Abrasion resistant, heat hardenable, stainless steel

Details Abrasion resistant, heat hardenable, stainless steel Abrasion resistant, heat hardenable, stainless steel

1976-08-04

1977-08-23

Steiner, Arthur J.

Metal treatment

Compositions

Heat treating

75126A, 75126D, 75126Q, 75128C, 75128D, 75128T, C22C 3828, C22C 3834

Patent

active

040438430

ABSTRACT:
A method of increasing the abrasion resistance of a heat hardenable chromium-bearing stainless steel, comprising adding at least one of silicon and titanium to a stainless steel melt containing from 0.75% to 10% carbon, 11.5% to 18% chromium, and balance essentially iron, silicon being from about 0.3% to about 4.5%, titanium being from about 0.75% to about 10%. The additions are proportioned such that silicon exceeds 1.5% when titanium exceeds about 1.5% at about 0.75% to about 1.5% carbon, and silicon exceeds 1.5% when titanium exceeds about 4% at carbon greater than 1.75%. A heat hardened steel article or fabricated product having excellent abrasion resistance consists essentially of about 1.8% to about 10% carbon, up to about 1.0% manganese, about 0.45% to about 4.5% silicon, about 11.5% to about 18% chromium, up to about 1% nickel, 1% to about 10% titanium, up to about 1.5% molybdenum, and balance essentially iron, with silicon exceeding 1.5% when titanium exceeds about 4%.

REFERENCES:
patent: 3692515 (1972-09-01), Fletcher

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