Designation Cross-Reference

161 Grade 430 — ASTM Equivalent

Holding a datasheet that specifies 161 Grade 430 (BS 1504)? The valve-grade equivalent, its properties, and certified supply of the matching ASTM grade.

What is the ASTM equivalent of 161 Grade 430?

161 Grade 430 is a BS 1504 designation corresponding to ASTM A216 WCB (Carbon Steel WCB) for industrial valve service. The full grade data is below - equivalence is by nominal chemistry and mechanical class, so confirm composition and heat-treat condition against the governing standard before substituting in critical service.

A216 WCB

Carbon Steel

Carbon Steel WCB - cast form.

Service temperature-29°C to +538°C

Nominal compositionC ≤ 0.30%, Mn ≤ 1.00%, Si ≤ 0.60%, P ≤ 0.035%, S ≤ 0.035%. Carbon equivalent: Ceq ≤ 0.50%.

Typical service: Steam service (up to Class 1500 with IBR certification); Water, cooling water, firewater; Crude oil and petroleum products

Also designated:161 Grade 430 [BS 1504]GS-C25 [DIN/EN]1.0619 [DIN/EN]SCPH2 [JIS]

Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026

Connected Engineering

Materials

A216 WCB Carbon Steel

Need valves in 161 Grade 430 / its ASTM equivalent?

We supply A216 WCB valves - the 161 Grade 430 equivalent - with EN 10204 3.1 material certification. Share the datasheet for a 24-hour quote.

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Engineering references

A216 WCB full grade pageCarbon Steel WCB Equivalence MatrixAll 43 grades across 7 systems Designation lookup directoryEvery foreign designation indexed