Brass Copper Castings India
Tin Bronze Alloy C92200 Navy M


Copper Alloy No. C92200
Navy M Bronze CDA 922 , SAE 622 Steam Bronze , 88-6-2-4
ASTM B 505 , ASTM B 271
Chemical Composition % by weight
Element Nominal Minimum Maximum
Aluminum - - .005
Antimony - - .25
Copper 88 86 90
Iron - - .25
Lead 1.5 1 2
Nickel - - 1
Phosphorus - - .05
Silicon - - .005
Sulfur - - .05
Tin 6 5.5 6.5
Zinc 4.5 3 5

Applications

Valves, fittings, pressure containing parts for use up to 550 F.

Mechanical Properties

M07 - As Continuous Cast

Hardness* Brinell Hardness (500 kg load) 65
Tensile Strength** KSI 38 min
Yield Strength ** KSI (0.5% Ext. under load) 25 min
Elongation** % in 2 inch 18 min

**Test values are nominal approximations and depend on specimen size and orientation.

Physical Properties

Thermal Conductivity BTU/ (sq ft-ft-hr-F) 40.2
Specific Heat BTU/lb/ºF @ 68F .09
Thermal Expansion Per °F from 68 F to 572 F .000010
Density lb/cu in @ 68 F .312
Electrical Conductivity* (Annealed) % IACS @ 68 F 14.3
Modulus of Elasticity KSI 14,000

*Volume basis

Fabrication Practices

Stress relieving temperature 500 F or 260 C
Time at temperature 1 hour per inch of section thickness
Responds to heat treatment No
Machinability rating (Free Cutting Brass=100) 42
Suitability for being joined by: Soldering/Excellent
Brazing/Excellent*
Oxyacetylene Welding/Fair
Gas Shielded Arc Welding/Fair
Coated Metal Arc Welding/Fair