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Description

C71500（DIN 2.8820，CuNi30Mn1Fe，CW354H，70-30CuNi）

Copper nickel alloy 71500 finds its greatest application in areas of high temperatures and pressures combined with high velocity and destructive turbulence. The small iron content, up to 0.5%, gives the C715 alloy an extraordinary resistance to general corrosion and stress corrosion cracking, making it very suitable and ideal for the marine or industrial industries.

Common applications include:

Condensers
Seawater piping
Power plants
Exchanger shells

C71500 Chemical Composition
	Element
	Cu^(1,2)	Pb	Zn	Fe	Ni⁽³⁾	Mn
(1) Cu + Sum of Named Elements 99.5% min. (2) Cu value includes Ag. (3) Ni value includes Co.
Min (%)				0.40	29.0
Max (%)	Rem	0.05	1.0	1.0	33.0	1.0

C71500 Mechanical Properties*
Form	Temper	Temper Code	Tensile Strength (ksi)	YS-0.5% Ext (ksi)	Elongation (%)	Rockwell B scale	Rockwell F scale	Section Size (in)	Cold Work (%)
Flat Products	As Hot Rolled	M20	55 Typ	20 Typ	45 Typ	35 Typ		1
Rod	1/2 Hard	H02	75 Typ	70 Typ	15 Typ	80 Typ		1	20
Tube	Nominal Grain Size 0.025 mm	OS025	60 Typ	25 Typ	45 Typ	45 Typ	80 Typ
Tube	Nominal Grain Size 0.035 mm	OS035	54 Typ		45 Typ	36 Typ	77 Typ
* Measured at room temperature, 68°F (20°C).

C71500 Physical Properties
Melting Point – Liquidus°F	2260
Melting Point – Solidus°F	2140
Densitylb/cu in. at 68°F	0.323
Specific Gravity	8.94
Electrical Conductivity% IACS at 68°F	4.6
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F	17
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F)	9
Specific Heat CapacityBtu/ lb /°F at 68°F	0.09
Modulus of Elasticity in Tensionksi	22000
Modulus of Rigidityksi	8300

C71500 Fabrication Properties
Technique	Suitability
Soldering	Excellent
Brazing	Excellent
Oxyacetylene Welding	Good
Gas Shielded Arc Welding	Excellent
Coated Metal Arc Welding	Excellent
Spot Weld	Excellent
Seam Weld	Excellent
Butt Weld	Excellent
Capacity for Being Cold Worked	Good
Capacity for Being Hot Formed	Good
Machinability Rating	20

