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Postalloy®
BR5-SA
Description
POSTALLOY® BR5-SA is a low alloy tubular welding wire for submerged-arc welding. This alloy is designed specifically for brake rims on oilfield drilling rigs. Proper welding procedures, including proper preheat and postheat, should be followed to avoid circumferential cracks. POSTALLOY® BR5-SA is limited to four layers. For more than four layers an under base of POSTALLOY® 2891-SA should be used. Tungsten Carbide tools are required for machining.
Specifications
Product Type
Wire: Submerged-arc

Weld Deposit Properties
Hardness  
44-47Rc
Deposit Layers  
3-4
Preheat may be required for certain low alloy, higher carbon steels  
Machinable  

Applications
Oilfield brake rims
Rollers
Mine car wheels
Charging car wheels
Idlers
Arch wheels
Steel mill table rolls

POSTALLOY® BR5-SA    Welding Parameters
 
Current: DC Reverse Polarity
Diameter Amps Volts Stick Out
5/32" (4.0mm)425-54029-321┬╝"-1┬Ż"(33-38mm)

Welding ProcedureFlux: Neutral
Position: Flat
Packaging Options
Diameter
Standard Packaging
1/16" (1.6mm)
500 lb drum