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VRN 200
VRN 200 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
VRN 200 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
VRN 200 can be sheared in thicknesses up to 25 mm, provided sufficient
power is available. Cutting edges must be sharp and clearances set
correctly.
PUNCHING
VRN 200 up to 12 mm can be punched provided tools are sharp and clearances
are set correctly.
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