Claims
- 1. Non-ageing, low-alloy, hot-rolled, strip-formed formable steel having less than 0.1% Si, from 98.514-99.971 wt. % Fe and having a carbon content in the range 0.02 to 0.10 wt. % and a thickness in the range 0.5 to 5.0 mm, wherein the contents of non-oxide bound titanium, nitrogen and sulphur in wt. % satisfy the conditions:
- Ti.gtoreq.2.28N
- Ti.ltoreq.3.43N+1.5S
- and the steel is free from titanium carbide and niobium carbide
- 2. Steel in accordance with claim 1 wherein the contents of non-oxide bound titanium, nitrogen and sulphur satisfy the conditions:
- Ti.gtoreq.3.42N
- Ti.ltoreq.3.43N+1.5S.
- 3. Steel in accordance with claim 1 wherein the content of sulphur is less than 0.05 wt. %.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8800391 |
Feb 1988 |
NLX |
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Parent Case Info
This application is a Continuation-in-Part of application Ser. No. 307,477, filed Feb. 8, 1989, now abandoned.
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Number |
Name |
Date |
Kind |
3765874 |
Elias et al. |
Oct 1973 |
|
4141761 |
Abraham et al. |
Feb 1979 |
|
4586966 |
Okamoto et al. |
May 1986 |
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931662 |
Aug 1955 |
DEX |
2362658 |
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DEX |
1335355 |
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DDX |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
307477 |
Feb 1989 |
|