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Welded Alloy Steel Pipe

Product: alloy pipe, alloy steel pipe, welded steel pipe, welded alloy steel pipe
Application:   In Petroleum, Aerospace, Chemical, Power, Boilers, Military Industry
Size:  OD: 1/8'' ~ 26''
 WT: SCH 30, 30, 40, 60, 80, 120, 140, 160, XS, XXS, STD
 LENGTH: Single Random, Double Random, Cut Length max to 23m
GB/T 3091 Q195/Q215/Q235/Q345, BS 1387, EN 39, EN 1139 S235JR/S275JR, ASTM A53 GR. A/B/C, JIS G3444 STK 400/STK 500
Plain End, Beveled End, Thread End
Zinc Coating
 10~50 g/m2

Bundled with Hemp Rope/In Bulk


Alloy Steel Pipe Types

Out diameter

Wall thickness


Alloy Steel Welded Pipe (in Stock + Custom Sizes)

5.0mm ~ 1219.2mm

1.0 ~ 15.0 mm

Upto 6 Meters

Alloy Steel Seamless Pipe (Custom Sizes)

5.0mm ~ 203.2mm

As per requirement

Upto 6 Meters

NB Sizes (in stock)

1/8” ~ 8”

SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160

Upto 6 Meters

  ASTM A335 Welded Pipes Mechanical Properties  

Alloy Steel








0.05 – 0.15

1.00 – 1.50

0.30 – 0.60

0.44 – 0.65

0.025 max

0.025 max

0.50 – 1.00

  ASTM A335 Welded Pipes Yield Strengths  

Tensile Strength, MPa

Yield Strength, MPa

Elongation, %

415 min

205 min

30 min

Alloy Steel ERW Pipes Chemical Properties

  • Material Specifications: ASTM A691
  • Grades: 1-1/4 CR, 2-1 1/4 CR, 5 CR, 9 CR 91
  • Thickness (MM): upto 30 mm Thik Alloy Steel Welded Pipes
  • Size – Dia(mm): upto 24″ NB Alloy Steel Welded Pipes & Tubes

  Our factory


There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are two principles that are vital for any method to work prevent rusting and Sea transportation security.Our packing can meet any needs of the customers.

  • Plastic caps plugged at the two sides of pipe ends
  • Should be avoided by the steel strapping and transport damage
  • Bundled signs should be uniform and consistent
  • The same bundle(batch) of steel pipe should be came from the same furnace.
  • The steel pipe has the same furnace number, the same steel grade, the same specifications.

Looking forward to your favourable inquiry!

  Manufacture Process

If you have any inquiries and questions, please contact United Steel Industry Co.,Ltd

at any time. Thanks in advance. Welcome! Email :Sales@united-steel.com

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