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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 |