CN86101666A - High performance hot-work die steel - Google Patents
High performance hot-work die steel Download PDFInfo
- Publication number
- CN86101666A CN86101666A CN 86101666 CN86101666A CN86101666A CN 86101666 A CN86101666 A CN 86101666A CN 86101666 CN86101666 CN 86101666 CN 86101666 A CN86101666 A CN 86101666A CN 86101666 A CN86101666 A CN 86101666A
- Authority
- CN
- China
- Prior art keywords
- steel
- temperature
- work
- hot
- under
- 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
Landscapes
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
Series hot die steel 4Cr of the present invention
2Mo
2WVMn.Be applicable to the heavily loaded hot-work die that temperature is higher, load is bigger.This steel adopts the strengthening phase based on the carbide of vanadium on alloying, low chromium cooperates with molybdenum tungsten, improves hardening capacity with molybdenum manganese.Make it to have higher high temperature strength and toughness, and good anti-temper resistance.Yield strength under 650 ℃ of temperature reaches 80kgf/mm
2In 500～650 ℃ of the test temperatures, hardness HRC is 47.8, and high temperature impact toughness α kx is 6.0～9.5kgfM/cm
2All round properties is better than 3Cr
2WV steel, and the work of can under 〉=650 ℃ of temperature, being satisfied with.
Description
The invention belongs to the alloy die steel field.Mainly be applicable to the hot-work die under the high temperature high-load condition.
Current, the high-alloy hot work die steel of widespread use both at home and abroad mainly contains two kinds: i.e. 4Cr
5MoV
1Si(" die steel and thermal treatment ", Feng Xiao once waited work, and publish in July, 1984) and 3Cr
2W
8V(GB1299-77).The H that the U.S. is arranged corresponding to other foreign grade of steel of these two grades of steel
13, H
21, the X of West Germany
40CrMoV
51, X
30WCrV
93, Japan SKD
61, SKD
5(" Thysson Edelst.Techn.Ber " the 3rd phase in 1979,181～185).4Cr
5The MoVlSi steel has hot strength and good toughness and hardening capacity preferably, has become the general hot-work die steel in various countries, particularly every Western Europe country.But the hot strength of this steel is still lower, and the intensity under 600 ℃ of temperature is 64kgf/mm
2Can only in 500～550 ℃ of temperature ranges, use.3Cr
2W
8The V steel also is the hot-work die steel of widespread use, and its temperature strength is better than 4Cr
5The MoVlSi steel, the hot strength in the time of 600 ℃ reaches 85kgf/mm
2Can use down at 600 ℃.Its shortcoming is to work as use temperature greater than 600 ℃, its hot strength deficiency, and in addition, thermal shock resistance is poor, is needing easily to produce early stage cracking under the condition of water-cooled; The hardening capacity deficiency; The toughness deficiency.Therefore, die life is low, brings for production efficiency and quality product and seriously influences.
The object of the present invention is to provide a kind of high-temperature behavior to be better than 4Cr
5MoVlSi, all round properties is better than 3Cr
2W
8V, and can be at the high performance hot-work die steel of temperature applications more than 600 ℃.
The chemical ingredients of high performance hot-work die steel of the present invention (weight %) is: 0.35～0.44%C, 0.20～0.50%Si, 0.80～1.10%Mn, 2.40～3.00%Cr, 2.00～2.50%Mo, 1.10～1.50%W, 1.10～1.30%V.
