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B 477 Grade D


B 477 Grade D material is SAE B 477 (1997) Gold-Silver-Nickel Electrical Contact Alloy Gold-Silver-Nickel Electrical Contact Alloy.

Chemical composition of B 477 Grade D, B 477 Grade D mechanical properties, B 477 Grade D datasheet, B 477 Grade D equivalent grade, Heat treatment and temperature process of B 477 Grade D.


B 477 Grade D property sheet

B 477 Grade D Spec.

SAE B 477 (1997)
Gold-Silver-Nickel Electrical Contact Alloy

Chemical Composition of B 477 Grade D

C: Max 0.01
Si: Max 0.05
Mn: Max 1.50
P: Max 0.04
S: Max 0.01
Ni: Max remaining
Cr: 0.50 1.50
Al: 0.10 0.50
Cu: Max 0.50
Ti: Max Min
Fe: 1.00 6.00
Mo: 26.00 30.00
Co: Max 2.50

Mechanical Properties of B 477 Grade D

Rp0.2 (MPa) 797 (≥)
Rm (MPa) 184 (≥)
AKV (J) 21
A (%) 22
Z (%) 43
Hardness HBW 342

B 477 Grade D shape and dimensions

B 477 Grade D Round bar: 1mm-800mm
B 477 Grade D Square bar: 10mm * 10mm-600mm *600mm
B 477 Grade D Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
B 477 Grade D Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
B 477 Grade D Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
B 477 Grade D Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes