A774 Stainless Steel Collars

Seamless Vanstone rings: DN15-DN600 (½"-48")

Supports SCH5S-XXS pressure ratings, ideal for oil/gas pipelines and cryogenic applications.

:

CN:GB/T12459, GB/T13401, HG/T21635, HG/T21631

ASME:B16.9, MSS SP-43

EU:DIN2605-2617, EN10253-3/4

JIS/GOST:JIS B2311/2220, GOST 17375/17376, etc.

Accepts custom drawings per ISO/API/EN specifications.

Austenitic SS: 304/304L, 316/316L, 321

Duplex SS: S31803, S32205, S32750 (Chloride Resistance)

Super Alloys: 904L, 254SMO, 317L (Extreme pH Environments)

Nickel Alloy: N06625, N08825, etc.

Compliant with ASTM/AISI/UNS standards (1.4301, 1.4401, etc.).