Boiler Tubes-ASTM A192/ASME SA192
Standard Specification for Seamless Carbon Steel Boiler Tubes for High-Pressure Service.
Application: For seamless crabon steel boiler and superheater tubes for high-pressure service.
Available Steel Grade: A192.
Size: OD 1/2~7in.( 12.7~177.8mm), WT 0.085~1.000in.(2.2~25.4mm), Max.Length 13500mm.
Grade and Chemical Composition(%):
|
Chemical Composition |
C |
Mn |
P≤ |
S≤ |
Si≤ |
|
|
0.06-0.18 |
0.27-0.63 |
0.035 |
0.035 |
0.25 |
||
Dimension Tolerances acc.to SA-450/SA-450M):
|
OD Inch(mm) |
+ |
- |
|
Under 1(25.4) |
0.10mm |
0.10mm |
|
1-1.1/2(25.4-38.1) incl |
0.15mm |
0.15mm |
|
1.1/2-2(38.1-50.8) excl |
0.20mm |
0.20mm |
|
2-2.1/2(50.8-63.5) excl |
0.25mm |
0.25mm |
|
2.1/2-3(63.5-76.2) excl |
0.30mm |
0.30mm |
|
3-4(76.2-101.6) incl |
0.38mm |
0.38mm |
|
4-7.1/2(101.6-190.5) incl |
0.38mm |
0.64mm |
|
7.1/2-9(190.5-228.6) incl |
0.38mm |
1.14mm |
|
|
||
|
WT Inch(mm) |
+ |
- |
|
≤1.1/2(38.1) |
20% |
0 |
|
>1.1/2(38.1) |
22% |
0 |
Hardness
|
Brinell Hardness Number WT≥0.200Inch(5.1mm) |
Rockwell Hardness Number WT≤0.200Inch(5.1mm) |
|
137HRB |
77HRB |