Golf club head
OwnerArcher C.C. Cheninventor
Life of this patent
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Abstract
A golf club head, which a steel alloy. The steel alloy contains maximum amounts of 0.03% of C by weight, 0.2˜0.6% of Si by weight, maximum amounts of 0.15% of Mn by weight, maximum amounts of 0.03% of P by weight, maximum amounts of 0.03% of S by weight, 10.5˜13.5% of Cr by weight, 0.8-1.4% of Mo by weight, 0.8-1.4% of Al by weight, 0.8˜1.4% of Ni by weight, 0.02˜0.1% of Nb by weight, maximum amounts of 0.01% of N by weight, maximum amounts of 0.03% of Cu by weight, and the rest being Fe. The steel alloy being made by a metallurgical method involving vacuum melting process and normalizing process, whereby the main crystal structure of the steel alloy is Fe.
Claims13
A golf club head, which has at least one potion made of a steel alloy, the constituents of said steel alloy comprises maximum amounts of 0.03% of C by weight, 0.2˜0.6% of Si by weight, maximum amounts of 0.15% of Mn by weight, maximum amounts of 0.03% of P by weight, maximum amounts of 0.03% of S by weight, 10.5˜13.5% of Cr by weight, 0.8-1.4% of Mo by weight, 0.8-1.4% of Al by weight, 0.8˜1.4% of Ni by weight, 0.02˜0.1% of Nb by weight, maximum amounts of 0.01% of N by weight, maximum amounts of 0.03% of Cu by weight, and the rest being Fe;
- said steel alloy being made by a metallurgical method involving vacuum melting process, and normalizing process at a predetermined temperature and a predetermined time, whereby the main crystal structure of said steel alloy is ferrite.
Dependencies are inferred from the claim text.