OK 13Mn
OK 13Mn is an austenitic manganese steel electrode which work hardens under impact and compressive stresses. It is primarily used for surfacing and building up manganese steel components exposed to severe impact and moderate abrasion. Typical applications include crusher plates and rolls, cones and mantles of rotary crushers etc. The interpass temperature should be kept as low as possible.
Typical Tensile Properties
| ISO As welded | ||
| Elongation | Tensile Strength | Yield Strength |
| 20 % | 780 MPa | 480 MPa |
Typical Charpy V-Notch Properties
| ISO As welded | |
| Impact Value | Testing Temperature |
| 70 J | 20 °C |
| 45 J | -20 °C |
| 35 J | -40 °C |
| 25 J | -60 °C |
Typical Weld Metal Analysis %
| Mn | C | Si |
| 12.2 % | 1.08 % | 0.7 % |
Deposition Data
| Diameter | Current | Deposition Rate | Fusion time per electrode at 90% I max | kg weld metal/kg electrodes | Number of electrodes/kg weld metal | Voltage |
| 3.2 x 450 mm | 95-135 A | 1.1 kg/h | 95 sec | 0.60 kg | 36 | 23 V |
| 5.0 x 450 mm | 170-230 A | 1.8 kg/h | 132 sec | 0.60 kg | 15 | 25 V |
| 4.0 x 450 mm | 130-180 A | 1.4 kg/h | 109 sec | 0.60 kg | 24 | 23 V |
| Classifications: | EN 14700, E Fe9 |
| Alloy Type: | Austenitic Mn steel |
| Coating Type: | Lime Basic |
| Welding Current: | AC, DC+ |
