1248 – Flame Cuttable Manganese Electrode

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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

CNiMnSiSPCrFe
.603.6516.0.08.01.0153.75bal
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 Amperage90125160
Maximum Amperage125170225

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/ ElectrodeElectrodes per lb (kg) of WeldmetalArc Time of Deposition min/lb (kg)Amperage SettingsRecovery Rate
1/8 (3.25)14″ (350).94 oz (26g)17 (38)24 (53)110120%
5/32 (4.0)14″(350)1.45 oz (41g)11 (24)19 (42)150120%
3/16 (5.0)14″ (350)2.3 oz (64g)7 (16)13 (29)195120%
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 / lb1286
Electrodes / kg261813