A139 specification covers five grades of electric-fusion(arc)-welded straight-seam or helical-seam steel pipe. Pipe of NPS 4 and larger with nominal (average) wall thickness of 1.0 in.(25.4 mm) and less are covered. Listing of standardized dimensions are for reference.
A139 grade A chemical composition
Element |
Carbon |
Manganese |
Phosphorus |
Sulfur |
|
Grade A |
0.25 |
1.00 |
0.035 |
0.035 |
A139 grade A welded steel pipe/tube mechanical properties
|
|
Grade A |
|
Tensile strength, min, ksi (MPa) |
48 (330) |
|
Yield strength, min, ksi (MPa) |
30 (205) |
|
Elongation in 2 in. or 50 mm, min, %: |
|
|
Basic minimum elongation for walls5 |
35 |
|
thickness, longitudinal strip tests |
|
|
For longitudinal strips tests, a deduction for each1 |
1.75 |
|
decrease in wall thickness below5 |
|
|
Elongation in 8 in. (203.2 mm), in min, % |
1 500 000 specified tensile strength (psi) |
A139 grade A welded steel pipe Specifications or Size:Out Diameter 12.5mm—824mm ；Wall Thickness : 2mm—100mm；Length: Random length, Fixed Length, SRL, DRL
Heat treatment:Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
A139 grade A welded steel pipe Surface treatment:PVC,black and color painting；Transparent oil,anti-rust oil；According to clients requirement
Finished goods condition:hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Payment : TT, LC,DP are all ok
Trade Terms : FOB / CFR /CIF
Delivery period: according to the material ,the standard, and the quantity of the contract.
Katalor enterprises will use our professional services, best quality and competitive price to fulfill each customers needs in A139 grade A welded steel pipe. More information about A139 grade A welded steel pipe price, please feel free to contact us, we will always do our best to help you.
