JPS575848A - Low-alloyed steel having sweet corrosion resistance - Google Patents
Low-alloyed steel having sweet corrosion resistanceInfo
- Publication number
- JPS575848A JPS575848A JP8030380A JP8030380A JPS575848A JP S575848 A JPS575848 A JP S575848A JP 8030380 A JP8030380 A JP 8030380A JP 8030380 A JP8030380 A JP 8030380A JP S575848 A JPS575848 A JP S575848A
- Authority
- JP
- Japan
- Prior art keywords
- corrosion
- low
- alloyed steel
- corrosion resistance
- sweet
- 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
- 230000007797 corrosion Effects 0.000 title abstract 6
- 238000005260 corrosion Methods 0.000 title abstract 6
- 229910000831 Steel Inorganic materials 0.000 title abstract 4
- 239000010959 steel Substances 0.000 title abstract 4
- 235000009508 confectionery Nutrition 0.000 title abstract 3
- 229910052782 aluminium Inorganic materials 0.000 abstract 2
- 229910052802 copper Inorganic materials 0.000 abstract 2
- 230000002401 inhibitory effect Effects 0.000 abstract 2
- 229910052748 manganese Inorganic materials 0.000 abstract 2
- 229910052750 molybdenum Inorganic materials 0.000 abstract 2
- 229910052759 nickel Inorganic materials 0.000 abstract 2
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000003129 oil well Substances 0.000 abstract 1
Landscapes
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
PURPOSE: To offer a low-alloyed steel, useful as an oil well, pipe line or the like, provided with excellent sweet corrosion resistance in a wet CO2 gas atmosphere, by controlling contents of C, Si, Mn and P, lowering P content and adding a specified amount of Cr.
CONSTITUTION: The low-alloyed steel consists of up to 0.2% C, up to 1.0% Si, 0.1W 2.0% Mn, up to 0.01% P, up to 0.03% S, 0.5W5% Cr and the balance being substantially Fe. The steel may contain 1% or less of one or more of Cu, Ni, Mo and Al. In this composition, local corrosion is prevented and an inhibiting effect to sweet corrosion is obtained by the addition of the specified Cr amount. Each element of Cu, Ni, Mo and Al, which is supplementally added at a controlled amount, suppresses pitting corrosion and makes a corroded surface smooth by its conjunct effect with Cr in the coexistence of Cr. The corrosion-inhibiting effect is further enhanced by lowering S content.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8030380A JPS575848A (en) | 1980-06-16 | 1980-06-16 | Low-alloyed steel having sweet corrosion resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8030380A JPS575848A (en) | 1980-06-16 | 1980-06-16 | Low-alloyed steel having sweet corrosion resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS575848A true JPS575848A (en) | 1982-01-12 |
Family
ID=13714500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8030380A Pending JPS575848A (en) | 1980-06-16 | 1980-06-16 | Low-alloyed steel having sweet corrosion resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS575848A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5743958A (en) * | 1980-08-30 | 1982-03-12 | Nippon Steel Corp | Steel material for line pipe with excellent carbon dioxide corrosion resistance |
| JPS6070164A (en) * | 1983-09-26 | 1985-04-20 | Sumitomo Metal Ind Ltd | High strength steel having superior resistance to sulfide stress corrosion cracking |
| WO1986004097A1 (en) * | 1985-01-14 | 1986-07-17 | Nisshin Steel Co., Ltd. | Highly corrosion-resistant steel alloy for use in exhaust gas member |
| JPS61279658A (en) * | 1985-06-05 | 1986-12-10 | Mitsubishi Heavy Ind Ltd | Steel for exhaust gas economizer |
-
1980
- 1980-06-16 JP JP8030380A patent/JPS575848A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5743958A (en) * | 1980-08-30 | 1982-03-12 | Nippon Steel Corp | Steel material for line pipe with excellent carbon dioxide corrosion resistance |
| JPS6070164A (en) * | 1983-09-26 | 1985-04-20 | Sumitomo Metal Ind Ltd | High strength steel having superior resistance to sulfide stress corrosion cracking |
| WO1986004097A1 (en) * | 1985-01-14 | 1986-07-17 | Nisshin Steel Co., Ltd. | Highly corrosion-resistant steel alloy for use in exhaust gas member |
| DE3690011T1 (en) * | 1985-01-14 | 1987-03-12 | ||
| JPS61279658A (en) * | 1985-06-05 | 1986-12-10 | Mitsubishi Heavy Ind Ltd | Steel for exhaust gas economizer |
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