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A335 P22 Pipes

A335 P22 Pipes

Standard: ASTM A335;
Material: P22;
OD: 88.9~1422mm;
Application: thermal power plant, nuclear power plant;

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Product Details

A335 P22 Pipes

A355 P22 alloy pipe is in the American standard ASTM A355,It has high thermal performance, with the same temperature(580)The creep rupture strength and the allowable stress even more than 9Cr-1Mo steel, It also has good processing performance and better stress rupture plasticity, Therefore, it is widely used in the harsh working environment, such as Thermal power, nuclear power and various heating pipes and high pressure vessels in hydrogen equipment.

1. Standards:
ASTM A335 Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service


2. Application:
For high pressure boiler and steam header pipes; petrochemical industry pipes; thermal power plant; nuclear power plant; USC boiler.


3. Chemical Requirements

Chemical Requirements



Composition, %
P22K215900.05-0.150.30-0.600.0250.0250.50 max1.90-2.600.87-1.13...


4. Available Size Range

88.9~14223''~ 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.


5. Tensile Requirements

Tensile Strength min.: 60ksi / 415MPa

Yield Strength min.: 30ks / 205MPa


6. Inspection & Test

Chemical composition, mechanical properties ( tensile strength, yield strength, elongation, flaring, flattening, bending, hardness, impact test), surface and dimension, NDE, hydrostatic test.


7. Supplementary Requirements

S1. Product Analysis

S2. Transverse Tension Tests

S3. Flattening Test

S4. Metal Structure and Etching Tests

S5. Photomicrographs

S6. Photomicrographs for Individual Pieces



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