Copper Nickel 90/10 Flanges

Copper Nickel 90/10 Flanges

Arrow Piping Solutions is one of the leading manufacturers, suppliers, exporters, and distributors of Copper Nickel 90/10 Flanges in India. We provide a wide range of Cu-Ni 90/10 Flange types including Spectacle Blind Flanges, Lap Joint Flanges, SORF Flanges, Socket Weld Flanges, Threaded Flanges, and Plate Flanges. Our flanges are manufactured as per ASTM B151 standards and are available at competitive prices across Mumbai and all over India.

Cupro Nickel 90/10 (C70600) is an alloy consisting of 90% Copper and 10% Nickel, along with small additions of iron and manganese. This alloy is known for its excellent corrosion resistance, high strength, and especially its suitability in marine environments. Cu-Ni 90/10 also offers resistance to biofouling, stress corrosion cracking, and erosion, making it ideal for demanding industrial applications.

Specifications of Cupro Nickel 90/10 Flanges

• Specification: ASTM B151 / ASME SB151
• Dimension Standard: ANSI B16.5, BS 1560, BS 10, IS 6392, B-2.1 NPT, API, DIN, JIS, MSS SP 44
• Standard: ASTM / ASME SB 151 / 160 / 472
• Size: ½” NB to 12” NB
• Class / Pressure: 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, ASA 150#, ASA 300#, DIN ND 6 to ND 40

Equivalent Grades

STANDARD	UNS	DIN
Cupro Nickel 90/10	C70600	2.0872

Chemical Composition

Grade	Cu	Mn	Pb	Ni	Fe	Zn
Cu-Ni 90/10	88.6 min	1.0 max	0.05 max	9–11	1.8 max	1 max

Mechanical Properties

Density	Melting Point	Tensile Strength	Yield Strength (0.2% Offset)	Elongation
0.323 lb/in³	2260 °F	50000 psi	20000 psi	30%

Stock Sizes and Dimensions

Arrow Piping Solutions maintains a comprehensive inventory of Cupro Nickel 90/10 Flanges in a wide range of dimensions, thicknesses, and pressure classes. Custom sizes are also available upon request.

Available Standards & Dimensions

Standard	Class	Diameter	Bolt Circle	Bolts	Bolt Size	Bolt Hole Dia
AS4087	PN14	95	67	4	M12	14
AS 2129	Table C	95	67	4	13	14
Table D	-	95	67	4	13	14
Table E	-	95	67	4	13	14
Table F	-	95	67	4	13	14
Table H	-	114	83	4	16	17
Table J	-	114	83	4	16	17
ANSI B16.5	150	89	60	4	13	16
ANSI	300	95	67	4	13	16
ANSI	600	95	67	4	13	16
ANSI	900	121	83	4	19	22
ANSI	1500	121	83	4	19	22
ISO 7005	PN6	80	55	4	M10	11
PN10	-	95	65	4	M12	14
PN16	-	95	65	4	M12	14
PN20	-	90	60.5	4	M14	16
PN25	-	95	65	4	M12	14
PN40	-	95	65	4	M12	14

Application Industries