Copper-Nickel-Tin... - Plated Wire Supplier

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Copper-Nickel-Tin...

COPPER-NICKEL-TIN C72500

COMPOSITION
COPPER-NICKEL-TIN C72500

ELEMENT PERCENT
NOMINAL MINIMUM MAXIMUM
Copper
88.2
-
-
Lead
- - .05
Iron - - .60
Zinc - - .50
Nickel 9.5 8.5 10.5
Manganese - - .20
Tin 2.3 1.8 2.8
Copper plus elements specified -
99.8
-

 

PHYSICAL PROPERTIES
COPPER-NICKEL-TIN C72500

HEAT TREATED CONDITION

ENGLISH UNITS

METRIC UNITS

Melting Range

1940-2065°F

1060-1130°C

Density

.321 lb/cu in. @ 68°F

8.89 gm/cm@ 20°C

Specific Gravity

8.89

8.89

Coefficient of Thermal
Expansion

.0000092 per °F (68-572°F)

.0000165 per °C (20-300°C)

Thermal Conductivity

31 BTU/sq ft/ft/hr/°F @ 68°F

.13 cal/sq cm/cm/sec/°C @ 20°C

Electrical Resistivity

94.3 Ohms circ mil per ft @ 68°F

15.7 microhm - cm @ 20°C

Electrical Conductivity

11% Copper IACS @ 68°F

.064 megohm cm @ 20°C

Modulus of Elasticity
(tension)

20,000 KSI

14,100 kg/sq mm

Modulus of Rigidity
(torsion)

7,500 KSI

5,200 kg/sq mm

Annealing Temperature

1200-1475°F

650-800°C

MECHANICAL PROPERTIES
COPPER-NICKEL-TIN C72500

For Round and Square Wire
DESIGNATION TENSILE STRENGTH

YIELD STRENGTH
.2% Offset

%
ELONGATION
in 10 in.

STD FORMER KSI*
nominal
MPa**
nominal
KSI* MPa**
- Annealed (0.15mm) 60 410 25 170 35
H01 Quarter Hard (1/4H) 80 550 - - -
H02 Half Hard (1/2H) 90 620 - - -
H06 Extra Hard (XH) 100 690 - - -
H14 Super Spring 120 8.30 - - -

Range - apply ą5 KSI to hardest material rising to ą8 KSI on annealed.

MECHANICAL PROPERTIES
COPPER-NICKEL-TIN C72500

For Rolled Flat Wire other than Square
DESIGNATION TENSILE STRENGTH
NOMINAL
YIELD STRENGTH .2% Offset %
ELONGATION IN 10 in.
STD FORMER KSI* MPa** KSI* MPa**
- Annealed (0.15mm) 55 380 22 151 35
H01 Quarter Hard (1/4H) 55-75 380-515 58 399 18
H02 Half Hard (1/2H) 65-80 450-550 69 475 6
- Three Quarter Hard (3/4H) 77 - 75 517 5
H04 Extra Hard (XH) 80-95 550-655 86 592 2
H08 Spring 85-100 585-690 90 620 1
H14 Super Spring 100-125 690-860 108 745 1

* 1 KSI equals 1,000 PSI
** 1 KSI equals 6.894,757 MPa
MPa equals Megapascal
†Values for reference only.

COPPER-NICKEL-TIN C72500

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