Soft, low carbon steel alloy with increased deformability for structural reinforcement parts of motor vehicles
US6136266A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 6, 1999 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Oct 6, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A steel alloy for pipes, sheet metal or sections for manufacturing body reinforcements for motor vehicles, particularly side impact beams or A- and B-column reinforcements, wherein the steel alloy contains in percent by weight 0.1 to 0.17% carbon, 2.0 to 2.8% manganese, 0.4 to 0.8% chromium, 0.1 to 0.35% molybdenum, 0.03 to 0.07% aluminum, 0.002 to 0.003% boron, 0.0001 to 0.005% titanium, 0.08 to 0.012% vanadium, 0.025 to 0.06% niobium, 0.0001 to 0.10 zirconium, 0.01 to 0.05% nitrogen, up to 0.3% silicon, up to 0.025% phosphorus and % 0.010 sulfur, wherein the remainder is iron including impurities caused by smelting, and wherein the sum of the alloy components titanium, vanadium and niobium is between 0.16 and 0.25%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.