A106 Seamless Carbon Steel Pipe
ASTM Specification A106 covers seamless carbon steel nominal wall pipe for high temperature service and is suitable for bending, flanging and similar forming operations. A106 seamless pipe includes A106-A low carbon seamless pipe,A106-B carbon steel Round tube.ASTM steel pipe A106A corresponding to Chinese standard GB8163 is made of 10# carbon steel pipe, and A106B corresponding to Chinese standard GB8163 is made of 20#.
A106 round steel pipe has a high carbon and manganese content, so it has good yield strength, good plasticity and toughness. Moreover, the steel production process is simple and has good hot and cold workability. It is one of the commonly used materials. A106 seamless carbon steel pipe is used in industrial applications involving high temperatures, including process piping, boiling plants, compression stations and refineries.
A106 round steel pipe has a high carbon and manganese content, so it has good yield strength, good plasticity and toughness. Moreover, the steel production process is simple and has good hot and cold workability. It is one of the commonly used materials.
A106 seamless carbon steel pipe is therefore used in industrial applications involving high temperatures, including process piping, boiling plants, compression stations and refineries.
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A106 Carbon steel seamless tube product details
| tandards | ASTM A 106 |
| Grade | A, B, C |
| O.D. | NPS 1/8 inch to NPS 20 inch, 10.13mm to 1219mm |
| W.T. | SCH 10, SCH 20, SCH STD, SCH 40, SCH 80, to SCH160, SCHXX; 1.24mm to 1 inch, 25.4mm |
| Length | 20ft to 40ft, 5.8m to 13m, single random length 16 to 22ft, 4.8 to 6.7m, double random length average 35ft 10.7m |
| End processing | plain end, bevel, thread |
| Coatings | black paint, clearcoat, epoxy coating, polyethylene coating, FBE and 3PE, CRA cladding and lining |
A106 carbon steel tube Chemical Requirements
| Grade A | Grade B | Grade C | |
| Carbon | 0.25 | 0.30* | 0.35* |
| Manganese | 0.27 to 0.93 | *0.29 to 1.06 | *0.29 to 1.06 |
| Phosphorous | 0.035 | 0.035 | 0.035 |
| Sulfur | 0.035 | 0.035 | 0.035 |
| Silicon | 0.10 | 0.10 | 0.10 |
| Chrome | 0.40 | 0.40 | 0.40 |
| Copper | 0.40 | 0.40 | 0.40 |
| Molybdenum | 0.15 | 0.15 | 0.15 |
| Nickel | 0.40 | 0.40 | 0.40 |
| Vanadium | 0.08 | 0.08 | 0.08 |
A106 Seamless boiler tube Tensile Requirements
| Seamless | |||
| Grade A | Grade B | Grade C | |
| Tensile Strength, min., psi | 48,000 | 60,000 | 70,000 |
| Yield Strength, min., psi | 30,000 | 35,000 | 40,000 |
Testing Requirements for seamless A106 carbon steel pipe
Hydrostatic Testing: Inspection test pressures produce a stress in the pipe wall equal to 60% of specified minimum yield strength (SMYS) at room temperature. Maximum pressures are not to exceed 2,500 psi for NPS 3 and under, and 2,800 psi for the larger sizes. Pressure is maintained for no less than 5 seconds.
Mechanical Tests:
Tensile Test: Either transverse or longitudinal are acceptable for NPS 8 and larger
Tensile tests smaller than NPS 8: Longitudinal testing only
Flattening Test: NPS 2 and larger
Bending Test (cold): NPS 2 and under
| Degree of Bend | Diameter of Mandrel | |
|---|---|---|
| For normal A106 uses | 90 | 12x nominal diameter of pipe |
| For close coiling | 180 | 8x nominal diameter of pipe |
A106 Medium Seamless Carbon Steel Pipe
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