Specification :

Seamless ferritic alloy-steel pipe for high-temperature service

Commodity: Seamless ferritic alloy-steel pipe for high-temperature service

Material: ASTM A335

1) Pipe Diameter: 1/ 2" -12"
2) Thickness: 2mm-20mm
3) Steel grade: P1 P2 P5 P11 P12 P91

4) Surface: oiled or black painted to prevent rust
5) Marking: As per customer' s requirement
6) Packing: Bundles or seaworthy wooden cases

Chemical properties ( % )

Material
C
Si
Mn
P
S
Mo
Cr

%
%
%
%
max
%
max

A 335 Grade P1
0, 10 - 0, 20
0, 10 - 0, 50
0, 30 - 0, 80
0, 025
0, 025
0, 44-0, 65

A 335 Grade P5
max. 0, 15
max. 0, 50
0, 30 - 0, 60
0, 025
0, 025
0, 45-0, 65
4, 00-6, 00

A 335 Grade P11
0, 05 - 0, 15
0, 50 - 1, 00
0, 30 - 0, 60
0, 025
0, 025
0, 44-0, 65
1, 00-1, 50

A 335 Grade P12
0, 05 - 0, 15
max. 0, 50
0, 30 - 0, 61
0, 025
0, 025
0, 44-0, 65
0, 80-1, 25

A 335 Grade P22
0, 05 - 0, 15
max. 0, 50
0, 30 - 0, 60
0, 025
0, 025
0, 87-1, 13
1, 90-2, 60

Mechanical properties

Material
Tensile

N/ mm2
Strength

Min. N/ mm2
Yield

% min.

A 335 Grade P1
min. 380
205
30

A 335 Grade P5
min. 415
205
30

A 335 Grade P11
min. 415
205
30

A 335 Grade P12
min. 415
205
30

A 335 Grade P22
min. 415
205
30