Changzhou Joyruns Steel Tube CO.,LTD
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ASTM A335 P11 Alloy seamless steel boiler tube
ASTM A335 P11 Pipe is a chromium molybdenum alloy made pipe. It is used in high-temperature services.
P11 Widely used in the energy sector, power plants, boilers, superheaters, chemical & fertilizer plants, a wide range of ALLOY STEEL SEAMLESS PIPES are available with us ex-stock.
Specifications:
Chemical Composition(%):
| Grade | UNS Designation | Composition, % | |||||||
| Carbon | Manganese | Phosphorus, | Sulfur | Silicon | Chromium | Molybdenum | Others | ||
| max | max | ||||||||
| P1 | K11522 | 0.10–0.20 | 0.30–0.80 | 0.025 | 0.025 | 0.10–0.50 | --- | 0.44–0.65 | --- |
| P2 | K11547 | 0.10–0.20 | 0.30–0.61 | 0.025 | 0.025 | 0.10–0.30 | 0.50–0.81 | 0.44–0.65 | --- |
| P5 | K41545 | 0.15 max | 0.30–0.60 | 0.025 | 0.025 | 0.50 max | 4.00–6.00 | 0.45–0.65 | --- |
| P9 | S50400 | 0.15 max | 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 | --- |
| P15 | K11578 | 0.05–0.15 | 0.30–0.60 | 0.025 | 0.025 | 1.15–1.65 | --- | 0.44–0.65 | --- |
| P21 | K31545 | 0.05–0.15 | 0.30–0.60 | 0.025 | 0.025 | 0.50 max | 2.65–3.35 | 0.80–1.06 | --- |
| 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 | --- |
| P23 | K41650 | 0.04–0.10 | 0.10–0.60 | 0.03 | 0.01 | 0.50 max | 1.90–2.60 | 0.05–0.30 | V 0.20–0.30 |
| Cb 0.02–0.08 | |||||||||
| B 0.0005–0.006 | |||||||||
| N 0.030 max | |||||||||
| Al 0.030 max | |||||||||
| W 1.45–1.75 | |||||||||
| 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 | V 0.18–0.25 |
| N 0.030–0.070 | |||||||||
| Ni 0.40 max | |||||||||
| Al 0.04 max | |||||||||
| Cb 0.06–0.10 | |||||||||
| 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 | V 0.15–0.25 |
| N 0.03–0.07 | |||||||||
| Ni 0.40 max | |||||||||
| Al 0.04 max | |||||||||
| Cb 0.04–0.09 | |||||||||
| W 1.5–2.00 | |||||||||
| B 0.001–0.006 | |||||||||
Mechanical Properties:
|
| Grade P11, P22, P5, P9 | Grade P91 | Grade P92 |
| Tensile strength, min, (MPa) | 415 | 585 | 620 |
| Yield strength, min, (MPa) | 205 | 415 | 440 |
| Elongation, min, (%), L/T | 30/20 | 20/… | 20/… |
|
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| Heat Treatment | A / N+T | N+T / Q+T | N+T |
Process
