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About ASTM A106 Steel Pipe Standard
ASTM A106 Gr B standard seamless pressure pipe (also known as ASME SA106 pipe) is commonly used in the construction of oil and gas refineries, power plants, petrochemical plants, boilers, and ships where the piping must transport fluids and gases that exhibit higher temperatures and pressure levels.
- OD: 48mm-720 mm
- WT: 4mm~58mm
- Length: 6m-12m or as required
- Application: Hydraulic system pipeline pipe, pipe for boiler project, construction structure, etc.
- Supplementary Technology: Plain or threaded with socket or beveled with plastic caps, hydraulic testing, eddy current, Infrared test.
- Surface: Bared or painted, galvanized or with oiled or client option.
- Delivery state: Hot Rolled, Cold Drawn
- Steel Grade: Grade A, Grade B, Grade C
ASTM A106 standard specification PFD download
Product Scope:
A106 steel pipe includes 3 steel grades (Grade A, Grade B, Grade C) These pipes are suitable for welding, bending, flanging, and similar forming operations. Mechanical testing of the specimens shall include tensile, bending, flattening, hydrostatic and nondestructive electric tests. Among 3 steel grades, ASTM A106 grade B is one most commonly used steel grade.
ASTM A106 Grade A and Grade B are produced in wide sizes and states, A106 gr.b contains higher carbon and manganese contents, its maximum carbon content is 0.23%, it shall be permissible to furnish pipe with other dimensions (from SCH10, SCH20, SCH30 to SCH100, SCH120, SCH160).
ASTM A106 Chemical Composition
| ASTM A106 Steel Grade | C, max.% | Mn % | P, max | S, max | Si, min | Cr, max | Cu, max | Mo, max | Ni, max | V, max |
|---|---|---|---|---|---|---|---|---|---|---|
| Grade A | 0.25 | 0.27 - 0.93 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
| Grade B | 0.30 | 0.29 - 1.06 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
| Grade C | 0.35 | 0.29 - 1.06 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
ASTM A106 Mechanical Property
| ASTM A106 Steel Grade | Tenssile Test MPa or N/mm2 | Remarks (Similar to JIS) | |
|---|---|---|---|
| MIn. Yield Point | Tensile Strength | ||
| Grade A | 205 | 330Min | (STPG370) |
| Grade B | 240 | 415Min | (STPG410) |
| Grade C | 275 | 485Min | (STPG480) |
If you are interested in buying steel pipe products, contact us now for the latest price or check the following table for equivalent steel grade of ASTM A106.
ASTM A106 Equivalent steel grade
| Specification | Mechanical Properties | Grade A | Grade B | Grade C |
|---|---|---|---|---|
| ASTM A53 | Tenside strength, min, psi (MPa) | 48000(330) | 60000(415) | |
| Yield strength, min, psi (MPa) | 30000(205) | 35000(240) | ||
