Silver Steel

Silver steel is common tool steel that is supplied as a centerless ground round bar (with tolerances similar to that of drill bit). It has good machinability, offering high hardness and wear resistance and is widely used in general engineering. The name silver steel came about because of the silver appearance due to the addition of chromium which adds to its strength and hardness. Silver Steel will rust easily when exposed to air or moisture. 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.

M&G INDUSTRIAL carries in 500mm lengths
2mm Water hardened silver steel rod
2.5mm Water hardened silver steel rod
3mm Water hardened silver steel rod
3.5mm Water hardened silver steel rod
4mm Water hardened silver steel rod
5mm Water hardened silver steel rod
6mm Water hardened silver steel rod
8mm Water hardened silver steel rod
10mm Water hardened silver steel rod
12mm Water hardened silver steel rod
16mm Water hardened silver steel rod
20mm Water hardened silver steel rod
1/16 Water hardened silver steel rod
1/8 Water hardened silver steel rod
5/32 Water hardened silver steel rod
3/16 Water hardened silver steel rod
1/4 Water hardened silver steel rod
5/16 Water hardened silver steel rod
3/8 Water hardened silver steel rod
1/2 Water hardened silver steel rod
5/8 Water hardened silver steel rod
3/4 Water hardened silver steel rod

Silver Steel BS1407 Chemical Composition
Analysis Range (%) Typical Analysis (%) C .95/1.25 1.13. * Si .40 max .22 * Mn .25 / .45 .37 * P .045 max .014 * S .045 max .018 * Cr. .35 / .45 .43

Silver Steel BS1407 Size Range Metric/Imperial Diameter Range: 2mm – 50mm 1/16” – 2”
Diameter Tolerance < 1” ± 0.00025" * 1” - 2” ± 0.0005" * < 25mm + 0/-0.015mm * 25mm - 50mm + 0/-0.025mm * The surface finish is better than 25µ inch (0.6 microns). Silver Steel Hardening Heat slowly to 760 - 800°C using the upper end of the temperature range for lower carbon contents and lower end of temperature range for higher carbon contents. Austenitize until the temperature is uniform. Quench into well agitated water. The approximate quench hardness is 65 to 69 Rc. Silver Steel Tempering Temper immediately after hardening preferably before the tool reaches room temperature. Temper for a minimum of 1 hour at temperatures between 180 - 350°C, dependent upon the final hardness required.

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