JPS56158847A - Heat resistant chromium steel - Google Patents
Heat resistant chromium steelInfo
- Publication number
- JPS56158847A JPS56158847A JP6058480A JP6058480A JPS56158847A JP S56158847 A JPS56158847 A JP S56158847A JP 6058480 A JP6058480 A JP 6058480A JP 6058480 A JP6058480 A JP 6058480A JP S56158847 A JPS56158847 A JP S56158847A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- heat resistant
- strength
- toughness
- temp
- 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
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
PURPOSE: To obtain a heat resistant chromium steel having a totally tempered martensite structure with high strength at high temp. and high toughness at room temp. by further adding N to 11Cr1MoCuWNiVNb steel obtd. by adding Cu, W and Ni to 11Cr1MoVNb steel.
CONSTITUTION: This heat resistant steel for the shaft of a large-sized steam turbine rotor consists of, by wt., 0.1W2.5% C, 9.5W12.5% Cr, 0.5W2% Mo, 0.3W1.5% Ni, 0.4W1.5% Cu, 0.1W0.3% V, 0.05W0.5% W, 0.03W0.2% Nb, ≤0.7% Si, ≤1.5% Mn, 0.03W0.1% N and the balance Fe, and it is heat-treated without forming δ-ferrite. Even if one of Cu, W, Ni and N is removed, they can not produce a sufficient effect, and by the action of Cu, a toughness reduction due to N is prevented. W, Cu and N increase the toughness, yet above the upper limit of Ni lowers the strength at high temp. N is required to increase the strength at high temp., yet above the upper limit of N deteriorates the quality of the ingot.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6058480A JPS56158847A (en) | 1980-05-09 | 1980-05-09 | Heat resistant chromium steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6058480A JPS56158847A (en) | 1980-05-09 | 1980-05-09 | Heat resistant chromium steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56158847A true JPS56158847A (en) | 1981-12-07 |
| JPS6212304B2 JPS6212304B2 (en) | 1987-03-18 |
Family
ID=13146429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6058480A Granted JPS56158847A (en) | 1980-05-09 | 1980-05-09 | Heat resistant chromium steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56158847A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0411726A (en) * | 1990-04-28 | 1992-01-16 | Mitsubishi Electric Corp | High-frequency discharge utilizing device and manufacture of semiconductor by using same device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63275326A (en) * | 1987-05-08 | 1988-11-14 | Hamamatsu Photonics Kk | Diagnostic apparatus |
| JP3747585B2 (en) * | 1997-08-25 | 2006-02-22 | 大同特殊鋼株式会社 | High hardness martensitic stainless steel with excellent workability and corrosion resistance |
-
1980
- 1980-05-09 JP JP6058480A patent/JPS56158847A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0411726A (en) * | 1990-04-28 | 1992-01-16 | Mitsubishi Electric Corp | High-frequency discharge utilizing device and manufacture of semiconductor by using same device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6212304B2 (en) | 1987-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5558353A (en) | Stainless cast steel for hydraulic turbine runner | |
| JPS5732353A (en) | Spring steel with superior wear resistance | |
| JPS5496418A (en) | Heat resistant cast steel | |
| JPS5524932A (en) | Manufacture of bainite tough hardening steel | |
| JPS56158847A (en) | Heat resistant chromium steel | |
| JPS5713152A (en) | Steel for seamless steel pipe with superior corrosion resistance | |
| JPS57123920A (en) | Production of structural steel | |
| JPS57120616A (en) | Production of parts for mechanical structure | |
| JPS5541929A (en) | Steel for high efficiency welding and low temperature use | |
| JPS5798660A (en) | Apparatus using water and its manufacture | |
| JPS57104625A (en) | Manufacture of fine-grain case-hardening steel | |
| JPS5763668A (en) | Free cutting austenite stainless steel | |
| JPS56102559A (en) | Integrated high and low pressure rotor for steam turbine and its manufacture | |
| JPS5635754A (en) | Low temperature turbine blade steel and its heat treatment | |
| JPS55158254A (en) | Nb stabilized ferritic stainless steel with superior local corrosion resistance | |
| JPS5613466A (en) | Heat resistant steel | |
| JPS5589426A (en) | Preparation of high tensile steel with excellent delayed destruction resistance | |
| JPS5792162A (en) | Thick cast steel for low temperature use | |
| JPS5558352A (en) | Mixed pressure type turbine rotor | |
| JPS5798658A (en) | Runner of water turbine with superior cavitation erosion resistance | |
| JPS5662949A (en) | Steel products for steam turbine moving blade or the like | |
| JPS5635756A (en) | Precipitation hardening type hot working tool steel | |
| JPS5579856A (en) | High toughness, wear resistant steel | |
| JPS57116746A (en) | Heat resistant cast steel | |
| JPS572868A (en) | High-manganese nonmagnetic steel for low temperature use |