Hastelloy C276 Flanges

Hastelloy C276 flanges are durable pipe fittings made from a nickel molybdenum chromium alloy. It can withstand strong acids, oxidizing agents and reduced media because it is designed to function in the most corrosive conditions. Additionally, this alloy protects against stress corrosion cracking, pitting, and crevice corrosion. With a tensile strength of 790 MPa, yield strength of 355 MPa, and elongation of 40%, it combines high strength with toughness. Metracore Alloys is a trusted Hastelloy C276 flanges manufacturer in India, supplying products that are precise, reliable, and built to international standards.

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Our flanges are manufactured to ASTM B564 /ASME SB564 (UNS N10276). It has pressure ratings ranging from Class 150# to 2500#, and sizes ranging from 1/2″ to 48″. The dimensions of the various face types—RF, FF, and RTJ—meet ANSI, ASME, DIN, BS, and EN standards. Our C276 Hastelloy flanges are well known for their wide range of corrosion resistance and for their remarkable performance in media that are rich in hydrochloric acid, sulfuric acid and chloride. It is appropriate for high pressure and high heat service because it maintains their strength and durability at high temperatures. Their exceptional weldability and fabrication qualities in spite of their strength, guarantee safe and leak proof connections.

Hastelloy C276 flanges are used across industries where reliability in aggressive conditions is essential. It is installed in reactors, pipelines, and heat exchangers in chemical plants. They are used in turbines, condensers and high pressure piping in power generation, and is resistant to seawater corrosion in marine and offshore systems. Because of their resistance to stress and localized corrosion it is also frequently found in pollution control systems and petrochemical refineries. For precise dimensions and a long service life, the production process consists of forging, heat treatment, precision CNC machining, drilling and finishing.

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Each flange undergoes strict testing to meet international standards. Our products are supplied with MTC in accordance with EN 10204 3.1/3.2, ASTM B564 UNS N10276, and NACE MR0175. We guarantee safe delivery using sturdy wooden crates or pallets that guard against damage during transit because we are reputable suppliers of Hastelloy C276 flanges. Our global clients depend on us for reliable, long-lasting and fast delivery of flanges for various industrial applications.

Hastelloy C276 Flanges Specification

Types of Hastelloy C276 Flanges

Hastelloy C276 Flanges Face Forms

Reach out to Metracore Alloys for reliable Hastelloy C276 Flanges solutions

Technical Details of Hastelloy C276 Flanges

Hastelloy C276 Flanges Equivalent Grades

STANDARD	EN	UNS	WERKSTOFF NR.	JIS	GOST	OR
Hastelloy C276	NiMo16Cr15W	N10276	2.4819	NW 0276	ХН65МВУ	ЭП760

Chemical Composition of Hastelloy C276 Flanges

Grade	C	Mn	Si	S	Co	Ni	Cr	Fe	Mo	P
C276	0.010 max	1.00 max	0.08 max	0.03 max	2.50 max	50.99 min*	14.50 ? 16.50	4.00 ? 7.00	15.00 ? 17.00	0.04 max

Mechanical Properties Of Hastelloy C276 Flanges

Element	Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
Hastelloy C276	8.89 g/cm3	1370 ?C (2500 ?F)	Psi ? 1,15,000 , MPa ? 790	Psi ? 52,000 , MPa ? 355	40 %

Dimensions of Hastelloy C276 Flanges

AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)	ASME B16.11, Forged Fittings, Socket Welding and Threaded ASME B16.25, Buttwelding Ends ASME B16.36, Orifice Flanges ASME B1.20.1, Pipe Threads, General Purpose ASME B16.1, Cast Iron Flanges and Flanged Fittings Classes 25, 125 and 250 ASME B16.5, Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24 ASME B16.47, Large Diameter Steel Flanges NPS 26 Through NPS 60 ASME B46.1, Surface Texture (Surface Roughness, Waviness, and Lay) ASME B31.1, Power Piping ASME B31.3, Process Piping

AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)

ASME B16.11, Forged Fittings, Socket Welding and Threaded
ASME B16.25, Buttwelding Ends
ASME B16.36, Orifice Flanges
ASME B1.20.1, Pipe Threads, General Purpose
ASME B16.1, Cast Iron Flanges and Flanged Fittings Classes 25, 125 and 250
ASME B16.5, Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24
ASME B16.47, Large Diameter Steel Flanges NPS 26 Through NPS 60
ASME B46.1, Surface Texture (Surface Roughness, Waviness, and Lay)
ASME B31.1, Power Piping
ASME B31.3, Process Piping

Pressure Ratings of Hastelloy C276 Flanges

ANSI/ASME B16.34	PRESSURE RATING CHART
Temperature °F	150#	300#	400#	600#	900#	1500#	2500#
-20 to 100	275	720	960	1440	2160	3600	6000
200	230	600	800	1200	1800	3000	5000
300	205	540	720	1080	1620	2700	4500
400	190	495	660	995	1490	2485	4140
500	170	465	620	930	1395	2330	3880
600	140	435	580	875	1310	2185	3640
650	125	430	575	860	1290	2150	3580
700	110	425	565	850	1275	2125	3540
750	95	415	555	830	1245	2075	3460
800	80	405	540	805	1210	2015	3360
850	65	395	530	790	1190	1980	3300
900	50	390	520	780	1165	1945	3240
950	35	380	510	765	1145	1910	3180
1000	20	320	430	640	965	1605	2675
1050	20	310	410	615	925	1545	2570
1100	20	255	345	515	770	1285	2145
1150	20	200	265	400	595	995	1655
1200	20	155	205	310	465	770	1285
1250	20	115	150	225	340	565	945
1300	20	85	115	170	255	430	715
1350	20	60	80	125	185	310	515
1400	20	50	65	95	145	240	400
1450	15	35	45	70	105	170	285
1500	10	25	35	55	80	135	230