On chemical composition design, the present invention has following characteristics: adopted the strengthening phase based on the carbide MC of vanadium, thereby made steel still can keep comparing higher high temperature strength under the toughness condition preferably.3Cr
2W
8The carbide of V steel under working conditions mainly is M
6C and M
7C
3, to compare with MC, they are unstable when tempering or use, assemble easily, grow up, thereby reduced high-temperature behavior, and the MC strengthening phase has then overcome this shortcoming.For guaranteeing good toughness and higher high temperature strength, adopt lower carbon amount, improve hardening capacity with manganese.Chromium also have the large size steel hardening capacity of raising and oxidation resistant effect, but in order to ensure MC type carbide, chromium content should be less than 3% except forming certain carbide with carbon.Molybdenum and tungsten are the elements that forms carbide strongly, the adding of molybdenum improves hardening capacity greatly, the adding of tungsten has improved anti-temper resistance, in addition, keep the molybdenum of some amount, the M6C type carbide that tungsten forms, stabilization to MC is helpful, and Mo, W add-on are so that (be advisable in (W)/2+Mo)=2.55～3.50.In order to guarantee to form the carbide based on the MC type, content of vanadium must be greater than 1.1%.
Production technique of the present invention is simple.Can adopt electric arc furnace, vacuum oven to smelt.Hot-work can be adopted forging, roll.The Forge Heating temperature is 1100～1150 ℃, final forging temperature 〉=850 ℃.Modifier treatment is generally adopted in thermal treatment, and quenching temperature is 1060～1110 ℃, and tempering temperature is 550～650 ℃.
The hot-work die steel that the chemical ingredients scope is produced according to the present invention has excellent hot strength and toughness, and good anti-temper resistance.For relatively, when the present invention tests, with 3Cr
2W
8The V steel place with test conditionss such as identical smelting processing of the present invention and performance test under, carried out simultaneous test, the gained result lists in respectively in following each table.Table 1,2 has been enumerated the hardness value of two grades of steel under different tempering times with same tempering temperature under the different tempering temperatures.Table 3,4 has been enumerated the notch shock toughness of two grades of steel under room temperature and high temperature.Table 5 has been enumerated the high-temperature behavior of two grades of steel.By find out that at aspects such as hot strength, notch shock toughness and anti-temper resistances, the present invention all is better than 3Cr in above-mentioned each table comprehensively
2W
8V
Hardness under the different tempering temperatures of table 1
Steel.The present invention can work under 〉=650 ℃ of temperature condition satisfactorily.
(quenching temperature the present invention is 1060 ℃ to table 2 tempering time, 3Cr to the influence of hardness
2W
8The V steel is 1100 ℃)
Table 3 room temperature notch shock toughness (1060 ℃ of quenching temperature the present invention, 3Cr
2W
8The V steel is 1100 ℃)
Table 4 high temperature notch shock toughness (the present invention and 3Cr
2W
8V's
Quenching temperature is respectively 1060 ℃ and 1100 ℃, divides
Be not tempered to hardness HRC47.8 and 47.0)
Table 5 high-temperature yield strength and relative reduction in area (thermal treatment is with table 4)
Embodiment one
Chemical ingredients scope designed according to this invention has been smelted 4 stove steel on the vacuum high frequency furnace, its concrete chemical ingredients is listed table 6 in, and steel ingot carries out the test of room temperature and high-temperature behavior after forge hot and thermal treatment, and all performances of gained are listed table 7 in.
The chemical ingredients of table 6 embodiment one (weight %)
Embodiment two
Adopt electric arc furnace+30 a ton external refining to smelt stove steel grade of the present invention, its chemical ingredients (weight %) is: 0.38%C, 0.25%Si, 1.00%Mn, 2.57%Cr, 2.0%Mo, 1.11%W, 1.10%V, 0.006%S, 0.020%P.Steel ingot is used separately as the mould of processing red copper, brass, steel alloy, carbon steel after forging, thermal treatment, carry out disposable test in work-ing life, and its result lists table 8 in, for relatively, with 3Cr
2W
8V etc. also list in the table former disposable work-ing life (working conditions is identical) with moulding stock, find out by table, disposable work-ing life of the present invention more former usefulness 3Cr
2W
8The V steel has improved 1.2～3.2 times respectively.
