American standard forged flanges. NPS 1/2"-24" (DN15-DN600), Class 150-2500LB. 11 flange types. Stainless steel, duplex stainless, nickel alloys.
Complete range of ASME B16.5 / B16.47 forged flanges manufactured to international quality standards
Long tapered hub, butt weld connection, high strength for critical service
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Socket bore extends into flange, ideal for small bore high-pressure
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Combination of blind ring and spacer ring for pipeline isolation
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Complete specifications for pipe flanges and flanged fittings, NPS 1/2" through NPS 24"
NPS 1/2" to 24"
(DN15 to DN600)
Class 150, 300, 400, 600,
900, 1500, 2500 LB
Raised Face (RF), Flat Face (FF),
Ring Type Joint (RTJ)
-29°C to +538°C
(dependent on material)
ASTM A182 / A105
Forged construction
ASME B16.5, ISO 9001
Hydrostatic & PMI testing
Various corrosion-resistant alloys for demanding applications
304 / 304L (F8/F8A)
316 / 316L (F8/F8A)
321 (F8C), 347 (F8D)
310S, 904L
2205 (UNS S31803/S32205, F51)
2507 (UNS S32750, F53)
32760 (UNS S32760, F55)
904L (UNS N08904)
254 SMO (UNS S31254)
253 MA
Inconel 625 (N06625)
Incoloy 825 (N08825)
Hastelloy C276 (N10276)
Monel 400 (N04400)
ASME B16.5 flanges for oil & gas, petrochemical, chemical, power, water treatment
Upstream, midstream, downstream processing facilities, offshore platforms
Refineries, chemical plants, LNG terminals, fertilizer plants
Thermal, nuclear, renewable energy facilities, steam systems
Deepen your knowledge with our in-depth technical guides written by JIAJI engineers:
ASME B16.5, EN 1092-1, DIN, GB flange & fitting standards explained with comparison tables.
Read Guide →Flange face types, pressure ratings, bolt torque calculation & gasket selection best practices.
Read Guide →Carbon steel, stainless steel, duplex, super duplex & nickel alloy selection guide.
Read Guide →Founded in 2010 in Wenzhou, China's stainless steel flange capital
ISO 9001, PED 2014/68/EU, AD 2000, API 6A, API 6D
Europe, Middle East, Southeast Asia, Central Asia, Americas
