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- OA BK- Mn14
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Welding Wire OA BK Mn14
OA Mn14 Flux cored wire with outstanding impact resistance with low abrasion resistance . it is an austenitic manganese steel deposit which is suitable for multi-layer build up and has excellent work hardening characteristics. It can also be used to join austenitic manganese steels.
Applications
Welding parts of manganese steel that are exposed to impact and shock-like wear Hard facing of mining and rock-crushing machine parts as well as of hard manganese steel . austenitic manganese steel, high impact loads, hammers, crushers, Rock crushing and mining rebuilding, hard facing, rails, crossings, Breaker teeth, etc..Classification
AWS
A 5.21
EN ISO
14700: T Fe 9
DIN
8555: MF-7-250-KNPTypical Weld Metal Analysis %
| C | Mn | Ni | Cr | Si | Fe |
| 0.8-1.2% | 16% | 0.4-0.7% | 3.5-4.5% | 1% | Bal. |
Mechanical Properties (As Welded)
| Abrasion Resistance |
Impact Resistance |
Deposit Layers |
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| Low |
Outstanding |
Multiple |
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| HARDNESS |
58 - 63 HRC |
| HARDNESS AS DEPOSITED |
170 - 210 HB |
| WORK HARDNESS |
350 - 450 HB |
General Information
Welding process
Mig/Mag welding (FCAW)
Alloy Type
Austenitic Manganese Steel
Re-drying Temperature
Not 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.