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ASTM A234 WPB-WX REDUCER Alloy Steel
ASTM A234 is the standard specification for steel pipe fittings suitable for use in medium and high temperature environments, including carbon steel and alloy steel materials. Carbon steel ASTM A234 fittings are used for medium and high temperature pressure piping. Pipe fitting materials in this standard include killed steel, forgings, rods, plates, and seamless or fusion welded pipes with filler metal added. These fitting materials include killed steel, forgings, rods, plates, and seamless (fusion welded) tubing products with added filler metal.
Chemical Composition (%) of ASTM A234
Grade | C | Mn | P | S | Si | Cr | Mo | Ni | Cu | V | Nb |
WPB | 0.3 | 0.29-1.06 | 0.05 | 0.058 | 0.1min | 0.4 | 0.15 | 0.4 | 0.4 | 0.08 | 0.02 |
WPC | 0.35 | 0.29-1.06 | 0.05 | 0.058 | 0.1min | 0.4 | 0.15 | 0.4 | 0.4 | 0.08 | 0.02 |
WP11 CL1 | 0.05-0.15 | 0.30-0.60 | 0.03 | 0.03 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 | - | - | - | - |
WP11 CL2/3 | 0.05-0.20 | 0.30-0.80 | 0.04 | 0.04 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 | - | - | - | - |
Tensile Requirements | WPB | WPC, WP11CL2 | WP11CL1 | WP11CL3 |
Tensile Strength, min, ksi[MPa] | 60-85 | 70-95 | 60-85 | 75-100 |
(0.2% offset or 0.5% extension-under-load) | [415-585] | [485-655] | [415-585] | [520-690] |
Yield Strength, min, ksi[MPa] | 32 | 40 | 30 | 45 |
[240] | [275] | [205] | [310] |