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ASTM A139 Covers two grades (A and B) of electric-fusion (arc)-welded straight-seam or spiral-seam pipe, 4 inch and over, wall thicknesses up to 5/8 inch inclusive. Pipe intended for conveying liquid, gas, or vapor.
This specification covers five grades of electric-fusion (arc)-welded straight-seam or spiral-seam steel pipe in 4" to 92" inclusive with wall thickness up to 1 " inclusive.
Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of this specification and the grades of steel of the manufactured pipes. The pipe is intended for conveying liquid, gas, or vapor.
Standard specification for straight seam or spiralweld casing pipe
Outside Diameter: 1/8 – 26 (Nominal)
OD Tolerance: +/- 1%
Wall Tolerance: +/- 12.5%
Mass: +10% -5%
ASTM A139 Welded Pipes Weight
The weight of any length of pipe shall not vary more than 10% over the specified weight.
The weight of any length of pipe shall not vary more than 5% under the specified weight when the specified wall thickness is 0.188" or less or more than 5.5% under when the wall thickness is greater than 0.188".
ASTM A139 Welded Pipes Thickness
The minimum wall thickness at any point shall be not more than 12.5% under the nominal wall thickness.
ASTM A139 Welded Pipes Circumference
The pipe shall be substantially round. The outside circumference of the pipe shall not vary more than 1.0%, but not exceeding ¾ in. from the nominal outside circumference based upon the diameter specified, except that the circumference at ends shall be sized, if necessary, to meet the requirements of Section 15.
ASTM A139 Welded Pipes Straightness
Finished pipe shall be commercially straight. When specific straightness requirements are desired, the order should so state and be agreed upon between the purchaser and the manufacturer.
| C | Mn | P | S | |
| Grade A: | 0.25 | 1 | 0.035 | 0.035 |
| Grade B: | 0.26 | 1 | 0.035 | 0.035 |
| Grade C: | 0.28 | 1.2 | 0.035 | 0.035 |
| Grade D: | 0.3 | 1.3 | 0.035 | 0.035 |
| Grade E: | 0.3 | 1.4 | 0.035 | 0.035 |
| Element | Minimum Yield | Minimum Tensile |
| Grade A | 30,000 PSI | 48,000 PSI |
| Grade B | 35,000 PSI | 60,000 PSI |
| Grade C | 40,000 PSI | 70,000 PSI |
| Grade D | 42,000 PSI | 60,000 PSI |
| Grade E | 52,000 PSI | 66,000 PSI |
| Heat Exchanger Tubes & Condenser Tubes Grades | SA139 Pipes & Tubes / A139 Pipes & Tubes |
|---|---|
| Type | Welded & EFW SA139 & A139 Pipes & Tubes |
| Length | Double Random & Required Length, Single Random, & Custom Size Available |
| Shape/Form | Round Pipes & Tubes, Hydraulic Tubes, Square / Rectangular Pipes & Tubes Coiled Tubes, “U” Shape Pipes & Tubes. |
| Pipes & Tubes End | Plain End, Beveled End, Treaded Protected With Plastic Caps |
| Coating Of SA139 & A139 Tubes | Anti-Corrosion Oil, Galvanised Finish, Black Painting, Finish as per Customer Requirements |
| SIZE | 4″ To 36″ |
| Origin | Indian Origin, Japanese Origin, US Origin, Ukraine Origin, Russian Origin, Korean Origin, European Origin |
| Grade | Grade A, Grade B, Grade C, Grade D, Grade E |
| Schedule | 5, 10, 20, 30, 40, 60, 80, 100, 120, 140, 160, XS, XXS, STD |
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Liaocheng Economic and Technological Development Zone, Shandong Province, China
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