| ASTM A106 | Tenside strength, min, psi (MPa) | 48000(330) | 60000(415) | 70000(485) |
| Yield strength, min, psi (MPa) | 30000(205) | 35000(240) | 40000(275) |
Nominal wall thickness for ASTM A106(Seamless and welded steel pipes)
| NPS | Outside Diameter | ASTM A106 Grade B Pipe Schedule | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (INCH) | (INCH) | SCH 10 | SCH 20 | SCH 30 | SCH STD | SCH 40 | SCH 60 | SCH XS | SCH 80 | SCH 100 | SCH 120 | SCH 140 | SCH 160 | SCH XXS |
| Wall Thickness (in) | ||||||||||||||
| 1.8 | 0.405 | 0.068 | 0.068 | 0.095 | 0.095 | |||||||||
| 1.4 | 0.54 | 0.088 | 0.088 | 0.119 | 0.119 | |||||||||
| 3.8 | 0.675 | 0.091 | 0.091 | 0.126 | 0.126 | |||||||||
| 1.2 | 0.84 | 0.109 | 0.109 | 0.147 | 0.147 | 0.187 | 0.294 | |||||||
| 3.4 | 1.05 | 0.113 | 0.113 | 0.154 | 0.154 | 0.219 | 0.308 | |||||||
| 1 | 1.315 | 0.133 | 0.133 | 0.179 | 0.179 | 0.25 | 0.358 | |||||||
| 1.25 | 1.66 | 0.14 | 0.14 | 0.191 | 0.191 | 0.25 | 0.382 | |||||||
| 1.5 | 1.9 | 0.145 | 0.145 | 0.2 | 0.2 | 0.281 | 0.4 | |||||||
| 2 | 2.375 | 0.154 | 0.154 | 0.218 | 0.218 | 0.344 | 0.436 | |||||||
| 2.5 | 2.875 | 0.203 | 0.203 | 0.276 | 0.276 | 0.375 | 0.552 | |||||||
| 3 | 3.5 | 0.216 | 0.216 | 0.3 | 0.3 | 0.438 | 0.6 | |||||||
| 3.5 | 4 | 0.226 | 0.226 | 0.318 | 0.318 | |||||||||
| 4 | 4.5 | 0.237 | 0.237 | 0.337 | 0.337 | 0.438 | 0.531 | 0.674 | ||||||
| 5 | 5.563 | 0.258 | 0.258 | 0.375 | 0.375 | 0.5 | 0.625 | 0.75 | ||||||
| 6 | 6.625 | 0.28 | 0.28 | 0.432 | 0.432 | 0.562 | 0.719 | 0.864 | ||||||
| 8 | 8.625 | 0.25 | 0.277 | 0.322 | 0.322 | 0.406 | 0.5 | 0.5 | 0.594 | 0.719 | 0.812 | 0.906 | 0.875 | |
| 10 | 10.75 | 0.25 | 0.307 | 0.365 | 0.365 | 0.5 | 0.5 | 0.594 | 0.719 | 0.844 | 1 | 1.125 | 1 | |
| 12 | 12.75 | 0.25 | 0.33 | 0.375 | 0.406 | 0.562 | 0.5 | 0.688 | 0.844 | 1 | 1.125 | 1.312 | 1 | |
| 14 | 14 | 0.25 | 0.312 | 0.375 | 0.375 | 0.438 | 0.594 | 0.5 | 0.75 | 0.938 | 1.094 | 1.25 | 1.406 | |
| 16 | 16 | 0.25 | 0.312 | 0.375 | 0.375 | 0.5 | 0.656 | 0.5 | 0.844 | 1.031 | 1.219 | 1.438 | 1.594 | |
| 18 | 18 | 0.25 | 0.312 | 0.438 | 0.375 | 0.562 | 0.75 | 0.5 | 0.938 | 1.156 | 1.375 | 1.562 | 1.781 | |
| 20 | 20 | 0.25 | 0.375 | 0.5 | 0.375 | 0.594 | 0.812 | 0.5 | 1.031 | 1.281 | 1.5 | 1.75 | 1.969 | |
| 22 | 22 | 0.25 | 0.375 | 0.5 | 0.375 | 0.875 | 0.5 | 1.125 | 1.375 | 1.625 | 1.875 | 2.125 | ||
| 24 | 24 | 0.25 | 0.375 | 0.562 | 0.375 | 0.688 | 0.969 | 0.5 | 1.219 | 1.531 | 1.812 | 2.062 | 2.344 | |
| 30 | 30 | 0.312 | 0.5 | 0.625 | 0.375 | 0.5 | ||||||||
| 32 | 32 | 0.312 | 0.5 | 0.625 | 0.375 | 0.688 | ||||||||
| 34 | 34 | 0.312 | 0.5 | 0.625 | 0.375 | 0.688 | ||||||||
| 36 | 36 | 0.312 | 0.5 | 0.625 | 0.375 | 0.75 | ||||||||
| 42 | 42 | 0.5 | 0.625 | 0.375 | 0.75 | |||||||||
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