ASTM A234 WPB & WPC pipe fittings including elbows, tee, reducers

Chemical Composition of ASTM A234 WPB & WPC

Element	Content, %
	ASTM A234 WPB	ASTM A234 WPC
Carbon [C]	≤0.30	≤0.35
Manganese [Mn]	0.29-1.06	0.29-1.06
Phosphorus [P]	≤0.050	≤0.050
Sulfur [S]	≤0.058	≤0.058
Silicon [Si]	≥0.10	≥0.10
Chromium [Cr]	≤0.40	≤0.40
Molybdenum [Mo]	≤0.15	≤0.15
Nickel [Ni]	≤0.40	≤0.40
Copper [Cu]	≤0.40	≤0.40
Vanadium [V]	≤0.08	≤0.08

*The Carbon Equivalent [C.E.=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15] shall be no greater than 0.50 and shall be reported on MTC.

Mechanical Properties of ASTM A234 WPB & WPC

ASTM A234 Grades	Tensile Strength, min.		Yield Strength, min.		Elongation %, min
	ksi	MPa	ksi	MPa	Longitudinal	Transverse
WPB	60	415	35	240	22	14
WPC	70	485	40	275	22	14

*1. WPB and WPC pipe fittings manufactured from plates shall have a minimum elongation of 17%. *2. Unless required, hardness value doesn’t need to be reported.

Manufacture

The ASTM A234 carbon steel pipe fittings may be made from seamless pipes, welded pipes or plates by shaping operations of pressing, piercing, extruding, bending, fusion welding, machining, or by a combination of two or more these operations. All welds including welds in tubular products from which fittings are made shall be made in accordance with ASME Section IX. Post-weld heat treatment at 1100 to 1250°F[595 to 675°C] and radiographic examination shall be performed after the welding process.