ASTM A335 Grade P11 Seamless Pipe is a chromium-molybdenum alloy steel pipe designed for high-temperature service. It offers excellent creep strength, oxidation resistance, and durability under elevated temperatures up to 595°C (1100°F). Widely used in refineries, power plants, and chemical processing industries, it is ideal for high-pressure piping and heat exchanger systems.
- Alloy Seamless tube, Seamless Pipe
Grade P11 Seamless Alloy Steel Pipe ASTM A335
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Product Detail
Chemical Component
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Product Name:
Grade P11 Seamless Alloy Steel Pipe ASTM A335
Standard:
ASTM A335; ASME B36.10M; ASTM A1016
Grade:
P11
Thickness:
4.0-70mm
Section Shape:
Round
Outer Diameter:
73-1066mm
Place of Origin:
Baotou, China(Mainland)
Usage:
For high pressure condition
Surface Treatment:
Hot Rolled
Tolerance:
OD: ±0.4mm WT: ±10%
End:
Plain, beveled, or customized
End Protector:
Plastic pipe caps,iron protector or customized
length:
6-12m or customized
Brand:
Baotou steel
Delivery Time:
Normally within 30-45 days and according to the quantity.
Chemical Component（ASTM A335）
| Grade | Type | C | Mn | Mo | Cr | Ni | Cu | P | S | Si | ||||
| Min | Max | Min | Max | Min | Max | Min | Max | Max | Max | Max | Max | Max | ||
| P11 | – | 0.05 | 0.15 | 0.30 | 0.60 | 0.44 | 0.65 | 1.00 | 1.50 | – | – | 0.025 | 0.025 | 1.00 |
Mechanical Performance（ASTM A335）
| Grade | Type | Total under load Elongation % | Yield Strength | Tensile Strength | Hardness | Specified OD
mm | Allowable hardness Variation | ||
| Min | Max | Min | HRC | HBW | HRC | ||||
| P11 | – | 22 | 205 | – | 415 | – | – | – | – |
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