- OA BK- TIC-O

Welding Wire OA BK TIC O

BK OA TIC –O Martensitic Chromium-Titanium alloy designed to resist high stress abrasion with heavy impact. Deposits usually do not relieve cracks. Cored wire for hardfacing parts that have to resist high impact loads in combination with severe abrasion. The weld deposit contains extremely hard titanium carbide particles in a high chromium martensitic matrix.The combination of the tough matrix and the very hard special carbides gives an abrasion resistant deposit that is not susceptible to high impact loads.

Applications

Cored wire for hard-facing parts that have to resist high impact loads in combination with severe abrasion. The combination of the tough matrix and the very hard special carbides gives an abrasion-resistant deposit that is not susceptible to high impact loads. Augers, scraper blades, mixer tires, brick dies, hammers, earthmoving equipment, crushing equipment, mining equipment, shovel buckets, slurry pipes, cane knives and shredders Crusher rollers, crusher hammers, asphalt mixer blades, agricultural tools, shovel bucket teeth, and lips, bulldozer blades, cane knives and shredders, bed knives in the wood pulp indu

Classification

AWS

A 5.21

EN ISO

14700: T Fe8

DIN

8555: MF 6-GF-60-GP

Typical Weld Metal Analysis %

C	Mn	Si	Cr	Ti	Mo	Ni	Fe
1.8%	0.8%	0.2%	6.1%	5.5%	1.4%	1%	Bal.

Mechanical Properties (As Welded)

Abrasion Resistance	Impact Resistance	Deposit Layers
Extreme	medium	Multiple

Hardness58 – 63 HRC

General Information

Welding process

Mig/Mag welding (FCAW)

Alloy Type

C-Cr-Nb Carbide basis

Re-drying Temperature

At Require

Welding Position

PA, PB, PC

Cleaning

Remove all cracks and fatigued metal by grinding.

Polarity

AC or DC

Welding Parameters

Diameter (mm)	Voltage (V)	Current (A)
1.6	20-30	180-320
2.4	26-32	200-400
2.8	29-32	350~450

Instruction:

Weld with low heat input.

Use a stick-out (distance from the contact tip to the extremity of the wire) of 20 to 50 mm (1-2") for open arc welding.

For a correct wire feed, use appropriate drive rolls for cored wire in the wire feeder and a water-cooled torch that is smoothly inclined. On crack-sensitive steels or for hard facings where heavy impact occurs, use a base layer of OA 4370.

Open arc welding Stick-out: 30 - 40 mm (1,18 - 1,57") Wire feed: 5m/min (197"per min) Remove all worn-out material. Preheat high carbon and low alloyed steels. When welding manganese steels, the temperature should remain below 300 °C (570 °F).