ASTM 335 seamless alloy steel pipe
ASTM A335 seamless alloy steel pipes are widely used in various industrial applications due to their excellent mechanical properties and ability to withstand high temperatures and pressures. Here’s a detailed introduction to ASTM A335 seamless alloy steel pipes
Chemical Composition
|
Grade
|
C
|
Mn
|
P
|
S
|
Si
|
Mo
|
|
P1
|
0.10-0.20
|
0.30-0.80
|
0.025
|
0.025
|
0.10-0.50
|
0.44-0.65
|
|
P2
|
0.10-0.20
|
0.30-0.61
|
0.025
|
0.025
|
0.10-0.30
|
0.44-0.65
|
|
P5
|
0.15max
|
0.30-0.60
|
0.025
|
0.025
|
0.50max
|
0.45-0.65
|
|
P5B
|
0.15max
|
0.30-0.60
|
0.025
|
0.025
|
1.00-2.00
|
0.45-0.65
|
|
P5C
|
0.12max
|
0.30-0.60
|
0.025
|
0.025
|
0.50max
|
0.45-0.65
|
|
P9
|
0.15max
|
0.30-0.60
|
0.025
|
0.025
|
0.25-1.00
|
0.90-1.10
|
|
P11
|
0.05-0.15
|
0.30-0.60
|
0.025
|
0.025
|
0.50-1.00
|
0.44-0.65
|
|
P12
|
0.05-0.15
|
0.30-0.61
|
0.025
|
0.025
|
0.50max
|
0.44-0.65
|
|
P15
|
0.05-0.15
|
0.30-0.60
|
0.025
|
0.025
|
1.15-1.65
|
0.44-0.65
|
|
P21
|
0.05-0.15
|
0.30-0.60
|
0.025
|
0.025
|
0.50max
|
0.80-1.06
|
|
P22
|
0.05-0.15
|
0.30-0.60
|
0.025
|
0.025
|
0.50max
|
0.87-1.13
|
|
P23
|
0.04-0.10
|
0.10-0.60
|
0.030max
|
0.010max
|
0.50max
|
0.05-1.30
|
Mechanical Properties
|
Mechanical properties
|
P1,P2
|
P12
|
P23
|
P91
|
P92,P11
|
P122
|
|
Tensile strength
|
380
|
415
|
510
|
585
|
620
|
620
|
|
Yield strength
|
205
|
220
|
400
|
415
|
440
|
400
|
Applications
ASTM A335 seamless alloy steel pipes are used in a variety of applications due to their high performance in extreme conditions. Common applications include:
Power Generation: Used in boilers, superheaters, and reheaters.
Petrochemical Industry: Employed in refineries and chemical plants for high-temperature and high-pressure services.
Oil and Gas Industry: Used in the transportation of oil and gas where durability and reliability are critical.
Industrial Machinery: Used in the manufacturing of machinery that operates under high stress and temperature conditions.
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