JPH0559171B2 - - Google Patents
Info
- Publication number
- JPH0559171B2 JPH0559171B2 JP59159894A JP15989484A JPH0559171B2 JP H0559171 B2 JPH0559171 B2 JP H0559171B2 JP 59159894 A JP59159894 A JP 59159894A JP 15989484 A JP15989484 A JP 15989484A JP H0559171 B2 JPH0559171 B2 JP H0559171B2
- Authority
- JP
- Japan
- Prior art keywords
- less
- steel
- temperature
- strength
- rolling
- 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.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 39
- 239000010959 steel Substances 0.000 claims description 39
- 238000010438 heat treatment Methods 0.000 claims description 20
- 238000005496 tempering Methods 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 229910052804 chromium Inorganic materials 0.000 claims description 12
- 229910052758 niobium Inorganic materials 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 9
- 229910052748 manganese Inorganic materials 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 229910052720 vanadium Inorganic materials 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 238000010791 quenching Methods 0.000 description 9
- 230000000171 quenching effect Effects 0.000 description 9
- 238000005336 cracking Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000005275 alloying Methods 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- -1 (2) In weight% Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Heat Treatment Of Steel (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59159894A JPS6137918A (ja) | 1984-07-30 | 1984-07-30 | 引張強さ７０Ｋｇｆ／ｍｍ２以上の高強度鋼の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59159894A JPS6137918A (ja) | 1984-07-30 | 1984-07-30 | 引張強さ７０Ｋｇｆ／ｍｍ２以上の高強度鋼の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6137918A JPS6137918A (ja) | 1986-02-22 |
| JPH0559171B2 true JPH0559171B2 (zh) | 1993-08-30 |
Family
ID=15703496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59159894A Granted JPS6137918A (ja) | 1984-07-30 | 1984-07-30 | 引張強さ７０Ｋｇｆ／ｍｍ２以上の高強度鋼の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6137918A (zh) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61166918A (ja) * | 1985-01-17 | 1986-07-28 | Nippon Steel Corp | 耐硫化物応力腐食割れ鋼の製造方法 |
| JPS62158817A (ja) * | 1985-12-28 | 1987-07-14 | Nippon Steel Corp | 高強度高靭性の厚鋼板の製造方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS571570A (en) * | 1980-06-04 | 1982-01-06 | Sumitomo Metal Ind Ltd | Conditioning method for metallic ingot |
| JPS5896817A (ja) * | 1981-12-07 | 1983-06-09 | Sumitomo Metal Ind Ltd | 高靭性を有する高張力熱間圧延鋼材の製造法 |
| JPS58210125A (ja) * | 1982-06-01 | 1983-12-07 | Sumitomo Metal Ind Ltd | 直接焼入法による強靭高張力鋼板の製造法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5457418A (en) * | 1977-10-18 | 1979-05-09 | Nippon Kokan Kk <Nkk> | Manufacture of high toughness, refined steel |
-
1984
- 1984-07-30 JP JP59159894A patent/JPS6137918A/ja active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS571570A (en) * | 1980-06-04 | 1982-01-06 | Sumitomo Metal Ind Ltd | Conditioning method for metallic ingot |
| JPS5896817A (ja) * | 1981-12-07 | 1983-06-09 | Sumitomo Metal Ind Ltd | 高靭性を有する高張力熱間圧延鋼材の製造法 |
| JPS58210125A (ja) * | 1982-06-01 | 1983-12-07 | Sumitomo Metal Ind Ltd | 直接焼入法による強靭高張力鋼板の製造法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6137918A (ja) | 1986-02-22 |
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