Mixed welding applications including the welding of mild,
stainless, hardenable, and armour steels to themselves
or each other with or without preheat. Tolerance to
dilution (resistance to hot cracking) is provided by the high
manganese content, unlike armour welding and 309 types
which depend on a high ferrite level. In some cases, they
may offer an alternative to high nickel weld metal in joints
between cast iron and stainless steels. Weldments subject
to PWHT retain ductility with satisfactory toughness down
to -50°C. Reasonable scaling resistance up to 850°C.
Can be used as buffer layers to weld or reclaim 13% Mn
steel used in rock crushing plant and earth
Has also been found satisfactory as buffer layer on cast iron
prior to hard surfacing.
Use as surfacing consumable which work hardens from 200
to 400 HV, suitable for repair of alloy rails, crossing parts,
frogs etc. without need for preheat, however, the workhardening
rate is lower than 13% Mn steel and overlays of
more than 1 layer may suffer unacceptable collapse under
heavy rolling loads.
Strong tough austenitic weld metal composition
for dissimilar joints and buffer layers.
Consists of austenite with approximately 5FN.
Materials to be welded
Dissimilar combinations of C-Mn, stainless,
hardenable, wear-resistant and armour steels. Suitable for 13% Mn steel also known as Hadfield steel.