A106 seamless carbon steel pipe
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China [CN]
a106 Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service
1, Steel No.
|
|
C(max)a |
Mn |
P(max) |
S(max) |
Si(min) |
Cu(max)b |
Ni(max)b |
Cr(max)b |
Mo(max)b |
V(max)b |
|
Grade A: |
0.25 |
0.95 |
0.05 |
0.045 |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 |
0.08 |
|
Grade B: |
0.3 |
1.2 |
0.05 |
0.045 |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 |
0.08 |
|
Grade C: |
0.3 |
1.2 |
0.05 |
0.045 |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 |
0.08 |
A For each reduction of 0.01 % below the specified carbon maximum, an increase of 0.06 % manganese above the specified maximum will be permitted up to a maximum of 1.35 %.
B These five elements combined shall not exceed 1 %.
2, Diameter & Tolerance:
NPS over in. (mm) Under in. (mm)
1/8 to 11/2, incl 1/64 (0.015) 0.40 1/64 (0.015) 0.40
Over 11/2 to 4, incl 1/32 (0.031) 0.79 1/32 (0.031) 0.79
Over 4 to 8, incl 1/16 (0.062) 1.59 1/32 (0.031) 0.79
Over 8 to 18, incl 3/32 (0.093) 2.38 1/32 (0.031) 0.79
Over 18 to 26, incl 1/8 (0.125) 3.18 1/32 (0.031)0.79
Over 26 to 34, incl 5/32 (0.156) 3.97 1/32 (0.031)0.79
Over 34 to 48, incl 3/16 (0.187) 4.76 1/32 (0.031) 0.79
3, Tensile Requirements
Grade AMinimum Yield: 30,000 PSI (205MPa) Minimum Tensile: 48,000 PSI (330MPa)
Grade BMinimum Yield: 35,000 PSI (240MPa) Minimum Tensile: 60,000 PSI (415MPa)
Grade CMinimum Yield: 40,000 PSI (275MPa) Minimum Tensile: 70,000 PSI (485MPa)
4, Wall Thickness & Tolerance:
Wall thickness: ScheduledWall Tolerance: +/- 12.5%
5,Common Uses:
- Pressure systems
- Mechanical components
- Structural applications
- Spreader bars
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