I want to manufacture ASTM 860 GR W

[Arkaprava Ghosh]

I want to manufacture ASTM 860 GR WPHY 60 fittings. What ASTM pipe grade should be ordered as starting material?

 

[metengr]

Look at the API 5L X60 Pipe Grade.

 

[WKTaylor]

Arkaprava Ghosh

Per ASTM A860 Wrought High-Strength Ferritic Steel Butt-Welding Fittings, Standard Specification ...

1. Scope*
1.1 This specification covers wrought high-strength ferritic
steel butt-welding fittings of seamless and electric fusion-
welded construction covered by the latest revisions of ASME
B16.9 and MSS-SP-75. Butt-welding fittings differing from
these ASME and MSS standards shall be furnished in accordance
with Supplementary Requirement S58 of Specification
A960/A960M. These fittings are for use in high-pressure gas
and oil transmission and distribution systems.

ASME B16.9 Factory-Made Wrought Butt-welding Fittings

MSS SP-75 High-Strength, Wrought, Butt-Welding Fittings

ASTM A960 Common Requirements for Wrought Steel Piping Fittings, Standard Specification for

Regards, Wil Taylor

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[metengr]

If you review the referenced ASTM specification, you will find there are limited chemical composition requirements but no reference to a particular grade of material with which to manufacture the fittings. The OP actually posed a good question related to starting material to manufacture fittings.

As I stated, a good starting material is API 5L Grade X60, which meets A 860 chemical composition and strength requirements to manufacture fittings. There are others starting materials as well.

 

[SJones]

Depends on how the material responds to the mandated heat treatment. Starting with a TMCP pipe and then heat treating it might lead to grief.

Steve Jones
Corrosion Management Consultant

http://www.linkedin.com/pub/8/83b/b04

All answers are personal opinions only and are in no way connected with any employer.

 

[metengr]

The other option you have for starting material is A 105 for fittings. You would need to procure the pipe with chemical requirements listed in A 860.

 

[Arkaprava Ghosh]

Thankyou all. API 5l Gr X60 seems to be the best option.