Iron-based alloy for a golf club head
AssigneeO-TA Precision Industry Co., Ltd.
InventorChih-Yeh Chao
Life of this patent
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Abstract
An iron-based alloy for a golf club head includes: chromium in an amount ranging from 16.3 to 17.2 wt %; nickel in an amount ranging from 5.8 to 6.5 wt %; nitrogen in an amount ranging from 0.10 to 0.20 wt %; carbon in an amount ranging from 0.01 to 0.12 wt %; silicon in an amount ranging from 0.3 to 1.2 wt %; manganese in an amount ranging from 0.3 to 1.2 wt %; and a balance of iron and impurities, based on a total weight of the iron-based alloy. The alloy has a duplex-phase microstructure including a martensite phase and 10 to 30 percent austenite phase, and has a tensile strength greater than 120 Ksi and an elongation greater than 35%.
Claims6
An iron-based alloy for a golf club head, comprising:
- chromium in an amount ranging from 16.3 to 17.2 wt %;
- nickel in an amount ranging from 5.8 to 6.5 wt %;
- nitrogen in an amount ranging from 0.10 to 0.20 wt %;
- carbon in an amount ranging from 0.01 to 0.12 wt %;
- silicon in an amount ranging from 0.3 to 1.2 wt %;
- manganese in an amount ranging from 0.3 to 1.2 wt %;
- and
- a balance of iron and impurities, based on a total weight of said iron-based alloy;
- and wherein:
- said alloy has a duplex-phase microstructure including a martensite phase and 10˜30% austenite phase, and possesses a tensile strength greater than 120 Ksi and an elongation greater than 35%.
An iron-based alloy for a golf club head, comprising:
- chromium in an amount ranging from 16.3 to 17.2 wt %;
- nickel in an amount ranging from 5.8 to 6.5 wt %;
- nitrogen in an amount ranging from 0.10 to 0.20 wt %;
- carbon in an amount ranging from 0.01 to 0.12 wt %;
- silicon in an amount ranging from 0.3 to 1.2 wt %;
- manganese in an amount ranging from 0.3 to 1.2 wt %;
- copper in an amount ranging from 2.8 to 3.2 wt %;
- titanium, niobium, and vanadium in an amount ranging from 0.15 to 0.5 wt %;
- and
- a balance of iron and impurities, based on a total weight of said iron-based alloy;
- and wherein:
- said alloy has a duplex-phase microstructure including a martensite phase and 10˜30% austenite phase, and possesses a tensile strength greater than 120 Ksi and an elongation greater than 35%.
Dependencies are inferred from the claim text.