ASTM A355 Seamless Alloy Steel Pipe
Date:2015-12-05 Tag:ASTM A355 Seamless Alloy Steel Pipe
Astm a335 standard specication for seamless ferritic alloy-steel pipe for high-temperature service. This specication covers nominal(average) wall seam-less alloy-steel pipe intended for high-temperatureservice.Pipe ordered to this specication shall be suitable for bending,anging(vanstoning),and similar forming operations,and for fusion welding.Selection will depend upon design,service conditions,mechanical properties,andhigh-temperature char-acteristics.
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
|
|
