WELD WIRE & ELECTRODE

TWP57

TWP57 is a chromium-based flux cored wire electrode used to protect equipment and parts from heavy wear and mild-to-moderate direct impact.

TWP57 has a compatible composition that allows it to be applied on a wide array of materials and it maintains good Rockwell Hardness (HRc) and wear ability at elevated temperatures.

KEY PERFORMANCE

CHARACTERISTICS

Applications

TWP57 can be applied to carbon steel, manganese base materials and mild or alloy steels. The maximum recommended deposit thickness of TWP56 is 2 – 3 layers, or 1/4” (6.35mm).

TWP57 is used to cover exposed bolts and seams for installation of T156 wear plate and parts, as well as for small area lining of heavy wearing parts and equipment such as the front lip ‘bull- nose’ of asphalt screeds.

Welding Procedure

TWP57 should only be applied on clean surfaces free of contami- nants. TWP57 electrode should be held verticle to the work piece,and a short-to-medium arc should be maintained.

Depend- ing on parent material, pre-heating is necessary and post weld cooling should be gradual to keep ‘cross-checking’ or stress reliev- ing to a minimum.

For manganese steels, a ‘cushion layer’ is recommended and pre-heating is not recommended. The result- ing deposit is not machinable or forgeable, and grinding is only possible with diamond tools.

TWP57 Wire Welding Parameters

The above is based on a FCAW welding process with DC Reverse polarity, using no shielding gas.

TWP57 Electrode Welding Parameters

The above is based on a SMAW welding process with DC Reverse or AC polarity.

Application Process

OAW – FCAW
(Shielding gas not required)

Packaging - Wire

1/16” (1.6mm) 25kg spools 3/32” (2.4mm) 25kg spools 7/64” (2.8mm) 25kg spools

Rockwell C (HRc) Hardness

Wire layer 1: 59 HRc,
layer 2:63 HRc Electrode: 61 – 63 HRc

Packaging - Electrode

1/8” (3.25 mm) 4.5kg sleeves
5/32” (4.0 mm) 4.5kg sleeves
3/16 (5.0 mm) 5kg sleeves