv huab cua thaum txias.

4. cuam tshuam toughness yuav tsum:
Qhov cuam tshuam toughness ntawm A516 Gr 70 steel phaj ua tau raws li qhov yuav tsum tau ua ntawm tus qauv.

5. Hardness yuav tsum:
- Lub hardness ntawm A516 Gr 70 steel phaj yuav tsum nyob rau hauv Brinell hardness (HB) ntau.

6. Flanging kev ua tau zoo yuav tsum:
Flanging kev ua tau zoo ntawm A516 Gr 70 steel phaj ua tau raws li qhov yuav tsum tau ua ntawm tus qauv.

ASTM A516 Gr 70 tus qauv yog siv rau cov pa roj carbon steel daim hlau rau kev tsim cov khoom kub thiab siab siab, boilers thiab lwm cov hlab ntsha. Cov txheej txheem no ua kom ntseeg tau tias cov tshuaj lom neeg muaj pes tsawg leeg, cov khoom siv kho tshuab thiab lwm yam khoom ntawm cov khoom ua tau raws li cov kev cai tshwj xeeb los xyuas kom muaj kev nyab xeeb thiab kev ntseeg siab hauv qhov kub thiab txias ib puag ncig.

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