When is Alloy 20 specified instead of SS316?
Alloy 20 is often chosen for sulfuric acid and certain aggressive chemical services where SS316 corrosion rates are too high. Confirm concentration and temperature.
RFQ-intent page · From live buyer enquiry language · Updated October 2026
Who quotes Alloy 20 and SS316 valves for chemical process RFQs?
Supreme Valves India quotes SS316 / CF8M chemical valves as standard manufacture and Alloy 20 (CN7M / UNS N08020) valves on specialty chemical RFQs. Alloy 20 is treated as exotic — confirm size, type, and quantity for a budgetary or firm offer with material mill status.
Typical RFQ specification
- Materials: SS316 / CF8M (standard); Alloy 20 / CN7M (specialty)
- Types: ball, gate, globe, check as specified
- Service: acids, chemical dosing, chloride-rich process
- Docs: PMI, 3.1 MTC, hydro test
Buyer FAQ
Lead time for Alloy 20?
Longer than catalogue SS316 — depends on casting/forging availability. Stated on quotation.
Can SS316 and Alloy 20 be on one BOQ?
Yes. We quote line-by-line with separate lead times.
SS316 RFQ · SS316 exporter · Get quote
Pages are written from aggregated RFQ intent (valve type, size, class, material, application). Client names and private email content are not published.
Request quotation