Metal treatment – Stock – Ferrous
Patent
1996-05-14
1997-05-20
Yee, Deborah
Metal treatment
Stock
Ferrous
473324, C22C 3844, C22C 3852
Patent
active
056308884
ABSTRACT:
A golf club head is formed of an alloy steel which comprises at most 0.2 wt. % of C, 0.05-1.0 wt. % of Si, at most 0.5 wt. % of Mn, 3.0-8.0 wt. % of Ni, 10.0-20.0 wt. % of Cr, 3.0-8.0 wt. % of Mo and 10.0-20.0 wt. % of Co, the remainder being substantially Fe, and has a metallic texture composed principally of martensite.
REFERENCES:
patent: 4314863 (1982-02-01), McCormick
patent: 5089067 (1992-02-01), Schumacher
Yamano Katsumi
Yoshida Daisaku
Kasco Corporation
Shintomi Golf Co., Ltd.
Yee Deborah
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