The mainproduction steel grades:
A192 SA192negotiated, but also supply other grades of steel.
Purpose:
With a minimumwall thickness for high pressure seamless carbon steel pipe Boiler andSuperheater
standards
ASTMA192 ---American Society of Mechanical Engineers standards
ASMESA192---American Society of Mechanical Engineers standards
Mechanicalproperties:
Standard |
Grade |
Tensile strength (MPa) |
Yield strength (MPa) |
Elongation (%) |
ASTMA192/ASMESA192 |
A192/SA192 |
≥325 |
≥180 |
≥35 |
Chemicalcomposition:
Standard |
Grade |
Chemical Composition |
|||||||||
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Cu |
Ni |
V |
||
ASTM A192/ASME SA192 |
A192 / SA192 |
0.06~0.18 |
≤0.25 |
0.27~0.63 |
≤0.035 |
≤0.035 |
|
/ |
/ |
/ |
/ |
Tolerance on dimension:
OD |
OD Tolerance |
WT Tolerance |
||
+ |
- |
+ |
- |
|
D < 1" |
0.1 |
0.1 |
20% |
0 |
1"≦ D ≦1 1/2" |
0.15 |
0.15 |
20% |
0 |
1 1/2" < D < 2" |
0.2 |
0.2 |
22% |
0 |
2"≦ D <2 1/2" |
0.25 |
0.25 |
22% |
0 |
2 1/2" ≦ D < 3" |
0.3 |
0.3 |
22% |
0 |
3"≦ D ≦4" |
0.38 |
0.38 |
22% |
0 |
4"< D ≦7 1/2" |
0.38 |
0.64 |
22% |
0 |
7 1/2"< D ≦ 9" |
0.38 |
1.14 |
22% |
0 |