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| INTERNATIONAL CLASSIFICATIONS |
AWS/ASME A 5.13 EFeMnC
EN14700 EFe9
DIN 8555: E7-UM-250 KP
| FEATURES & APPLICATIONS |
For repair of rail equipment and construction equipment manufactured of manganese steel.
- Joining and cladding electrode for manganese steel that can be flame cut.
- Spray transfer allows for smooth uniform overlays.
- Work hardens easily in service.
- Rare alloy that can be flame cut.
- Also available as a special tubular MIG wire as product code 7248.
| All Weld Metal Analysis (Typical Weight %) |
Microstructure: In the as deposited condition the microstructure consists of a soft manganese alloy austenite which rapidly work hardens under impact loading.
Flux Color: Dark Grey
| C | Ni | Mn | Si | S | P | Cr | Fe |
| .60 | 3.65 | 16.0 | .08 | .01 | .015 | 3.75 | bal |
| Typical Mechanical Properties |
Undiluted Weld Metal Maximum Value Up to:
Tensile Strength 116,000 PSI (800 MPa)
Elongation 38%
Hardness Brinell 170-220, Rockwell B87-96
Vickers 180-230
Work Hardness Brinell 380-550 Rockwell C43-47
Vickers 400-580
| Welding Current & Instructions |
Recommended Current: DC Reverse (+) or AC
| Diameter (mm) | 1/8 (3.25) | 5/32 (4.0) | 3/16 (5.0) |
| Minimum Amperage | 90 | 125 | 160 |
| Maximum Amperage | 125 | 170 | 225 |
Welding Techniques: Clean metal of oils and fatigued sections. Most importantly, do not allow weld interpass temperature to exceed 500°F (260°C).
Welding Positions: Flat, Vertical up, Horizontal, Overhead
Deposition Rates:
| Diameter (mm) | Length (mm) | Weldmetal/ Electrode | Electrodes per lb (kg) of Weldmetal | Arc Time of Deposition min/lb (kg) | Amperage Settings | Recovery Rate |
| 1/8 (3.25) | 14″ (350) | .94 oz (26g) | 17 (38) | 24 (53) | 110 | 120% |
| 5/32 (4.0) | 14″(350) | 1.45 oz (41g) | 11 (24) | 19 (42) | 150 | 120% |
| 3/16 (5.0) | 14″ (350) | 2.3 oz (64g) | 7 (16) | 13 (29) | 195 | 120% |
| APPROXIMATE ELECTRODE PACKAGING & DIMENSIONS |
| Diameter (mm) | 1/8 (3.25) | 5/32 (4.0) | 3/16 (5.0) |
| Length (mm) | 14″ (350) | 14″ (350) | 14″ (350) |
| Electrodes / lb | 12 | 8 | 6 |
| Electrodes / kg | 26 | 18 | 13 |