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Piping Materials Match Chart (ASTM)

The piping material chart shows the matching ASTM materials for pipes, valves, fittings, flanges and stud bolts.


The piping ASTM materials match chart shows, for example, that an A106 Gr. A pipe matches with ASTM A234 buttweld fitting, with an ASTM A105 forged fitting, flange or valve, with an A216 WCB cast valve and with ASTM A193 B7 stud bolts.

The same logic applies to any other ASTM material grade listed in the table.

High-Temperature Carbon SteelA106 Gr AA234 Gr WPAA105A216 Gr WCBA193 Gr B7
A194 Gr 2H
A106 Gr B/A53 Gr B/API 5L Gr. BA234 Gr WPBA105A216 Gr WCB
A106 Gr CA234 Gr WPCA105A216 Gr WCB
Carbon Steel
Alloy High-Temp
A335 Gr P1A234 Gr WP1A182 Gr F1A217 Gr WC1A193 Gr B7
A194 Gr 2H
A335 Gr P11A234 Gr WP11A182 Gr F11A217 Gr WC6
A335 Gr P12A234 Gr WP12A182 Gr F12A217 Gr WC6
A335 Gr P22A234 Gr WP22A182 Gr F22A217 Gr WC9
A335 Gr P5A234 Gr WP5A182 Gr F5A217 Gr C5
A335 Gr P9A234 Gr WP9A182 Gr F9A217 Gr C12
A 335 Gr P91A234 Gr WP91A182 Fr F91
Carbon Steel
Alloy Low-Temp
A333 Gr 6A420 Gr WPL6A350 Gr LF2A352 Gr LCBA320 Gr L7
A194 Gr 7
A333 Gr 3A420 Gr WPL3A350 Gr LF3A352 Gr LC3
Stainless Steel
A312 Gr TP304A403 Gr WP304A182 Gr F304A182 Gr F304A193 Gr B8
A194 Gr 8
A312 Gr TP316A403 Gr WP316A182 Gr F316A182 Gr F316
A312 Gr TP321A403 Gr WP321A182 Gr F321A182 Gr F321
A312 Gr TP347A403 Gr WP347A182 Gr F347A182 Gr F347
* Forgings include: forged fittings, flanges, forged valves, some gaskets



  • ASTM A53 (Gr. A and B): seamless and welded carbon steel pipes for medium-high temperature and structural application
  • ASTM A106 (Gr. A and B): Specification for seamless carbon steel pipe for high-temperature service
  • ASTM A333 (Gr 1-11): Specification for seamless and welded pipes for low-temperature service
  • ASTM A335 (Gr. P1 to P92): Specification for seamless ferritic alloy-steel pipe for high-temperature service
  • ASTM A312 (TP 304, 316, 321, 347, etc): Standard specification for seamless, straight-seam welded, and cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service
  • ASTM A790: Specification for seamless duplex and super duplex pipes (UNS S32205/31803 and UNS S32750/32760)


Cast valves feature a cast steel outer body:

  • ASTM A216 (WCA, WBC, WCC): Specification for carbon steel castings for valves, flanges, fittings, or other pressure-containing parts for high-temperature service and of the quality suitable for assembly with other castings or wrought steel parts by fusion welding
  • ASTM A217: Specification for steel castings, martensitic stainless steel and alloys steel castings for valves, flanges, fittings, and other pressure-containing parts intended primarily for high-temperature and corrosive service.
  • ASTM A351 (CF8, CF8M): Specification for steel castings for Valves, flanges, fittings, and other pressure-containing parts intended primarily for low-temperature service


This category includes the common materials used for socket weld and threaded fittings ASME B16.11 (forged fittings), valves with forged bodies (example API 602 / BS 5351 and BS 5352 valves), and steel flanges ASME B16.5.

    • ASTM A105: Specification for standards for forged carbon steel piping components, that is, flanges, fittings, Valves, and similar parts, for use in pressure systems at ambient and higher-temperature service conditions
  • ASTM A182: This specification covers forged or rolled alloy and stainless steel pipe flanges, forged fittings, and Valves and parts for high-temperature service.
  • ASTM A350: Specification for several grades of carbon and low alloy steel forged or ring-rolled flanges, forged fittings and Valves for low-temperature service.

The chemical composition, mechanical properties and selection criteria for forged piping materials are analyzed in detail on this article.


  • ASTM A234 (WPA, WPB, WPC): Specification for wrought carbon steel and alloy steel fittings of seamless and welded construction.
  • ASTM A420: Standard specification for piping fittings of wrought carbon steel and alloy steel for low-temperature service.
  • ASTM A403: Standard specification for wrought austenitic stainless steel piping fittings.


  • ASTM A193: Standard specification for alloy and stainless steel stud bolts materials for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.
  • ASTM A320: Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for Low-Temperature Service.
  • ASTM A194: Standard specification for hexagonal steel nuts materials to match A193 and A320 stud bolts (threaded rod)


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