Standard specification for technical delivery conditions of seamless carbon steel pipe, suitable for high temperature service.
Available Steel Grade: Gr.A, Gr.B, Gr.C.
Size: OD 6.0-273.1mm, WT 0.5-50mm, Max.Length 13500mm.
Grade and Chemical Composition(%)
|
Grade
|
C≤
|
Mn
|
P≤
|
S≤
|
Si≥
|
Cr≤
|
Cu≤
|
Mo≤
|
Ni≤
|
V≤
|
|
A
|
0.25
|
0.27-0.93
|
0.035
|
0.035
|
0.1
|
0.4
|
0.4
|
0.15
|
0.4
|
0.08
|
|
B
|
0.30
|
0.29-1.06
|
0.035
|
0.035
|
0.1
|
0.4
|
0.4
|
0.15
|
0.4
|
0.08
|
|
C
|
0.35
|
0.29-1.06
|
0.035
|
0.035
|
0.1
|
0.4
|
0.4
|
0.15
|
0.4
|
0.08
|
Mechanical Properties:
|
Grade
|
Rm Mpa Tensile Strength(Mpa)
|
Yield Point (Mpa)
|
Elongation
(%)
|
Delivery Condition
|
|
A
|
≥330
|
≥205
|
20
|
Annealed
|
|
B
|
≥415
|
≥240
|
20
|
Annealed
|
|
C
|
≥485
|
≥275
|
20
|
Annealed
|