is a high-carbon steel which is suitable for hard wearing applications which are not
sufficiently severe to warrant more sophisticated steels. This material is used for liner plates and scraper blades, preferably fitted
by drilling and bolting.
NORMAL ANALYSIS
0.4% - 0.55% C, 0.7% - 1.0% Mn, 0.15% - 0.35% Si
TYPICAL HARDNESS
+- 200 BHN. (Not measured or guaranteed).
FLAME CUTTING
May be cut with pre-heating recommended for thicker sections.
WELDABILITY
is a difficult steel to weld due to its high carbon equivalent.
Welding should be used for joining purposes only and is not recommended under high stress conditions.
Hydrogen controlled electrodes should be used with a minimum preheat of 250oC. For austenitic electrodes, use a minimum preheat
of 150oC. Cooling rates after welding should be controlled.
SHEARING
can be sheared in thicknesses up to 25 mm, provided sufficient power is available. Cutting
edges must be sharp and clearances set correctly.
PUNCHING
up to 12 mm can be punched provided tools are sharp and clearances are set correctly.
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