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Home »  Brass Tube for Automobile Bush

Brass Tube for Automobile Bush

We at Metal Alloys Corporation Proudly present an Innovative Solution for the Bushings applications. Traditionally the bush / sleeve bearing are made from various Bronze Hollows which are prepared by Sand Casting or Gravity Casting method. We present Silicon Brass – CuZn31Si1 an alternate to costlier Bronze Hollows with Higher Hardness, Better Density and Higher turning capacity.

Product Details :
Minimum Order Quantity200 Kilogram
Hollow SectionsCircular

Chemical :
Chemical SpecificationsCuPbSiNiFeOthersZn
 66-700.8 Max0.7 - 1.30.5 Max0.4 Max0.05 MaxRem

Difference :
Seamless Tube Aluminum Bronze (Casted Hollow)
Chemical Specifications Cu Pb Si Ni Fe Others Zn Cu Al Ni Fe Mn Others
66-70 0.8 Max 0.7 - 1.3 0.5 Max 0.4 Max .05 Max Rem 81 11.1-
0.5 Max 3.0 - 5.0 3.5 Max 0.50
Technical Specifications As per EN 12449 (CW708 R) As per ASTM B148 UNS C95400 (As Cast)
UTS 550-710 MPa UTS 515 MPa
0.2% Proof Strength > 500 MPa 0.2% Proof Strength > 400 MPa
Elongation > 7 % Elongation 6 %
Hardness 150-180 HB Hardness 120-150 HB
Grain Structue
  • Alpha & Beta phase uniformaly distributed
  • Grain structure is compact and unidirectional
  • Grain size is less then 0.025µ mm

  • Alpha & Beta phase non uniformly distributed
  • Scattered Grain structure
  • Grain size
Manufacturing Process Seamless Extrusion of Hollows
  • Higher compactness
  • Better hardness
  • Surface roughness (RA) of finished product can be easily achieved with minimum turning loss.
Sand / Gravity Casting Methods
  • Low compactness
  • Higher porosity
  • Higher machining cost
Machining Better machinability as brass alloy with minimum Process loss. Due to alloy composition higher machining Required for achieving desired component.

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