### 1. Cov ntaub ntawv ntawm A213 T12
** sa213 t12 ** yog ** chromium-molybdenum alloy steel
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### 2.} sa213 Cov Khoom Siv
** SA213 / A213M) ** Yog qhov kev sib txuas lus zoo li T2, T9, T91, T91, T91, thiab lwm yam}, siv nyob rau hauv Kev siab siab / kub ib puag ncig.
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### 3. muaj pes tsawg leeg ntawm sa213 t9
** SA213 T9 ** CUAB (ASTM A213 / A213M):
- ** Carbon (C) **: 0.15% Max
- ** MANGANUSE (MN) **: 0.30-0.60%
- ** Phosphorus (P) **: 0.025% Max
- ** SENULFUR (S) **: 0.025% Max
- ** silicon (si) **: 0.25-1.00%
- ** Chromium (CR) **: 8.00-10.00%
- ** Molybdenum (mo) **: 0.90-1.10%
* Kev tsim qauv tsis yog: K90941 *
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### 4. sa 210 khoom
** SA210 (ASME SA210 / ASTM A210 / ASTM A210) ** DEAMLESS nruab nrab-cov roj carbon hlau boiler thiab super {4 4} qeb qib:
- ** QIB A1 **: Cov hlau carbon (MN 0.27-0.93%)
- ** QIB C **: Ntau dua-muaj zog carbon hlau (mn 0.29-1.06%)
* Feem ntau siv nyob rau hauv qis / nruab nrab-kub boiler ntu . *
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### 5. hardness ntawm sa213 T91
** SA213 T91 ** Hardness (ASTM A213 / A213M):
- ** Tom qab ib txwm & tempering **:
- ** QHOV MADE HARDNESS **: 265 HBW (Brinell) lossis 25 HRC (Rockwell C)
- ** Cov ntau yam li 4: 190-250 HBW
* Tswj nyuaj ua kom muaj lub zog nkag mus thiab weldability rau kev pab kub siab (txog 600 degree) {2} {2} {2} {2} {2} {
Rau txhua cov ntaub ntawv, xa mus rau qhov tseeb Astm / ASME specifications rau kev xeem ntawv thiab thev taus .
