JPS648258A - Martensitic free-cutting stainless steel for cold forging - Google Patents
Martensitic free-cutting stainless steel for cold forgingInfo
- Publication number
- JPS648258A JPS648258A JP16292987A JP16292987A JPS648258A JP S648258 A JPS648258 A JP S648258A JP 16292987 A JP16292987 A JP 16292987A JP 16292987 A JP16292987 A JP 16292987A JP S648258 A JPS648258 A JP S648258A
- Authority
- JP
- Japan
- Prior art keywords
- stainless steel
- cutting stainless
- free
- cold forging
- 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.)
- Granted
Links
- 229910001220 stainless steel Inorganic materials 0.000 title abstract 3
- 239000010935 stainless steel Substances 0.000 title abstract 3
- 229910000734 martensite Inorganic materials 0.000 title abstract 2
- 238000010273 cold forging Methods 0.000 title 1
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 229910052797 bismuth Inorganic materials 0.000 abstract 2
- 230000007797 corrosion Effects 0.000 abstract 2
- 238000005260 corrosion Methods 0.000 abstract 2
- 229910052745 lead Inorganic materials 0.000 abstract 2
- 229910052711 selenium Inorganic materials 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- 229910052714 tellurium Inorganic materials 0.000 abstract 2
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229910052758 niobium Inorganic materials 0.000 abstract 1
- 229910052720 vanadium Inorganic materials 0.000 abstract 1
Landscapes
- Heat Treatment Of Steel (AREA)
Abstract
PURPOSE:To improve corrosion resistance together with both characteristics of machinability and cold forgeability by lowering the content of C in a free- cutting stainless steel and incorporating Pb, Te, Se, Bi, etc., at specific ratios into said steel. CONSTITUTION:The compsn. of a martensitic free-cutting stainless steel is constituted by incorporating, by weight %, <=0.07% C, <=0.40% Si, 0.10-1.0% Mn, 10.0-13.0% Cr, and <=0.02% N, and >=1 kinds among 0.03-0.30% Pb, 0.01-0.15% Te, 0.01-0.15% Se and 0.01-0.15% Bi into the compsn. and consisting the balance of Fe and impurity elements. In addition, the Cr equiv. is specified to a 9.0-10.5 range. Further, >=1 kinds among <=0.50% Cu, <=1.5% Mo, <=0.2% Ti, <=0.15% V, and <=0.10% Nb are incorporated therein. This steel has the excellent cold forgeability in an annealed state and has the excellent machinability and corrosion resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62162929A JP2521479B2 (en) | 1987-06-30 | 1987-06-30 | Martensite free-cutting stainless steel for cold forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62162929A JP2521479B2 (en) | 1987-06-30 | 1987-06-30 | Martensite free-cutting stainless steel for cold forging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS648258A true JPS648258A (en) | 1989-01-12 |
| JP2521479B2 JP2521479B2 (en) | 1996-08-07 |
Family
ID=15763918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62162929A Expired - Lifetime JP2521479B2 (en) | 1987-06-30 | 1987-06-30 | Martensite free-cutting stainless steel for cold forging |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2521479B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001140034A (en) * | 1999-09-03 | 2001-05-22 | Kiyohito Ishida | Free cutting alloy material |
| JP2003013188A (en) * | 2001-07-02 | 2003-01-15 | Nippon Steel Corp | Bi free cutting steel |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7297214B2 (en) | 1999-09-03 | 2007-11-20 | Kiyohito Ishida | Free cutting alloy |
| US7381369B2 (en) | 1999-09-03 | 2008-06-03 | Kiyohito Ishida | Free cutting alloy |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53103917A (en) * | 1977-02-23 | 1978-09-09 | Daido Steel Co Ltd | Martensitic stainless steel having good resistance to rolling load |
-
1987
- 1987-06-30 JP JP62162929A patent/JP2521479B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53103917A (en) * | 1977-02-23 | 1978-09-09 | Daido Steel Co Ltd | Martensitic stainless steel having good resistance to rolling load |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001140034A (en) * | 1999-09-03 | 2001-05-22 | Kiyohito Ishida | Free cutting alloy material |
| JP2003013188A (en) * | 2001-07-02 | 2003-01-15 | Nippon Steel Corp | Bi free cutting steel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2521479B2 (en) | 1996-08-07 |
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