28mm Diameter x 330mm Long Metric Silver Steel (BS1407)
Silver steel can be used in numerous applications including screwdrivers, punches, shafts, axles, pinions, pins, die posts, instrument parts, model parts, taps and drills for mild steel, engravers’ tools, and fine cutters.
Typical Analysis
| Carbon | 1.00% | Silicon | 0.30% |
| Chromium | 0.40% | Manganese | 0.35% |
Tolerances
Produced and supplied as a precision ground bar with a surface finish better than 0.6 microns silver steel round bar is supplied to the following tolerances.
| Imperial Tolerances | Metric Tolerances |
|---|---|
| Up to 1” +/- 0.00025″ | Up to 25mm +0/-0.015mm |
| Over 1” +/- 0.0005″ | Over 25mm +0/-0.025mm |
Hardening
Heat uniformly to 770-780°C until heated through. Quench in water.
Tempering
Temper according to the purpose for which the parts are required, generally between 150-300°C.
Heat Treatment
Silver steel bar is supplied annealed. When hardening consideration should bee given to heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each silver steel component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of silver steel bar.
