FusoFlex

Nichromang-B:

A super-heavy coated low-hydrogen type austenitic stainless steel electrode;
Deposits weld metal of nominal composition 18Cr-8Ni-5Mn; Pleasing operating characteristics - stable arc, low spatter
smooth & steady fusion, easy deslagging, weld beads of regular profile & good appearance
Core wire is of mild steel & hence permits use of relatively high currents
High metal recovery at 130-140%, resulting in fast deposition
Weld metal combines a high level of ductility & toughness with abrasion resistance, heat resistance up to 800°C.

Identification:Name Printed

Applications:

Joining austenitic manganese steel (12% Mn) to carbon steel;
Repairs in austenitic manganese steel
Joining difficult steels, such as armour steel
Surfacing parts subject to wear
Buffer layers on carbon steel & difficult steels before hardfacing with plain chrome steels or air hardening alloy steels of high hardness.

Carbon	Manganese	Silicon	Chromium	Nickel
0.13	5.0-7.0	1.0	17.5-19.0	8.0-10.0

Ultimate Tensile Strength kg/mm²	Elongation (L=5d)%	CVN Impact Value Joules at 20°C
60-69	35-45	80-120

Redry electrodes at 250-300°C for one hour before use.
Clean the weld area free of any surface contaminations.
Control heat input especially in welding of austenitic manganese steel.
As the alloying elements are introduced from the coating, ensure that the coating is intact at the time of every start & restart.