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Products / Eco Brass® / C87850

  • Bronze Family: Silicon Brass
  • Solids: 1/2"  to 9" OD
  • Tubes: 1" to 16" OD
  • Rectangles: Up to 15" wide
  • Type: Brass, bronze or coppery alloy
  • Shape/Form: Semi-finished, mill stock or near net shapes, anode, bar stock, billet/bloom, squares, hex, plate, profile or structural shape, flats/rectangular bar
  • Benefits: Good machinability, excellent de-zincification corrosion resistance, excellent stress corrosion cracking resistance, good castability, high strength equivalent to stainless steel, excellent warm brittleness cracking resistance and plentiful supply of raw materials
  • » Download C87850 Spec Sheet (.pdf)

Typical Uses

  • Water supply devices, faucets, valves, fittings, precision parts, substitute for stainless steel, shafts, screw, bearings, electronic parts and automobile parts

Similar or Equivalent Specification

CDA ASTM ASARCON SAE AMS Federal Ingot# Military Other Desc
C87850 Eco Brass® B505-08              

Chemical Composition (according to ASTM B505-08)

Cu% Sn% Pb% Zn% Fe% Ni% Sb% P% S% Al% Mn% Si%
Note: Single values represent maximums.
74.00-78.00 0.30 0.09 REM. 0.10 0.20 0.10 0.05-0.20 N/A N/A 0.10 2.70-3.40

Mechanical Properties (according to ASTM B505-08)

Tensile Strength (min) Yield Strength (at .5% extention under load min) Elongation (in 2in. or 50mm min, %) Hardness (min.) Remarks
Ksi MPa Ksi MPa      
65 448 25 172 8 103

Machinability

Alloy Rating Density
C87850 Eco Brass® 70 0.300

Physical Properties (provided by CDA)

  US Customary Metric
  • * Field Strength 16 kA/m
Melting Point - Liquidus 1616 F 880 C
Melting Point - Solidus 1571 F 855 C
Density 0.300 lb/in3 at 68 F 8.3 gm/cm3 @ 20 C
Electrical Resistivity 131 ohms-cmil/ft @ 68 F 21.91 microhm-cm @ 20 C
Electrical Conductivity 80 %IACS @ 68 F 0.046 MegaSiemens/cm @ 20 C
Thermal Conductivity 21.80 Btu · ft/(hr · ft2·°F)at 68F 37.7 W/m · °K at 20 C
Coefficient of Thermal Expansion 10.30 ·10-6 per oF (68-212 F) 18.5 ·10-6 per °C (20-100 C)
Coefficient of Thermal Expansion 10.30 ·10-6 per oF (68-392 F) 18.5 ·10-6 per °C (20-200 C)
Coefficient of Thermal Expansion 10.30 ·10-6 per oF (68-572 F) 18.5 ·10-6 per °C (20-300 C)
Specific Heat Capacity 0.090 Btu/lb/°F at 68 F 377.0 J/kg · °K at 293 K
Modulas of Elasticity in Tension 15200 ksi 104800 MPa

Fabrication Properties (provided by CDA)

Joining Technique Suitability
Soldering Excellent
Brazing Excellent
Oxyacetylene Welding Good
Spot Weld Good
Seam Weld Good
Butt Weld Good
Capacity for Being Cold Worked Poor
Capacity for Being Hot Formed Excellent

Thermal Properties (provided by CDA)

Treatment Temp./Time - US Temp./Time - SI
Stress Temperature 0 -18
Solution Minimum    
Solution Maximum
Solution Time 0.0
Solution Medium None
Precipitation Value    
Precipitation Time    
Precipitation Medium None
Annealing Minimum 932 500
Annealing Maximum 1112 600
Annealing Time  
Hot Works Minimum    
Hot Works Maximum