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Product Reference View detailed information about Postalloy® Hardfacing Products
POSTALLOY®
2834-SPL
Description
Pulverizing Roll
Pulverizing Roll
Postalloy® 2834-SPL is a high chromium hardfacing alloy that produces a high volume fraction of wear resistant chromium carbides in a tough alloy matrix that is designed for high abrasion or abrasion combined with moderate impact. Deposit will polish in service and is heat resistant to 1000°F (538°C). Use on carbon, manganese, 300 series stainless, and low alloy steels.
Specifications
Product Type
Wire: Metal-cored, open-arc or gas-shielded
Deposits are slag-free.
Electrode equivalent: Postalloy® 214 or Postalloy® 215HD

Weld Deposit Properties
Average Hardness: 55-60Rc
Deposit Thickness: 1-3 layers
Deposits cannot be flame-cut
Deposits will check-crack to relieve stresses

Applications
Tampers
Dredge bucket lips
Dredge pump side plates
Coal pulverizing hammers
Grizzley bars
Dredge cutter head & teeth
Bulldozer blades
Crusher rolls
Shredder & Fibrizer Hammers
Clamshell bucket lips
Dragline buckets
Crusher jaws and cones
Power shovel buckets and teeth
Gyrator crusher mantles
Road rippers and scraper blades
Muller tires
Cage pins

POSTALLOY® 2834-SPL    Welding Parameters
Current: DC Straight or Reverse Polarity
Diameter
Amps
Volts
Stick Out
.045" (1.1mm)
140-200
18-24
3/4"-1"(19-25mm)
1/16" (1.6mm)
170-300
22-28
1"-1¼"(25-32mm)
3/32" (2.4mm)
240-400
25-29
1"-1¼"(25-32mm)
7/64" (2.8mm)
250-450
26-32
1"-1½"(25-38mm)

Welding Procedure
When welding out of position, use .045 with reverse polarity and the lower range of amperages and voltages. Weld vertical down with 3/4"(18mm) wide weave beads. A gas cover will be helpful, especially when using a constant current power source and voltage sensing feeder.

Electrode equivalent: Postalloy® 214 or Postalloy® 215HD

Packaging Options
Diameter
Standard Packaging
Special Packaging Available
.045" (1.1mm)
25 lb spool
110 lb drum, 220 lb drum
1/16" (1.6mm)
25 lb spool
55 lb coil, 110 lb drum, 220 lb drum
3/32" (2.4mm)
55 lb coil, 110 lb drum, 220 lb drum
7/64" (2.8mm)
55 lb coil, 110 lb drum, 220 lb drum