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ASTM A335 P5 32'' 813mm x 140mm High Pressure Boiler Alloy Steel Tube
1. Standards
ASTM A106 ——Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service
ASTM A335 ——Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
2. Application
For the high-pressure boiler and steam pipes, and the petrochemical industry pipes;
Power plant; Chemical Fertilizer; Petrochemicals; Offshore Oils; Gas Productions; Refineries and etc.
3. Steel pipes No. of main production:
ASTM A335 Grade P5, P9, P11, P12, P22, P91, P92
ASTM A106 Grade B, C
4. Dimensional Tolerance
| Pipe types | OD (mm) | Tolerance | WT (mm) | Tolerance |
| High Pressure Boiler Tube | 219~457 | ±1.0％ | ≤20 | -10% ~ +12.5% |
| 20~40 | -10% +10% | |||
| 457~1422 | ±0.9％ | ＞40~70 | -7％, +9％ | |
| ＞70~20 | -6％, +8％ |
5. Chemical Composition:
| High Pressure Boiler Tube Chemical Requirements | ||||||||||||
| Standard | Grade | UNS Designation | Composition, % | |||||||||
| C | Mn | P | S | Si | Cr | Mo | Ni | V | Others | |||
| ASTM A335 | P5 | K41545 | 0.15max | 0.30-0.60 | 0.025 | 0.025 | 0.50max | 4.00-6.00 | 0.45-0.65 | ... | ||
| P9 | S50400 | 0.15max | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 8.00-10.00 | 0.90-1.10 | ... | |||
| P11 | K11597 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 | ... | |||
| P12 | K11562 | 0.05-0.15 | 0.30-0.61 | 0.025 | 0.025 | 0.50 max | 0.80-1.25 | 0.44-0.65 | ... | |||
| P22 | K21590 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50 max | 1.90-2.60 | 0.87-1.13 | ... | |||
| P91 | K91560 | 0.08-0.12 | 0.30-0.60 | 0.02 | 0.01 | 0.20-0.50 | 8.00-9.50 | 0.85-1.05 | 0.4 | 0.18-0.25 | N 0.030-0.070 | |
| Al 0.02max | ||||||||||||
| Cb 0.06-0.10 | ||||||||||||
| Ti 0.01 max | ||||||||||||
| Zr 0.01max | ||||||||||||
| P92 | K92460 | 0.07-0.13 | 0.30-0.60 | 0.02 | 0.01 | 0.50 max | 8.50-9.50 | 0.30-0.60 | 0.4 | 0.15-0.25 | N 0.03-0.07 | |
| Al 0.02 max | ||||||||||||
| Cb 0.04-0.09 | ||||||||||||
| W 1.5-2.00 | ||||||||||||
| B 0.001-0.006 | ||||||||||||
| Ti 0.01 max | ||||||||||||
| Zr 0.01 max | ||||||||||||
| ASTM A106 | Grade B | 0.3 | 0.29–1.06 | 0.035 | 0.035 | 0.1 | 0.4 | 0.15 | 0.4 | 0.08 | ||
| Grade C | 0.35 | 0.29–1.06 | 0.035 | 0.035 | 0.1 | 0.4 | 0.15 | 0.4 | 0.08 | |||
6. Mechanical Properties
| Standards | Steel pipes No. | Tensile strength | Yield strength | Elongation | Impact energy | Hardness |
| (Mpa) | (Mpa) | (%) | (J) | |||
| ASTM A335 | P5 | ≥415 | ≥205 | ≥22 | ≥35 | ≤187HB |
| P9 | ≥415 | ≥205 | ≥22 | ≥35 | ||
| P11 | ≥415 | ≥205 | ≥22 | ≥35 | ≤163HB | |
| P12 | ≥415 | ≥220 | ≥22 | ≥35 | ≤163HB | |
| P22 | ≥415 | ≥205 | ≥22 | ≥35 | ≤163HB | |
| P91 | 585～760 | ≥415 | ≥20 | ≥35 | ≤250HB | |
| P92 | ≥620 | ≥440 | ≥20 | ≥35 | ≤250HB | |
| ASTM A106 | Grade B | ≥415 | ≥240 | ≥22 | ≥35 | / |
| Grade C | ≥485 | ≥275 | ≥20 | ≥35 | / |
7. Available Size Range:
| OD | Thickness | ||
| mm | inch | mm | SCH |
| 88.9~1422 | 3''~ 56'' | 2.11~140 | ≥SCH10 |
| *If the steel grades and size you are looking for are not listed above, please contact us for further information. | |||