C71500 Applicable Specifications
Form	Specific Sub-Form	Application	System	Standard	Description
Bar			ASTM	B122/B122M	COPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL PLATE, SHEET, STRIP, AND ROLLED BAR
			MILITARY	MIL-C-15726	COPPER-NICKEL ALLOY ROD, FLAT PRODUCTS (FLAT WIRE, STRIP, SHEET, BAR, AND PLATE) AND FORGINGS
			SAE	J461	WROUGHT AND CAST COPPER ALLOYS
			SAE	J463	WROUGHT COPPER AND COPPER ALLOYS
Bolts			ASTM	F468	NONFERROUS BOLTS, HEX CAP SCREWS, AND STUDS FOR GENERAL USE
Condenser & Heat Exchanger Tube with Integral Fins	Welded		ASTM	B956/B956M	WELDED COPPER AND COPPER-ALLOY CONDENSER AND HEAT EXCHANGER TUBES WITH INTEGRAL FINS
Electrode		Welding	AWS	A5.6	COPPER AND COPPER ALLOY COVERED ELECTRODES
Electrode		Welding	MILITARY	MIL-E-22200/4	ELECTRODES, WELDING, COVERED, COPPER-NICKEL ALLOY
Nuts			ASTM	F467	NONFERROUS NUTS FOR GENERAL USE
Pipe			ASME	SB467	WELDED COPPER-NICKEL PIPE
	Seamless		ASTM	B466/B466M	SEAMLESS COPPER-NICKEL PIPE AND TUBE
	Welded		ASTM	B467	WELDED COPPER-NICKEL PIPE
Pipe and Tube	Seamless		ASME	SB466	SEAMLESS COPPER-NICKEL PIPE AND TUBE
Plate		Condenser Tube	ASME	SB171	COPPER ALLOY CONDENSER TUBE PLATES
			ASTM	B122/B122M	COPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL PLATE, SHEET, STRIP, AND ROLLED BAR
		Condenser Tube	ASTM	B171/B171M	COPPER ALLOY CONDENSER TUBE PLATES
	Clad		ASTM	B432	COPPER AND COPPER ALLOY CLAD STEEL PLATE
			MILITARY	MIL-C-15726	COPPER-NICKEL ALLOY ROD, FLAT PRODUCTS (FLAT WIRE, STRIP, SHEET, BAR, AND PLATE) AND FORGINGS
		Condenser Tube	SAE	J461	WROUGHT AND CAST COPPER ALLOYS
			SAE	J461	WROUGHT AND CAST COPPER ALLOYS
			SAE	J463	WROUGHT COPPER AND COPPER ALLOYS
		Condenser Tube	SAE	J463	WROUGHT COPPER AND COPPER ALLOYS
Rod			MILITARY	MIL-C-15726	COPPER-NICKEL ALLOY ROD, FLAT PRODUCTS (FLAT WIRE, STRIP, SHEET, BAR, AND PLATE) AND FORGINGS
Rod & Bar			ASTM	B151/B151M	COPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL ROD AND BAR
Screws			ASTM	F468	NONFERROUS BOLTS, HEX CAP SCREWS, AND STUDS FOR GENERAL USE
Sheet			ASTM	B122/B122M	COPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL PLATE, SHEET, STRIP, AND ROLLED BAR
			MILITARY	MIL-C-15726	COPPER-NICKEL ALLOY ROD, FLAT PRODUCTS (FLAT WIRE, STRIP, SHEET, BAR, AND PLATE) AND FORGINGS
			SAE	J461	WROUGHT AND CAST COPPER ALLOYS
			SAE	J463	WROUGHT COPPER AND COPPER ALLOYS
Strip			ASTM	B122/B122M	COPPER-NICKEL-ZINC ALLOY (NICKEL-SILVER) AND COPPER-NICKEL PLATE, SHEET, STRIP, AND ROLLED BAR
			MILITARY	MIL-C-15726	COPPER-NICKEL ALLOY ROD, FLAT PRODUCTS (FLAT WIRE, STRIP, SHEET, BAR, AND PLATE) AND FORGINGS
			SAE	J461	WROUGHT AND CAST COPPER ALLOYS
			SAE	J463	WROUGHT COPPER AND COPPER ALLOYS
Studs			ASTM	F468	NONFERROUS BOLTS, HEX CAP SCREWS, AND STUDS FOR GENERAL USE
Tube		Condenser Tube	ASME	SB111	COPPER AND COPPER ALLOY SEAMLESS CONDENSER TUBES & FERRULE STOCK
	Finned		ASME	SB359	COPPER & COPPER ALLOY SEAMLESS CONDENSER & HEAT EXCHANGER TUBES WITH INTEGRAL FINS
	U-Bend		ASME	SB395	U-BEND SEAMLESS COPPER & COPPER ALLOY HEAT EXCHANGER & CONDENSER TUBE
	Welded		ASME	SB543	WELDED COPPER AND COPPER ALLOY TUBE
		Condenser Tube	ASTM	B111/B111M	COPPER AND COPPER ALLOY SEAMLESS CONDENSER TUBES AND FERRULE STOCK
	Finned		ASTM	B359/B359M	COPPER AND COPPER-ALLOY SEAMLESS CONDENSER AND HEAT EXCHANGER TUBES WITH INTEGRAL FINS
	U-Bend		ASTM	B395/B395M	U-BEND SEAMLESS COPPER AND COPPER ALLOY HEAT EXCHANGER AND CONDENSER TUBES
	Seamless		ASTM	B466/B466M	SEAMLESS COPPER-NICKEL PIPE AND TUBE
	Welded		ASTM	B543/B543M	WELDED COPPER AND COPPER ALLOY HEAT EXCHANGER TUBE
		Condenser Tube	ASTM	B552	SEAMLESS AND WELDED COPPER-NICKEL TUBES FOR WATER DESALTING PLANTS
		Condenser Tube	MILITARY	MIL-T-15005	TUBES, COPPER-NICKEL ALLOY CONDENSER AND HEAT EXCHANGER
	Seamless		MILITARY	MIL-T-16420	TUBE, COPPER-NICKEL ALLOY, SEAMLESS AND WELDED
	Finned		MILITARY	MIL-T-22214	TUBE, CONDENSER AND HEAT EXCHANGER WITH INTEGRAL FINS
		Condenser Tube	SAE	J461	WROUGHT AND CAST COPPER ALLOYS
		Condenser Tube	SAE	J463	WROUGHT COPPER AND COPPER ALLOYS
Wire			MILITARY	MIL-C-15726	COPPER-NICKEL ALLOY ROD, FLAT PRODUCTS (FLAT WIRE, STRIP, SHEET, BAR, AND PLATE) AND FORGINGS

Shanghai HY Industry Co., Ltd has international first-class material production equipment such as high temperature alloy isothermal forging production line, CONSARC vacuum melting furnace, VAR vacuum arc remelting furnace etc., with strong professional ability and highly responsible management team. We are a member of China Application of nuclear energy materials, Member of the International Council of the Aeronautical Sciences，China Electronic Materials Industry Association Magnetic Materials Branch. Years of experience in special alloy. When you have superalloy material inquiry, please contact us without hesitation. Shanghai HY Industry Co., Ltd is Corrosion & fatigue nickel alloy professional manufacturer,We will provide you with sincere and thoughtful service.

C71500（DIN 2.8820，CuNi30Mn1Fe，CW354H，70-30CuNi）

Short Introduction:

Description

C71500（DIN 2.8820，CuNi30Mn1Fe，CW354H，70-30CuNi）

Common applications include:

Condensers

Seawater piping

Power plants

Exchanger shells

C71500 Chemical Composition

Element

Cu(1,2)

Pb

Zn

Fe

Ni(3)

Mn

(1) Cu + Sum of Named Elements 99.5% min. (2) Cu value includes Ag. (3) Ni value includes Co.

Min (%)

0.40

29.0

Max (%)

Rem

0.05

1.0

1.0

33.0

1.0

C71500 Mechanical Properties*

Form

Temper

Temper Code

Tensile Strength

(ksi)

YS-0.5% Ext

(ksi)

Elongation

(%)

Rockwell B scale

Rockwell F scale

Section Size

(in)

Cold Work

(%)

Flat Products

As Hot Rolled

M20

55 Typ

20 Typ

45 Typ

35 Typ

1

Rod

1/2 Hard

H02

75 Typ

70 Typ

15 Typ

80 Typ

1

20

Tube

Nominal Grain Size 0.025 mm

OS025

60 Typ

25 Typ

45 Typ

45 Typ

80 Typ

Nominal Grain Size 0.035 mm

OS035

54 Typ

45 Typ

36 Typ

77 Typ

* Measured at room temperature, 68°F (20°C).

C71500 Physical Properties

Melting Point – Liquidus°F

2260

Melting Point – Solidus°F

Cu^(1,2)

Ni⁽³⁾