Invention Application
- Patent Title: Steel alloy for railway wheels
- Patent Title (中): 铁合金铁路车轮
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Application No.: US10080312Application Date: 2002-02-21
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Publication No.: US20020074065A1Publication Date: 2002-06-20
- Inventor: Takashi Fujimura , Taizo Makino
- Applicant: Sumitomo Metal Industries, Inc.
- Applicant Address: JP Tokyo
- Assignee: Sumitomo Metal Industries, Inc.
- Current Assignee: Sumitomo Metal Industries, Inc.
- Current Assignee Address: JP Tokyo
- Main IPC: C22C038/02
- IPC: C22C038/02 ; C22C038/04

Abstract:
Disclosed is a steel alloy that includes as alloying ingredients carbon, silicon, manganese, aluminum, and oxygen. In accordance with this embodiment of the disclosed invention, carbon is present in an amount ranging from 0.40 to 0.77 wt. %; silicon is present in an amount ranging from 0.40 to 1.20 wt. %; manganese is present in an amount ranging from 0.40 to 1.20 wt. %, aluminum is present in an amount ranging from 0.003 to 0.060 wt. %; and oxygen is present in an amount ranging up to 0.0030 wt. %. Also disclosed is a railway wheel that comprises a hub, a rim, and a connecting plate. In accordance with this embodiment of the disclosed invention, at least the rim, and preferably the entire railway wheel, is composed of the disclosed steel composition.
Public/Granted literature
- US06663727B2 Steel alloy railway wheels Public/Granted day:2003-12-16
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