JPS57188655A - Superhigh tensile steel with superior toughness at low temperature - Google Patents
Superhigh tensile steel with superior toughness at low temperatureInfo
- Publication number
- JPS57188655A JPS57188655A JP7398281A JP7398281A JPS57188655A JP S57188655 A JPS57188655 A JP S57188655A JP 7398281 A JP7398281 A JP 7398281A JP 7398281 A JP7398281 A JP 7398281A JP S57188655 A JPS57188655 A JP S57188655A
- Authority
- JP
- Japan
- Prior art keywords
- superhigh
- tensile steel
- low temperature
- superior toughness
- steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Heat Treatment Of Steel (AREA)
Abstract
PURPOSE: To obtain a superhigh tensile steel having high yield stress, high tensile strength and superior toughness at low temp. and capable of being tempered at high temp. by adding specified amounts of C, Ni, Cr, Mo and V and restricting the contents of Cu, Si, Mn and Al.
CONSTITUTION: This superhigh tensile steel consists of, by weight, 0.07W0.25% C, 9.6W13% Ni, 0.1W2.4% Cr, 0.1W5% Mo, ≤2% Cu, ≤1% Si, ≤2% Mn, 0.03W 0.2% V, ≤1% Al and the balance Fe with inevitable impurities while satisfying 12W16% f value represented by the equation with respect to C, Ni, Cr, Mo and Cu. This steel has ≥110kg.f/mm2 yield stress, ≥120kg.f/mm2 tensile strength and ≥10kg.m2mmV notch absorption energy at -70°C even after tempering at high temp. It is manufactured at a relatively low cost without requiring a special apparatus.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7398281A JPS57188655A (en) | 1981-05-16 | 1981-05-16 | Superhigh tensile steel with superior toughness at low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7398281A JPS57188655A (en) | 1981-05-16 | 1981-05-16 | Superhigh tensile steel with superior toughness at low temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57188655A true JPS57188655A (en) | 1982-11-19 |
Family
ID=13533810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7398281A Pending JPS57188655A (en) | 1981-05-16 | 1981-05-16 | Superhigh tensile steel with superior toughness at low temperature |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57188655A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5447581A (en) * | 1992-10-07 | 1995-09-05 | Nippon Steel Corporation | Process for producing extra high tensile steel in 1080 MPa yield strength class having excellent stress corrosion cracking resistance |
| US5827379A (en) * | 1993-10-27 | 1998-10-27 | Nippon Steel Corporation | Process for producing extra high tensile steel having excellent stress corrosion cracking resistance |
-
1981
- 1981-05-16 JP JP7398281A patent/JPS57188655A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5447581A (en) * | 1992-10-07 | 1995-09-05 | Nippon Steel Corporation | Process for producing extra high tensile steel in 1080 MPa yield strength class having excellent stress corrosion cracking resistance |
| US5827379A (en) * | 1993-10-27 | 1998-10-27 | Nippon Steel Corporation | Process for producing extra high tensile steel having excellent stress corrosion cracking resistance |
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