Chemical and Mechanical Requirements for Carbon Steel - ASTM A216 WCB

Jan 21, 2024

For carbon steel valves, ASTM A216 WCB is mostly commonly used for the casting of body & bonnet and other base materials of pressure-containing parts.

Chemical Requirements

Element %
Material Grade	C	Mn	P	SB	Si	NiC	CrC	MoC	CuC	VC
WCB D J03002	0.30	1.00	0.035	0.035	0.60	0.50	0.50	0.20	0.30	0.03

1. All values are maximums.

2. For lower maximum sulfur content, see Supplementary Requirement S52

3. Specified Residual Elements- Except when Supplementary Requirement S50 is specified, the total content of these elements is 1.00% maximum.

4. For each reduction of 0.01% below the specified maximum carbon content, an increase of 0.04% of manganese above the specified maximum will be permitted up to a maximum of 1.10% for WCA.1.28% for WCB and 1.40% for WCC.

Tensile Requirements

Material Grade	Tensile Strength, ksi (MPa)	Yield Strength, ksi (MPa)	Elongation in 2 in.(50mm), %	Reduction of Area, %
WCB	70-95 (485-655)	36 (250)	22	35

The equivalent material in forged type is ASTM A105N (refer to the standard accordingly).

Bosseal Valve is an experienced valve manufacturer of high-quality WCB casting valves, for any technical or commercial support please consider our teams at [email protected]

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Founded in 2013, Bosseal is a professional industrial valve manufacturer based in Suzhou, China. We specialize in the design and production of Ball Valves, Gate Valves, Globe Valves, Check Valves, Butterfly Valves, Plug Valves, and Piping Strainers. All our products are manufactured in strict compliance with international standards, including API, ASME, ISO, DIN, BS, and EN. With a strong focus on quality control and engineering capability, we are committed to providing reliable and high-performance valve solutions for global industrial applications.