WELDING & CUTTING
India
 
Home > Products > Reclamation Consumables > Conventional Hardfacing Alloys > Duromangan
 
 
 
 
DUROMANGAN
 
Work Hardening for Extreme Impact and Abrasion
A basic coated electrode depositing an austenitic manganese steel weld metal. The deposit is highly resistant to heavy impact and abrasion. The deposit is work hardenable. The electrode is recommended for surfacing of worn-out austenitic manganese steel parts. It can also be used to give impact protection on carbon steels.
 
ALLOY BASE
Fe, Mn, Ni, Cr
 
SPECIAL FEATURES
  • Build-up is free from cracks (with proper welding procedure)
  • Superior arc stability than available grades of Mn Steel electrodes
  • It is very easy to use in all positions
APPLICATIONS
Austenitic manganese steel components, crusher jaws, crusher hammers, crusher mantles, dredger bucket teeth, cement grinder rings, manganese steel railway points & crossings, manganese steel components used in the mining industry.
 
PROPERTIES
Hardness : As deposited : 24-26 HRC
  Work hardened : 43-45 H RC
 
WELDING PROCEDURE
  • The surface to be welded should be without prior work hardening
  • 14% Mn steel should never be preheated for welding
  • Welding should be done in stringer beads directing the arc towards the weld pool keeping the heat input to the base metal minimum. Skip welding / back step welding can also be adopted
  • The weld bead can be peened with ball pen hammer immediately after welding
  • Quenching has no adverse effect on welding and should be adopted whenever possible after slag removal and peening. If possible the Mn steel job can be submerged in water during welding
 
CURRENT RANGE : (AC 70, DC+/-)
 
Size (mm) Length (mm) Current Range (Amp)
4.00 450 130-170
5.00 450 160-220
 
 
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