Alternatives to ASTM A105 for MSS-SP83 pipe unions

[rbrez]

MSS-SP83 for pipe unions specify the use of ASTM A105 for carbon steel material. We are finding A105 very hard to source. MSS-SP83 states that "Unions may be made from materials of other wrought material by agreement between the manufacturer and the purchaser but shall not be marked SP-83". What are acceptable alternatives that are readily available?

 

[unclesyd]

What type union are you looking for?

 

[rbrez]

Sorry - a threaded pipe union.

 

[NozzleTwister]

rbrez,

You're obviously looking talking to the wrong suppliers. ASTM A105 forged carbon steel is the material for 3000# carbon steel unions per MSS SP-83-2001.

You might try contacting the following manufacturers, Bonney Forge or Kemper Valve and Fittings, they both have websites.

Good luck,

NozzleTwister
Houston, Texas

 

[unclesyd]

If you need an O-ring union check this one out.

http://www.hartindustries.com/products.html

If you need a Hammer union check this one out.

http://www.boltex.com

 

[codeeng]

As far as I know carbon steel unions only come in A105. See attched Bonney Forge site.

http://www.bonneyforge.com/LU132.pdf