ASTM A106/ASME SA106 GR.B Carbon Steel Seamless Cold Drawn Boiler Tube
ASTM A106 / ASME SA106 GR.B Carbon Steel Seamless Boiler Tube
Overview
ASTM A106 Grade B Pipe (also known as ASME SA106 GR.B pipes) is used in power plants, boilers, petrochemical plants, oil and gas refineries, and ships where the piping must transport hot or cold liquids and gases under high pressures and temperatures. A106 GR. B Carbon Steel Seamless Pipes, A106 Gr B Sch 40 pipe, ASTM A106 Grade B Pipe Suppliers is available in various weights, sizes, and black and galvanized grades both seamless and electric welded. ASTM A106 Grade B Pipe sizes, less than 2" is it normally delivered as a cold drawn product. 2" and up are usually hot finished.
For ASTM A106 seamless steel pipe could transport fluids or gasses at high temperature and pressure levels, with 3 grades A, B, C, most common used ASTM A106 Grade B is widely used in the projects of oil and gas refineries, power plants, petrochemical plants, boilers.
Chemical Composition of ASTM A106 GR.B
| Grade | C | Mn | Si | S | P | Ni | Mo | Cr | |
| Gr.B | Min | 0.29 | 0.10 | ||||||
| Max | 0.30 | 1.06 | 0.035 | 0.035 | 0.40 | 0.15 | 0.40 |
Mechanical Properies of ASTM A106 GR.B
| Grade | Tensile Str psi (Mpa) | Yield Str psi (Mpa) |
| Gr.B | ≥60000 [415] | ≥35000 [240] |
Outside Diameter Tolerance of ASTM A106
| Seamless, Cold-Finished Tubes | Type | Permissible Variations In mm | |
| NPS range(Incl) | Under(-) | Over(+) | |
| 1/8~1 1/2 | SMLS | 0.4mm | 0.4mm |
| 1 1/2~4 | SMLS | 0.8mm | 0.8mm |
| 4~8 | SMLS | 1.6mm | 0.8mm |
| 8~18 | SMLS | 2.4mm | 0.8mm |
| 18~26 | SMLS | 3.2mm | 0.8mm |
| 26~34 | SMLS | 4.0mm | 0.8mm |
| 34~48 | SMLS | 4.8mm | 0.8mm |
Uses&Application:
Petrochemical
Chemical
Oil and Gas
Pulp & Paper
Power Plant
Food Processing
Pharmaceuticals
Energy Industry
Aerospace Industry
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