100Cr6
£248.45
535A99 - 1% Chromium-Molybdenum High Carbon Through 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.
£245.55 per tonne
Surcharge Price History for 535A99
| JUN 18 | SEP 18 | DEC 18 | MAR 19 | TODAY |
|---|---|---|---|---|
| £289.51 | £312.65 | £314.01 | £273.15 | £245.55 |
Description
535A99 grade steel is a high carbon alloy steel commonly supplied in the spherodised annealed condition.
Following machining it is subsequently hardened and lightly tempered to give parts a high surface hardness with a deeper hardened zone than can be obtained with case hardening steels.
It can be oil quenched in sections up to 1” diameter and water hardened in larger sections, then subsequently tempered to produce a very hard wear resistance surface in excess of 65HRc.
Typical applications of 535A99 grade steel
- Ball and roller bearings
- Bearing rings
- Connecting rod
- Big end bushes
- Lathe centres
- Collets
- Cams and pawls
- Small hardened steel cold work rolls
- Blanking and forming tools
- Punches
- Knurling tools
- Gauges
- Fuel nozzles
- Shear blades
- Bullet cores
- Instrument pivots
- Spindles
535A99 steel is still often referred to as EN31 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