ASTM A213 T9 T91 Chav Dej Boiler
Khoom siv thiab Specification
| Khoom siv | Specification |
|---|---|
| ASTM A 213 | T9 T91 |
Tshuaj muaj pes tsawg leeg
Cov tshuaj muaj pes tsawg leeg ntawm ASTM A213 T9 T91 chav boiler cov ntaub ntawv yog raws li nram no:
| Element | ASTM A213 T9 (%) | ASTM A213 T91 (%) |
|---|---|---|
| Cov pa roj carbon (C) | 0.15 max | 0.08-0.12 |
| Manganese (Mn) | 0.30-0.60 | 0.30-0.60 |
| Phosphorus (P) | 0.025 max | 0.020 max |
| Sulfur (S) | 0.025 max | 0.010 max |
| Silicon (Si) | 0.25-1.00 | 0.20-0.50 |
| Chromium (Cr) | 8.00-10.00 | 8.00-9.50 |
| Molybdenum (hli) | 0.90-1.10 | 0.85-1.05 |
Mechanical Properties
Cov khoom siv ntawm ASTM A213 T9 thiab T91 chav boiler cov ntaub ntawv tau muab hauv qab no:
ASTM A213 T9
| Khoom | Tus nqi |
|---|---|
| Tensile zog | 415 MPa (min) |
| Yield zog | 205 MPa (min) |
| Elongation | 30 feem pua (min) |
| Hardness | HLB 163 (max) |
ASTM A213 T91
| Khoom | Tus nqi |
|---|---|
| Tensile zog | 585 MPa (min) |
| Yield zog | 415 MPa (min) |
| Elongation | 20 feem pua (min) |
| Hardness | HRB 250 (max) |
Qib Steel
Cov qib steel rau ASTM A213 T9 thiab T91 chav boiler cov ntaub ntawv yog raws li nram no:
- ASTM A213 T9: Qib 9
- ASTM A213 T91: Qib 91
Daim ntawv thov
ASTM A213 T9 thiab T91 chav boiler cov ntaub ntawv yog dav siv nyob rau hauv kev tsim kho ntawm chav boilers thiab high-pressure piping systems. Cov ntaub ntawv no yog tsim tshwj xeeb los tiv thaiv qhov kub thiab txias thiab kev kub ntxhov hauv cov txheej txheem tsim hluav taws xob. Lawv feem ntau siv nyob rau hauv cov chaw tsim hluav taws xob, refineries, thiab petrochemical cov nroj tsuag, qhov chaw txhim khu kev qha thiab muaj txiaj ntsig ntawm chav tsim hluav taws xob yog qhov tseem ceeb.
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