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 (%).
| 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 |
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 |
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 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.
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