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C90500 High Tin Bronze Available from Dura-Bar Metal Services #

High Tin Bronze C90500

C90500 High Tin Bronze, SAE 62, Gun Metal Bronze is available from Dura-Bar Metal Services in solids, tubes and rectangles.

Also known as: SAE 62, Gun Metal Bronze, ASTM B505, ASTM B22, SAE J461, SAE J462, CDA 905, AMS 4845.

Chemical Composition
Cu% Sn% Pb% Zn% Fe% Ni% Sb% P% S% AI% Mn% Si%
86.00-
89.00
9.00-
11.00
0.30 1.00-
3.00
0.20 1.00 0.20 1.50 0.05 0.005 N/A 0.005

Typical Uses

Building:
Heavy Construction Equipment
Electrical:
Connectors
Fasteners:
Nuts
Industrial:
Bearings, Bushings, Clamps, Piston Rings, Pump Bodies, Valves, Seal Rings, Worm Gears, Expansion Bearings, Pump Impellers, Valve Bodies, Gears, Gear Blanks, Finishing Dies for Wood Pulp Industry
Plumbing:
Water Conditioners, Steam Fittings

Alloy Properties

Tensile Strength, min 44 ksi 303 MPa
Yield Strength @ .5% ext under load min 25 ksi 172 MPa
Elongation in 2 in. or 50 mm min, %   10
Brinell Hardness, min   N/A
Machinability Rating   30%
  US Customary Metric
Melting Point-Liquidus 1830 F 999 C
Melting Point-Solidus 1570 F 854 C
Density 0.315 lb/cu in
@ 68 F
8.72 gm/cu cm
@ 20 C
Specific Gravity 8.720 8.72
Electrical Resistivity 940 ohms-cmil/ft
@68 F
15.63 microhm-cm
@20 C
Electrical Conductivity 11 %IACS @ 68 F .064 Megmho-cm @ 20 C
Thermal Conductivity 43.2 Btu/sq ft/
ft/hr/degree F @ 68 F
74.8 W/m oK
@ 20 C
Coefficient of
Thermal Expansion
11 10-6 per oF
(68-572 F)
19.8 10-6 per oC
(20-300 C)
Specific Heat Capacity .09 Btu/lb/degree F
@ 68 F
377.1 J/kg oK at 293 K
Modulus of Elasticity
in Tension
15000 ksi 103400 Kg/sq mm
Magnetic Permeability 1 1.0
Joining Technique Suitability
Soldering Excellent
Brazing Good
Oxyacetylene Welding Fair
Gas Shielded Arc Welding Fair
Coated Metal Arc Welding Fair