ASTM A312 Pipe

Short Description:

Type: Seamless Cold Drawn Tubes, Hot Finished Seamless Pipes, Welded Pipes
Specification: Seamless(OD: 10.3mm to 610mm), Welded(OD: 10.3mm to 914mm) Length: 0-12m.
Standard: ASTM A312 ASME SA312
Grades: TP304, TP304L, TP304H, TP321H, TP321, TP316, TP316L,
Thickness: SCH 5/5S, 10/10S, 20/20S, 40/40S, 80/80S, 120/120S, 160/160S
Finish: No.1 Pickled Finish, No.4 finish, BA Finish, Electropolished Seamless Pipes


Product Detail

Manufacturing Process

Application

Our Advantages

Product Tags

What is ASTM A312 Steel Pipe?

ASTM A312 pipe is the general use stainless steel pipe applied in different industries. It covers diameters from 1/8” to 30” and thickness from SCH 10S to SCH 80S. Common use material grades are TP304/304L, TP316/316L.

The standard specifications include seamless, straight seam welded and heavily cold welded austenitic stainless steel tubing for high temperature and general corrosive service. There are several grades in this standard, and each steel grade shall confirm to the required chemical composition of C, Mn, P, S, Si, Cr and Cr, Ni, Mo, etc. All the pipes shall be furnished in the heat-treated condition in accordance with the required heat treating temperature and cooling/testing requirements. And also need to comply to the required tensile strength and yield strength.

Dimension

Group

Grade

Type

Total elongation under load       % 

Yield strength   Mpa

Tensile strength min     MPa 

Hardness  max

min 

max

HRC

HBW

1

2

3

4

5

6

7

8

9

1

 J55

-

0.5

379

552

517

-

-

K55

-

0.5

379

552

655

-

-

 N80

1

0.5

552

758

689

-

-

N80

 Q

0.5

552

758

689

-

-

2

L80

1

0.5

552

655

655

23

241

L80

9Cr

0.5

552

655

655

23

241

L80

13Cr

0.5

552

655

655

23

241

C90

0.5

621

724

689

25.4

255

C95

-

0.5

655

758

724

-

-

T95

0.5

655

758

724

25.4

255

3

P110

-

0.6

758

965

862

-

-

4

Q125

All

0.65

862

1034

931

-

-

Mechanical Properties

Label D Outside diameter mm Wall thickness t mm C  Type of end-finish
    1 2 H40 J55 L80 N80 1Q C90 T95 P110
  NU T&C EU T&C IJ
1 2 3 4 5 9 10 11 12 13 14 15 16
1.9 2.75 2.9 2.76 48.26 3.68 PNUI PNUI PNUI PNUI PNUI PNUI -
1.9 3.65 3.73 - 48.26 5.08 PU PU PU PU PU PU PU
1.9 4.42 - - 48.26 6.35 - - P - P P -
2.375 4 - - 60.32 4.24 PU PN PN PN PN PN -
2.375 4.6 4.7 - 60.32 4.83 PNU PNU PNU PNU PNU PNU PNU
2.375 5.8 5.95 - 60.32 6.45 - - PNU PNU PNU PNU PNU
2.375 6.6 - - 60.32 7.49 - - P - P P -
2.375 7.35 7.45 - 60.32 8.53 - - PU - PU PU -
2.875 6.4 6.5 - 73.02 5.51 PNU PNU PNU PNU PNU PNU PNU
2.875 7.8 7.9 - 73.02 7.01 - - PNU PNU PNU PNU PNU
2.875 8.6 8.7 - 73.02 7.82 - - PNU PNU PNU PNU PNU
2.875 9.35 9.45 - 73.02 8.64 - - PU - PU PU -
2.875 10.5 - - 73.02 9.96 - - P - P P -
3.5 7.7 - - 88.9 5.49 PN PN PN PN PN PN -
3.5 9.2 9.3 - 88.9 6.45 PNU PNU PNU PNU PNU PNU PNU
3.5 10.2 - - 88.9 7.34 PN PN PN PN PN PN -
3.5 12.7 12.95 - 88.9 9.52 - - PNU PNU PNU PNU PNU
3.5 14.3 - - 88.9 10.92 - - P - P P -
3.5 15.5 - - 88.9 12.09 - - P - P P -
4 9.5 - - 101.6 5.74 PN PN PN PN PN PN -
4 10.7 11 - 101.6 6.65 PU PU PU PU PU PU -
4 13.2 - - 101.6 8.38 - - P - P P -
4 16.1 - - 101.6 10.54 - - P - P P -
4.5 12.6 12.75 - 114.3 6.88 PNU PNU PNU PNU PNU PNU -
4.5 15.2 - - 114.3 8.56 - - P - P P -

Production Process

OCTG-Casing-(2)

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  • Manufacturing process of ASTM A312 Seamless Steel Pipe

    stainless steel seamless pipe manufacturing process

    Manufacturing process of ASTM A312 Welded Steel Pipe

    stainless steel welded pipe manufacturing process

    Application of ASTM A312 Steel Pipe

    - Kitchen benches, sinks, troughs, equipment and appliances
    - Architectural paneling, railings & trim
    - Chemical containers, including for transport
    - Heat Exchangers
    - Woven or welded screens for mining, quarrying & water filtration
    - Threaded fasteners
    - Water Supply Systems
    - Power Plant
    - Paper and pulp Industry
    - General Purpose Applications
    - Fabrication Industry
    - Food Processing Industry
    - Industrial Structural Project
    - Oil and Gas Pipeline
    - Chemical Industry
    - Plumbing Industrial

    We are a professional Stainless Steel Pipe manufacturer. We provide Stainless Steel Pipe of different sizes as well as steel pipes and pipe fittings of various specifications.

    Our Advantages:
    1.China-leading product service provider and exporter of steel pipe
    2.Competitive price and quality from our own factory
    3.One-stop Resource Integration
    4.Passed the ISO9001, CE, SGS certification every year
    5.Best service with 24-hour response
    6.Flexible payment methods
    7.Strong production capacity
    8.Fast delivery and standard export packaging
    9.OEM/ODM

    If you would like to inquire about any steel products, please feel free to contact us:sales@bestartubes.com20230927171424H6RATC2~S}BLIMQ(H@(JOU5

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