Phosphor Bronze, C50700 Grade E - Plated Wire Supplier

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Phosphor Bronze, C50700 Grade E

PHOSPHOR BRONZE, C50700 Grade E

COMPOSITION
PHOSPHOR BRONZE C50700 GRADE E

ELEMENT PERCENT
NOMINAL MINIMUM MAXIMUM
PERCENT C50700
Tin 1.75 1.50 2.0
Phosphorus - .03 .35
Iron - - .10
Lead - - .05
Zinc - - .30
Copper & Tin & Phosphorus - 99.5 -

PHYSICAL PROPERTIES
PHOSPHOR BRONZE C50700 GRADE E

ENGLISH UNITS METRIC UNITS
Melting Range 1900-1970°F 1035-1075°C
Density .321 lb/cu in. @ 68°F 8.89 gm/cm@ 20°C
Specific Gravity 8.89 8.89
Coefficient of Thermal Expansion .0000099 per °F (68-392°F) .0000178 per °C (20-200°C)
Thermal Conductivity 120 BTU/sq ft/ft/hr/°F @ 68°F .49 cal/sq cm/cm/sec/°C @ 20°C
Electrical Resistivity (Annealed) 21.7 Ohms circ mil per ft @ 68°F 3.59 microhm - cm @ 20°C
Electrical Conductivity (Annealed) 48% Copper IACS @ 68°F .278 megohm cm @ 20°C
Specific Heat .09 BTU/lb/°F @ 68°F .09 cal/gm/°C @ 20°C
Modulus of Elasticity (tension) 17,000 KSI 12,000 kg/sq mm
Modulus of Rigidity (torsion) 6400 KSI 4500 kg/sq mm
Annealing Temperature 900-1200°F 475-650°C
Stress Relief Temperature (1hr.) 300-450°F 150-230°C
For Rolled Flat Wire Other Than Square, C50700 Grade E
DESIGNATION TENSILE STRENGTH
STD FORMER KSI* 
nominal
MPa** 
nominal
O61 Annealed (A) 45 310
HO2 Half Hard (1/2H) 60 414
HO4 Hard (H) 70 482
HO6 Extra Hard (XH) 82 565
HO8 Spring 90 620
H1O Extra Spring 95 655

*1KSI equals 1,000 PSI
** 1KSI equals 6.894,757 MPa (Megapascal)

PHOSPHOR BRONZE C50700 Grade E

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