Back to results
US 8,647,450 B2Granted
Lightweight and excellent ductile bead wire, method for producing the same and lightweight tire
AssigneeBridgestone Corporation
InventorsMasami Kikuchi, Yukio Aoike, Takashi Yokoi
Life of this patent
Estimating the term…
Abstract
A bead wire has a composition of Mn: 5-35 at % and Al: 5-20 at % and the remainder being Fe and inevitable impurities, in which a steel structure is an austenite single-phase structure, and achieves weight reduction and high ductility without reducing strength.
Claims5
A lightweight and excellent ductile bead wire for a bead core in a tire having a composition of
- Mn:
- 5-35 at % and
- Al:
- 14-20 at %,
- and the remainder being Fe and inevitable impurities, in which a steel structure is an austenite single-phase structure.
2 more elements
A lightweight and excellent ductile bead wire for a bead core in a tire having a composition of
- C:
- 0.1-1.5 at %,
- Mn:
- 5-35 at % and
- Al:
- 14-20 at %,
- and the remainder being Fe and an inevitable impurities, in which a steel structure is an austenite single-phase structure and fine carbides are included in the austenite single-phase structure.
4 more elements
Dependencies are inferred from the claim text.