655M13
£506.53
665M17 - 1.7% Nickel-Molybdenum 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.
£399.65 per tonne
Surcharge Price History for 665M17
| JUN 18 | SEP 18 | DEC 18 | MAR 19 | TODAY |
|---|---|---|---|---|
| £457.34 | £473.93 | £450.96 | £436.40 | £399.65 |
Description
665M17 grade steel is a medium alloy nickel-molybdenum case-hardening steel which may be carburised and hardened to produce a hard wear resistant case developing a core strength of 770N/mm.
It has good impact properties, very good resistance to stock and freedom from temper brittleness.
Typical applications of 665M17 grade steel
- Gears
- Shafts
- Pinions
- Tappets
- Valve rockers
- Collets
- Track pins
- Steering balls and worms
- Transmission components
- Breech mechanisms
- Small arms parts
665M17 steel is still often referred to as EN34 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