Hand Hacksawing of Stainless Steel
Generally used for random cutting of light gauge material, small diameter bar, tube and pipe. A blade with a wavy set is preferable. For thin gauge sheet and thin wall tubes a fine 32 teeth per 25mm blade is necessary. As the thickness of the material being cut increases, the coarseness of the blade should be increased to 24 teeth per 25mm.
Power Hacksawing
Cutting fluid should be flooded on the cut to maximise the cooling, particularly in cutting the Austenitic grades.
More than one tooth should be in contact with the work at all times. This necessitates small pitched blades for cutting thinner gauges and small diameters. As the material thickness or diameter increases the tooth spacing should increase to give better clearance and to minimise chip packing:
Up to 6mm thick/diameter 10 teeth per 25mm
6 - 20mm thick/diameter 10-8 teeth per 25mm
20 - 50mm thick/diameter 6 teeth per 25mm
over 50mm thick/diameter 4 teeth per 25mm
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