Little Falls Alloys
                   171-191 Caldwell Avenue  •  Paterson, NJ 07501
             (973)-278-1666   •  fax (973)-278-7345
       Toll Free (888) LFA-WIRE
info@lfa-wire.com

10% NICKEL SILVER,  C74500   ALLOY  E

COMPOSITION
10% NICKEL SILVER,  C74500    ALLOY  E
ELEMENT PERCENT
NOMINAL MINIMUM MAXIMUM
Copper 65.0 63.5 66.5
Lead - - .05
Iron - - .25
Zinc 25.0
23.0		 Remainder
Nickel 10.0
12.0		 9.0
11.0		 11.0
13.0
Manganese - - .50
Total Other Elements - - .50

 

PHYSICAL PROPERTIES
10% NICKEL SILVER,   C74500    ALLOY E
HEAT TREATED CONDITION ENGLISH UNITS METRIC UNITS
Melting Point 1870°F 1020°C
Density .314 lb/cu in. @ 68°F 8.69 gm/cm@ 20°C
Specific Gravity 8.69 8.69
Coefficient of Thermal Expansion .0000091 per °F (68-572°F) .0000164 per °C (20-300°C)
Thermal Conductivity 26 BTU/sq ft/ft/hr/°F @ 68°F .11 cal/sq cm/cm/sec/°C @ 20°C
Electrical Resistivity (Annealed) 115 Ohms circ mil per ft @ 68°F 19.2 microhm - cm @ 20°C
Electrical Conductivity (Annealed) 9.0% Copper IACS @ 68°F .052 megohm cm @ 20°C
Modulus of Elasticity (tension) 17,500 KSI 12,300 kg/sq mm
Modulus of Rigidity  (torsion) 6600 KSI 4600 kg/sq mm
Annealing Temperature 1100-1400°F 600-750°C

1 KSI equals 1,000 PSI

MECHANICAL PROPERTIES
10% NICKEL SILVER,   C74500  ALLOY  E
For Round, Half Round and Square Wire
TEMPER TENSILE STRENGTH
STD. FORMER KSI* nominal MPa** nominal
- Dead Soft Annealed - -
- Soft Annealed - -
- Light Annealed - -
H01 Quarter Hard (1/4)H 73-88 505-605
H02 Half Hard (1/2H) 88-103 605-610
H04 Hard (H) 108-123 740-850
H08 Spring  .020-.0253
             .0253-.0625		 130 min.
125 min.		 900 min.
860 min.

 

MECHANICAL PROPERTIES
10% NICKEL SILVER,    C74500  ALLOY E
For Flat Wire Other Than Square
TEMPER TENSILE STRENGTH YIELD STRENGTH
.2% Offset
STD. FORMER KSI* nominal MPa** nominal KSI* nominal MPa** nominal
- Dead Soft Annealed - - - -
- Soft Annealed 56 - 21 144
- Light Annealed 61 - 28 193
H01 Quarter Hard (1/4H) 56-73 385-505 45 310
H02 Half Hard (1/2H) 67-82 460-565 60 413
H04 Hard (H) 80-94 550-650 76 524
H06 Extra Hard )XH) 89-102 615-700 81 558
H08 Spring 95-108 655-740 85 586

10% NICKEL SILVER,  C74500  ALLOY  E
ASTM Material Specifications

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