The present invention is as the disposable work-ing life (number of times) of mould among table 8 embodiment two
Claims (1)
- A kind of hot-work die steel is characterized in that chemical ingredients (weight %) is 0.35～0.44%C, 0.20～0.50%Si, and 0.80～1.10%Mn, 2.40～3.00%Cr, 2.00～2.50%Mo, 1.10～1.50%W, 1.10～1.30%V, surplus is Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86101666 CN86101666A (en) | 1986-03-29 | 1986-03-29 | High performance hot-work die steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86101666 CN86101666A (en) | 1986-03-29 | 1986-03-29 | High performance hot-work die steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86101666A true CN86101666A (en) | 1987-10-21 |
Family
ID=4801480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86101666 Pending CN86101666A (en) | 1986-03-29 | 1986-03-29 | High performance hot-work die steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86101666A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419112C (en) * | 2006-08-07 | 2008-09-17 | 易正伦 | High performance hot work mould steel |
| CN102145500A (en) * | 2010-02-08 | 2011-08-10 | 上海威加利机械刀片有限公司 | Special high alloy steel composite wood-working mechanical cutting blade |
| CN103614633A (en) * | 2013-10-22 | 2014-03-05 | 芜湖市鸿坤汽车零部件有限公司 | Alloy steel material having high hot strength and preparation method thereof |
-
1986
- 1986-03-29 CN CN 86101666 patent/CN86101666A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419112C (en) * | 2006-08-07 | 2008-09-17 | 易正伦 | High performance hot work mould steel |
| CN102145500A (en) * | 2010-02-08 | 2011-08-10 | 上海威加利机械刀片有限公司 | Special high alloy steel composite wood-working mechanical cutting blade |
| CN103614633A (en) * | 2013-10-22 | 2014-03-05 | 芜湖市鸿坤汽车零部件有限公司 | Alloy steel material having high hot strength and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101538686B (en) | Martensite precipitation hardening stainless steel for structural member and manufacturing method thereof | |
| CN102912236B (en) | High-performance and abrasion-resistant hot work die steel and technology for manufacturing same | |
| CN109487166A (en) | A kind of high strength at high temperature low-carbon heated die steel and preparation method thereof | |
| CN108220815B (en) | Hot work die steel with high heat resistance and high impact toughness for hot forging and preparation method thereof | |
| CN107974636A (en) | A kind of high rigidity high-hardenability pre-hardening plastic die steel and preparation method thereof | |
| CN85100822A (en) | Hot-work die steel | |
| US20200190614A1 (en) | Nitrogen-containing microalloyed spring steel and preparation method thereof | |
| CN106086668A (en) | A kind of high-performance high speed stamping cold work die steel and preparation method thereof | |
| CN102644026A (en) | Cold roll and manufacturing method thereof | |
| CN111500928B (en) | Low-temperature high-toughness high-temperature high-strength and high-hardenability hot die steel and preparation technology thereof | |
| CN109182669B (en) | High-hardness high-toughness easy-welding pre-hardened plastic die steel and preparation method thereof | |
| CN113718174B (en) | Double-refining high-strength high-toughness long-life medium-high carbon bearing steel and preparation method thereof | |
| WO2019080458A1 (en) | Micro-alloyed spring steel and preparation method thereof | |
| JP7483644B2 (en) | Carburized bearing steel and its manufacturing method | |
| CN111850412A (en) | Steel material for carburized gear and preparation method thereof | |
| CN1876880A (en) | Cold-work die steel for high speed stamping | |
| CN112725688A (en) | Cold and hot dual-purpose steel for thread rolling die and preparation method thereof | |
| CN103290328A (en) | High-niobium, high-wear-resistance and high-toughness cold-work die steel | |
| CN85104791A (en) | Rapid tool steel and thermal treatment process thereof | |
| CN86101666A (en) | High performance hot-work die steel | |
| JP7530127B2 (en) | Mold steel and its manufacturing method | |
| US4049430A (en) | Precipitation hardenable stainless steel | |
| CN1055773A (en) | Low cobalt superhard high speed steel | |
| CN1038467A (en) | High-strength and high ductility non-quenched and non-tempesed steel | |
| CN112080704B (en) | High-toughness high-hardness cold and hot combined type die steel and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |