High Strength, High Impact Toughness Steel Alloy, an Article of Manufacture Made Therefrom, and a Method of Making the Same
AssigneeCRS Holdings, Inc.
InventorsColleen Tomasello, Jennifer Schaefer, Humberto Raposo, Katelyn Adkison
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Abstract
A steel alloy is disclosed. The alloy contains in weight percent: C about 0.21-about 0.27 Mn about 0.1 max. Si about 0.1 max. P about 0.005 max. S about 0.002 max. Cr about 1.2-about 1.8 Mo about 1.1-about 1.9 V about 0.2-about 0.4 Ni about 3.0-about 3.8 Nb about 0.005-about 0.03 Cu about 0.10 max. Al about 0.02 max. The balance of the alloy is iron, impurities, and incidental amounts of residual elements that do not adversely affect the basic and novel properties provided by the alloy. An article of manufacture and method of making same are also disclosed.
Claims12
A steel alloy consisting essentially of, in weight percent:
- C
- about 0.21-about 0.27
- Mn
- about 0.1 max.
- Si
- about 0.1 max.
- P
- about 0.005 max.
- S
- about 0.002 max.
- Cr
- about 1.2-about 1.8
- Mo
- 1.1-about 1.9
- V
- 0.2-about 0.4
- Ni
- about 3.0-about 3.8
- Nb
- about 0.005-about 0.03
- Cu
- about 0.10 max.
- Al
- about 0.02 max.
- the balance being iron, impurities, and incidental amounts of residual elements that do not adversely affect the basic and novel properties provided by the alloy.
A steel alloy consisting essentially of, in weight percent:
- C
- about 0.22-about 0.25
- Mn
- about 0.1 max.
- Si
- about 0.1 max.
- P
- about 0.005 max.
- S
- about 0.001 max.
- Cr
- about 1.3-about 1.7
- Mo
- 1.3-about 1.8
- V
- 0.2-about 0.4
- Ni
- about 3.2-about 3.7
- Nb
- about 0.01-about 0.03
- Cu
- about 0.10 max.
- Al
- about 0.02 max.
- the balance being iron, impurities, and incidental amounts of residual elements that do not adversely affect the basic and novel properties provided by the alloy.
Dependencies are inferred from the claim text.