Silver Steel Round Imperial Water Hardened

• Silver Steel is a high carbon content alloy that has high wear resistance and hardenability.
• The chromium content adds to the strength and hardness.
• It is machineable and is a popular material for a large range of applications.

Silver Steel BS1407 Chemical Composition

Analysis Range (%)Typical Analysis (%)C.95/1.251.13Si.40 max0.22Mn.25 / .450.37P.045 max0.014S.045 max0.018Cr.35 / .450.43

Silver Steel BS1407 Size Range

MetricImperialDiameter Range:2mm - 50mm1/16" - 2"

DiameterTolerance< 1"± 0.00025"1" - 2"± 0.0005"< 25mm+ 0/-0.015mm25mm - 50mm+ 0/-0.025mm

The surface finish is better than 25µ inch (0.6 microns) cla.

Silver Steel Hardening.

• Heat slowly to 760 - 800°C using the upper end of the temperature range for the lower carbon contents and the lower end of the 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.