JPS64231A - Production of high tension chain - Google Patents
Production of high tension chainInfo
- Publication number
- JPS64231A JPS64231A JP15449487A JP15449487A JPS64231A JP S64231 A JPS64231 A JP S64231A JP 15449487 A JP15449487 A JP 15449487A JP 15449487 A JP15449487 A JP 15449487A JP S64231 A JPS64231 A JP S64231A
- Authority
- JP
- Japan
- Prior art keywords
- chain
- produced
- rod steel
- mooring
- low cost
- 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.)
- Granted
Links
Landscapes
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE: To produce a high strength large-sized chain for mooring of a marine structure at low cost by executing a heat treatment such as quenching, tempering, etc., to a chain produced by a rod steel having specific C content and Ms point under specific conditions.
CONSTITUTION: The large-sized chain for mooring of a marine structure is produced by using the rod steel which has the compsn. consisting of, by weight, 0.15W35% C, 0.15W0.50% Si, 1.00W2.00% Mn, 0.50W1.20% Cr, 0.10W0.60% Mo, 0.010W0.060% acid soluble Al and the balance, in which the Ms point (martensite starting temp.) expressed by the equation 1 is regulated to ≥350°C and satisfies the relationship of Di≥1.524D+0.8D between the ideal critical diameter (in) Di and the diameter of the material rod steel (in) D. Said chain is quenched into boiling water of ≥90°C and is thereafter applied to the usual tempering treatment. By this method, the large-sized chain having high strength is produced at low cost.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15449487A JPS64231A (en) | 1987-06-23 | 1987-06-23 | Production of high tension chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15449487A JPS64231A (en) | 1987-06-23 | 1987-06-23 | Production of high tension chain |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPH01231A JPH01231A (en) | 1989-01-05 |
| JPS64231A true JPS64231A (en) | 1989-01-05 |
| JPH0465884B2 JPH0465884B2 (en) | 1992-10-21 |
Family
ID=15585472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15449487A Granted JPS64231A (en) | 1987-06-23 | 1987-06-23 | Production of high tension chain |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS64231A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104962832A (en) * | 2015-05-07 | 2015-10-07 | 马钢(集团)控股有限公司 | Niobium-containing R4 mooring cable steel and heat treatment technology and production method thereof |
| JP2019127636A (en) * | 2018-01-26 | 2019-08-01 | 日本製鉄株式会社 | Mooring chain steel and mooring chain |
-
1987
- 1987-06-23 JP JP15449487A patent/JPS64231A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104962832A (en) * | 2015-05-07 | 2015-10-07 | 马钢(集团)控股有限公司 | Niobium-containing R4 mooring cable steel and heat treatment technology and production method thereof |
| JP2019127636A (en) * | 2018-01-26 | 2019-08-01 | 日本製鉄株式会社 | Mooring chain steel and mooring chain |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0465884B2 (en) | 1992-10-21 |
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