Processing
A139 GR.A ERW steel pipes, namely A139 GR.A Electric Resistance Welded (ERW) steel pipes. The processing of A139 GR.A ERW steel pipes begins as a coiled plate of steel with appropriate thickness and specific width to form a pipe that conforms to its relevant specification.
A139 GR.A ERW steel pipe chemical compositions, max(%):
Grade /Chemicals |
C |
Mn |
p |
S |
A139 GR.A |
0.25 |
1.00 |
0.035 |
0.035 |
A139 GR.A ERW steel pipe mechanical properties:
Grade /Mechanicals |
Tensile strength, min |
Yield strength, min |
Elongation |
||
psi |
Mpa |
psi |
Mpa |
(in 2’ or 5mm, min, % ) |
|
A139 GR.A |
48 |
330 |
30 |
205 |
35 |
A139 GR.A ERW steel pipe typical applications:
A139 GR.A ERW steel pipes are intend for conveying liquid, gas, or vapor. Note: the suitability of A139 GR.A ERW steel pipes for various purposes is somewhat dependent on its dimensions, properties, and conditions of service. For more information, please feel free to contact our Katalor sales team or engineer department.
A139 GR.A ERW steel pipe marking:
Each section of pipe shall be marked with the manufacturer’s distinguishing marking, the specification number, the grade of pipe, and other markings if required and agreed upon between the purchaser and the manufacturer.
A139 GR.A ERW steel pipe end finishing:
Pipe shall be furnished with an angle cut of 90° or beveled ends as specified. All burrs at the ends of pipe shall be removed. When pipe ends have to be beveled for the welding, the ends shall be beveled on the outside to an angle of 35° with a tolerance of ± 2½° and with a width of root face 1/16 ± 1/32.
A139 GR.A ERW steel pipes are accustomed to be under ASTM A139 standard, which covers A139 GR.A, A139 GR.B, A139 GR.C, A139 GR.D, A139 GR.E. All of these steel grade ERW pipes are available in our Katalor ex-stock. If you have any needs, feel free to contact us.
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