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Seamless Alloy Steel Tube


Product: alloy tube, alloy steel tube, seamless alloy steel tube
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
Standard
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
End
Plain End, Beveled End, Thread End
Zinc Coating
 10~50 g/m2
Packing

Bundled with Hemp Rope/In Bulk



   Specification

Product

SEAMLESS / ERW / SAW ALLOY STEEL PIPE

Dimension

6 mm - 1080 mm

Thickness

1mm - 135 mm

Length

3 m - 12 m or according to the requirements of clients

Standard

ASTM GB DIN

Steel grade

A106/53/179/214/192/210 A/B/C

ST37.2/35.4/35.8/52/52.3/52.4/42/45

10# 20# 45#

P2, P12, P11, P22, P5, P9, P91 

T2, T11,T5,T9,T22, 4140, 12CrMo, 15CrMo, 12Cr2Mo, 1Cr5Mo, 2CrMo4, 1Cr9Mo, 10CrMo910, etc.  

Trade terms

FOB/CIF/CFR

Payment terms

T/T, L/C

Delivery port

Tianjin, China

Delivery time

10 or according to the real quantity of the tubes

 

 

Surface treatment

Black painting

Varnish painting

3PE

Hot galvanized

or other coating according to your requirements

Bare tube

End of tubes

Beveled, plain, thread, plastic caps

Inspection

Ultrasonic examination, eddy inspection, hydrosttic testing etc.

Package

Bundles, lossen or according to your requirements

Certificate

API 5L/5CT, ISO, PED etc.

Application

Alloy steel seamless pipe is ideally suitable for chemical, petrochemicals and other energy-related applications. It has characteristics of high corrosion resistance and can be used in a wide range of industrial sectors.

- Chemical industries

- Petrochemical industries

- Energy-related applications


   Chemical  Composition

C, %

Mn, %

P, %

S, %

Si, %

Cr, %

Mo, %

0.05-0.15

0.30-0.60

0.025 max

0.025 max

0.50-1.00

1.00-1.50

0.44-0.65

  Yield Strength

Tensile Strength, MPa

Yield Strength, MPa

Elongation, %

415 min

205 min

30 min


  Outside Diameter & Tolerance

ASTM A450

Hot rolled

Outside Diameter, mm

Tolerance, mm

OD≤101.6

+0.4/-0.8

101.6<OD≤190.5

+0.4/-1.2

190.5<OD≤228.6

+0.4/-1.6

Cold Drawn

Outside Diameter, mm

Tolerance, mm

OD<25.4

±0.10

25.4≤OD≤38.1

±0.15

38.1<OD<50.8

±0.20

50.8≤OD<63.5

±0.25

63.5≤OD<76.2

±0.30

76.2≤OD≤101.6

±0.38

101.6<OD≤190.5

+0.38/-0.64

190.5<OD≤228.6

+0.38/-1.14

ASTM A530 & ASTM A335

NPS

Outside Diameter, inch

Tolerance, mm

1/8≤OD≤1-1/2

±0.40

1-1/2<OD≤4

±0.79

4<OD≤8

+1.59/-0.79

8<OD≤12

+2.38/-0.79

OD>12

±1%


  Wall thickness & Tolerance

ASTM A450

Hot rolled

Outside Diameter, mm

Tolerance, mm

OD≤101.6

+0.4/-0.8

101.6<OD≤190.5

+0.4/-1.2

190.5<OD≤228.6

+0.4/-1.6

Cold Drawn

Outside Diameter, mm

Tolerance, mm

OD<25.4

±0.10

25.4≤OD≤38.1

±0.15

38.1<OD<50.8

±0.20

50.8≤OD<63.5

±0.25

63.5≤OD<76.2

±0.30

76.2≤OD≤101.6

±0.38

101.6<OD≤190.5

+0.38/-0.64

190.5<OD≤228.6

+0.38/-1.14

ASTM A530 & ASTM A335

NPS

Outside Diameter, inch

Tolerance, mm

1/8≤OD≤1-1/2

±0.40

1-1/2<OD≤4

±0.79

4<OD≤8

+1.59/-0.79

8<OD≤12

+2.38/-0.79

OD>12

±1%

   Packing  

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
  Equipment


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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