Postalloy® 2512-B

Postalloy® 2512-B: Conforms to AWS CoCr-B. Slightly harder and more wear resistant than 2506-B, due to increasing level of hard chromium carbides, but its impact resistance is somewhat lower and is also tougher to machine. Higher tungsten content improves the hot hardness properties at higher temperatures. Weld deposits also have a greater tendency to relief check if welding procedures are not closely monitored.

Specifications

Product Type

  • Tig
  • Oxy-fuel
  • Cobalt Base Hardfacing Alloy

Applications

  • Saw teeth
  • Extrusion bars
  • Chain saw bars

Weld Deposit Properties

Deposit Thickness:
2 layers
Hardness:
44Rc - 52Rc

Welding Parameters

Current Type : DC Electrode Negative

Volts Amps Gas Tig
15-25 50-80 100% Ar .045" (1.2mm)
15-25 55-90 100% Ar 1/16" (1.6mm)
15-25 75-100 100% Ar 3/32" (2.4mm)
15-30 90-120 100% Ar 1/8" (3.2mm)
15-30 120-140 100% Ar 5/32" (4mm)
15-30 140-160 100% Ar 3/16" (4.8mm)
Oxyacetylene Tip Size Flame
.045" (1.2mm) 3 3x-4x
1/16" (1.6mm) 3-4 3x-4x
3/32" (2.4mm) 3-4 3x-4x
1/8" (3.2mm) 4 3x-4x
5/32" (4mm) 4 3x-4x
3/16" (4.8mm) 5 3x-4x

Welding Procedure:

Packaging Options

Diameter Standard Packaging
All Diameters 10 lb (4.54kg) tubes