Patent · US Active

Cold rolled steel wire, method and reinforcement of flexible conduits

US11408049B2 · kind B2 · utility

0Cited by

7References

15Claims

0Family size

Assignee

ARCELORMITTAL WIRE FRANCE · FR

Inventors

Sylvain Foissey · Meximieux, FR
Gaëlle Bascourt · Bourg-en-Bresse, FR

Key dates

Filing date	Oct 8, 2019
Grant date	Aug 9, 2022
Priority date	—
Expiry date	Aug 9, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/25
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A cold rolled steel wire having the following chemical composition expressed in percent by weight, 0.2≤C %≤0.6, 0.5≤Mn %≤1.0, 0.1≤Si≤0.5%, 0.2≤Cr≤1.0%, P≤0.020%, S≤0.015%, N≤0.010%, and optionally not more than 0.07% Al, not more than 0.2% Ni, not more than 0.1% Mo and not more than 0.1% Cu, the balance being iron and the unavoidable impurities due to processing. This wire has a microstructure including bainite and, optionally, up to 35% acicular ferrite and up to 15% pearlite. A fabrication method and flexible conduits for hydrocarbon extraction are also provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.