Hastelloy C276 Flanges | ASTM C22 Flanges Supplier Mumbai

Unmatched strength against corrosion and heat, hastelloy C22/C276 flanges are high-performance nickel-chromium-molybdenum alloys designed to deliver superior corrosion resistance, oxidation control, and structural integrity in the most aggressive industrial environments. Hastelloy C22 offers outstanding protection against oxidizing and reducing agents, while Hastelloy C276 provides enhanced resistance to strong chemicals such as chlorides, ferric, and cupric salts. These flanges ensure leak-proof, long-lasting connections in systems exposed to acids, seawater, and high-temperature operations, making them a trusted choice where precision and reliability are non-negotiable.

Hastelloy C22 flanges are widely used by chemical manufacturers, marine engineers, and environmental processing units that handle corrosive gases and liquids. Hastelloy C276 flanges are preferred by pharmaceutical plants, petrochemical industries, and power generation units for their durability under extreme heat and chemical exposure. These flanges are installed in reactors, condensers, scrubbers, pressure vessels, and heat exchangers, where they resist pitting, crevice corrosion, and stress cracking. From offshore oil rigs to pollution control systems, both alloys ensure dependable performance and minimal downtime in demanding industrial conditions.

Alloy C22 slip on flanges are commonly used by fabrication contractors and maintenance engineers for low-pressure pipelines, cooling water systems, and acid transfer lines, offering easy installation and inspection. Alloy C276 slip on flanges serve refineries, fertilizer plants, and marine industries that need quick-fit, corrosion-resistant solutions for high-moisture environments. Meanwhile, Alloy C22 Threaded flanges are favored by instrumentation and gas processing sectors for their tight sealing and ease of replacement in small-diameter connections. Alloy C276 threaded flanges, on the other hand, are used in chemical reactors, power boilers, and offshore assemblies, providing maximum leak prevention and mechanical stability. Together, hastelloy C22/C276 flanges represent the perfect balance of strength, corrosion resistance, and engineering excellence trusted by global industries.

Hastelloy C22 / C276 Flanges Equivalent Grades

STANDARD	UNS	WNR.	JIS	EN
Hastelloy C22	N06022	2.4602	NW 6022	NiCr21Mo14W
Hastelloy C276	N10276	2.4819	NW 0276	NiMo16Cr15W

Alloy C22 / C276 Slip On Flanges

Hastelloy® C22 SORF Flanges, UNS N06022 / N10276 Slip On Flanges, DIN 2.4602 SORF Flanges, ASME SB 564 Alloy C276 Slip-on Raised Face Flanges

Hastelloy C22 / C276 Weld Neck Flanges

ASME SB564 Hastelloy C22 WNRF Flanges, ASTM B564 Hastelloy® C276 Weld Neck Flanges, DIN 2.4602 Weld Neck Flanges, UNS N06022 Weld Neck Raised Face Flanges

Alloy C22 / C276 Blind Flanges

ASTM B564 Hastelloy C22 Blind Flanges, UNS N06022 / DIN 2.4602 Blind Flanges, ASME SB564 Alloy C276 BLRF Flanges, Alloy C22/C276 Blind Raised Face Flanges Supplier

Alloy C22/C276 Threaded Flanges

DIN 2.4602 Threaded Flanges, UNS N06022 Screwed Flanges, ASME SB 564 Alloy C276 Threaded Flanges, ASTM B564 Hastelloy C276 Threaded Flanges

Alloy C22/C276 Socket Weld Flanges

ASTM B564 C276 Hastelloy Socket Weld Flanges, Hastelloy UNS N06022/ N10276 Socket Weld Flanges, Alloy DIN 2.4819 Socket Weld Flanges

Hastelloy C22/C276 Lap Joint Flanges

UNS N06022 Lap Joint Flanges, Hastelloy® C22 Lap Joint Flanges, ASTM B564 C276 Hastelloy Lap Joint Flanges, ASME SB564 Hastelloy Alloy C22/C276 Lap Joint Flanges

Alloy C22/C276 Ring Type Joint Flange

UNS N06022 Ring Type Joint Flange, ANSI B16.5 Hastelloy C22 RTJ Flanges, ASTM B564 Hastelloy C276 Ring Type Joint Flanges, ASME SB564 Alloy C22/C276 Ring Type Joint Flanges

Hastelloy C22/C276 Orifice Flanges

UNS N06022 Orifice Flanges, B16.36 Hastelloy C22 / C276 Orifice Flanges, ASTM B564 Alloy C22 Orifice Flanges, ASME SB 564 Hastelloy Alloy C22/C276 Orifice Flanges

Alloy C22/C276 Long Weld Neck Flanges

UNS N10276 Long Weld Neck Flanges, Hastelloy 2.4819 Long Weld Neck Flanges, ASTM B564 Hastelloy C276 Long Weld Neck Flanges, ASME SB 564 Hastelloy C276 Long Weld Neck Flanges

Hastelloy C22/C276 Spectacle Blind Flanges

UNS N10276 Spectacle Blind Flanges, ANSI / ASME B16.5 Alloy C276 Spectacle Blind Flanges, ASTM B564 Alloy C22/C276 Spectacle Blind Flanges, ASME SB 564 Hastelloy C22/C276 Spectacle Blind Flanges

Hastelloy C22/C276 Forged Flanges

UNS N10276 Forged Flanges, B16.5 Alloy C22 Forged Flanges, ASTM B564 Hastelloy Alloy C276 Forged Flanges, ASME SB564 Alloy C22/C276 Forged Flanges

Hastelloy C22/C276 Plate Flanges

UNS N06022 Plate Flanges, ANSI B16.5 Hastelloy C22/C276 Plate Flanges, ASTM B564 Hastelloy C22/C276 Plate Flanges, ASME SB564 Hastelloy Alloy C276 Plate Flanges

Hastelloy Flanges Specification :

ASTM B564 / ASME SB564

Dimension Standard :

ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.

Standard :

ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.

Size :

1/2" (15 NB) to 48" (1200NB)

Class / Pressure :

150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Flange Face Type :

Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

DIN Flanges :

DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673.

JIS Flanges :

JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K

BS Flanges :

BS4504 PN 6, BS 4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS 4504 PN 64, BS 4504 PN 100, BS 4504 PN 160, BS 4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H.

Chemical Composition of Hastelloy C22 / C276 Flanges

Grade	C	Mn	Si	S	Co	Ni	Cr	Fe	Mo	P
Hastelloy C22	0.010 max	0.50 max	0.08 max	0.02 max	2.50 max	50.015 max	20.00 - 22.50	2.00 - 6.00	12.50 - 14.50	0.02 max
Hastelloy C276	0.01 max	1.0 max	0.08 max	2.50 max	Balance	14.5-16.5	4-7	15-17	0.04 max