Back to results
US 4,377,422 AGranted
Hadfield's steel containing 2% vanadium
AssigneeQueen's University at Kingston
InventorsWilliam B. Mackay, Reginald W. Smith
Life of this patent
Estimating the term…
Abstract
An abrasion resistant heat treated austenitic manganese steel containing about 1% carbon, 13% manganese and 1.2-2.0% vanadium. The steels are heat treated so as to disperse austenitic grain boundary vanadium carbides uniformly throughout the matrix.
Claims4
A wear resistant austenitic manganese steel alloy consisting essentially of about:
- carbon:
- 1.1 to 1.4%
- manganese:
- 10 to 14%
- silicon:
- 1% max.
- sulphur:
- 0.06% max.
- phosphorus:
- 0.12% max.
- vanadium:
- 1.2 to 2%
- iron:
- balance
- having an austenitic matrix structure with vanadium carbide particles substantially uniformly distributed therein.
12 more elements
A method of heat treating an alloy consisting essentially of:
- carbon:
- 1.1 to 1.4%
- manganese:
- 10 to 14%
- silicon:
- 1% max.
- sulphur:
- 0.06% max.
- phosphorus:
- 0.12% max.
- vanadium:
- 1.2 to 2%
- iron:
- balance
- comprising soaking said alloy at a temperature in the range 1050.degree.-1150.degree. C. for at least 6 hours per inch of section and water quenching.
12 more elements
A method of heat treating an alloy consisting essentially of:
- carbon:
- 1.1 to 1.4%
- manganese:
- 10 to 14%
- silicon:
- 1% max.
- sulphur:
- 0.06% max.
- phosphorus:
- 0.12% max.
- vanadium:
- 1.2 to 2%
- iron:
- balance
- comprising soaking said alloy at a temperature in the range 1100.degree.-1150.degree. C. for at least 20 minutes per inch of section, water quenching, annealing at 950.degree. C. for at least 6 hours per inch of section and water quenching.
12 more elements
Dependencies are inferred from the claim text.