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US 2014/0112821 A1Published application
Lead-free brass alloy for hot working
AssigneeJoetsu Bronz1 Corporation
InventorsHideki Yamamoto, Tagayasu Hoshino, Katsuyuki Nakajima, Makoto Ueno, Tetsuya Matsuhashi
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Abstract
Provided is a lead-free brass alloy for hot working provided with good hot-working properties and mechanical characteristics. A lead-free brass alloy for hot working, comprising: 28.0 to 35.0 wt % zinc, 0.5 to 2.0 wt % silicon, 0.5 to 1.5 wt % tin, 0.5 to 1.5 wt % bismuth, 0.10 wt % or less lead, and the remainder being copper and unavoidable impurities, the zinc equivalent being in a range of 40.0 to 43.0, and the area ratio of the κ phase after hot working being 20% or less.
Claims2
A lead-free brass alloy for hot working, characterized in comprising:
- 28.0 to 35.0 wt % zinc, 0.5 to 2.0 wt % silicon, 0.5 to 1.5 wt % tin, 0.5 to 1.5 wt % bismuth, 0.10 wt % or less lead, and the remainder being copper and unavoidable impurities, the zinc equivalent being in a range of 40.0 to 43.0, and the area ratio of the κ phase after hot working being 20% or less.
Dependencies are inferred from the claim text.