635M15
£296.10
8620 - Low Alloy Nickel-Chromium Case Hardening Steel
Surcharge
Scrap has fallen again for June 2019 on the back of reduced demand. Combined with slight falls in alloys, this has seen an overall reduction in surcharges this month.
Surcharge information as listed via Liberty Speciality Steels where possible, other based on mean chemical analysis for the given grade.
£307.03 per tonne
Surcharge Price History for 8620
| JUN 18 | SEP 18 | DEC 18 | MAR 19 | TODAY |
|---|---|---|---|---|
| £349.18 | £371.50 | £367.25 | £336.05 | £307.03 |
Description
8620 grade steel is a low alloy case hardening steel.
After carburising / carbonitriding and hardening, it produces a hard wear resistant case with a tough core and good resistance to shock. The ‘as quenched’ surface hardness usually ranges from 37-43HRc.
This grade demonstrates reasonably high hardenability, and excellent forgeability and weldability.
For many applications it can be used as an alternative to more costly heavy alloyed case hardening steels.
Typical applications of 8620 grade steel
- Gears
- Pins
- Shafts
- Camshafts
- Drive wheels
- Clutch plates
8620 steel is still often referred to as EN362 steel - its equivalent grade under the previous BS 970: 1955 standard.
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PRODUCTION METHOD
Rolled or Forged
FINISHES
Black Bar or Bright Bar