CN107447156A - Hot die steel and its production method - Google Patents
Hot die steel and its production method Download PDFInfo
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- CN107447156A CN107447156A CN201710647998.8A CN201710647998A CN107447156A CN 107447156 A CN107447156 A CN 107447156A CN 201710647998 A CN201710647998 A CN 201710647998A CN 107447156 A CN107447156 A CN 107447156A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 52
- 239000010959 steel Substances 0.000 title claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 238000005242 forging Methods 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 230000001590 oxidative effect Effects 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 17
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 12
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 12
- 229910001634 calcium fluoride Inorganic materials 0.000 claims description 12
- 239000004088 foaming agent Substances 0.000 claims description 12
- 238000010792 warming Methods 0.000 claims description 12
- 238000002791 soaking Methods 0.000 claims description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 229910052593 corundum Inorganic materials 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 6
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 238000000137 annealing Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004512 die casting Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000007723 die pressing method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/18—Electroslag remelting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Forging (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention discloses a kind of hot die steel and its production method, the production method comprises the following steps：Molten steel is smelted into electrode bar by electric furnace oxidizing process, then under an ar atmosphere electroslag remelting into ESR ingot；12kg Dephosphorising agent is added in molten steel per ton；ESR ingot is heated to 1230~1280 DEG C, ESR ingot is upset pulled out again to 1/2 height after ingot body melt down and melted down in 1250~1290 DEG C of 40~50h of heating of temperature, then upset pulling in 1180~1200 DEG C of heating of temperature；The condition Single arm forging that according to deflection be 30~35%, heating-up temperature is 1160~1170 DEG C；Both ends are earnestly smooth after forging, and misting cooling enters stove to 300~350 DEG C and carries out normalizing and spheroidizing, obtains described hot die steel.The grain size of hot die steel is very fine and close, reaches more than 9 grades；When 7*10mm samples hardness reaches 46HRC, ballistic work >=220J.
Description
Technical field
The present invention relates to a kind of hot die steel and its production method.
Background technology
1.2344 belong to a kind of pressure-resistant hot die steel, and for the steel through electroslag remelting, uniform in material, quenching degree is good, has
Good machining property and polishing performance, high tenacity and plasticity, good high and low temperature wearability and high temperature resistance fatigue
And heat resistance.
1.2344 materials are commonly used on compression mod, extrusion die or hot pressing die.Routine chemical componentses (%) C：0.38-
0.42, Si：0.8-1.2, Mn：0.30-0.50, P≤0.030, S≤0.010, Cr：4.80-5.50 Mo：1.20-1.50 V：
0.90-1.10。
Current domestic conventional production process is that intermediate frequency furnace (Electrode for remelting rod)+electroslag remelting (general EAR)+forging is (electro-hydraulic
Hammer)+spheroidizing.H, O, N gas and P control of such a production technology to mother metal is excessively poor, and H content is typically in 3- in steel
4PPM, O content typically typically can only be typically controlled in 0.020- in 20-30PPM, N content in more than 150PPM, P content
Between 0.030%；Its finished-product material is detected, according in NADCA (North America die casting association) 1.2344 corresponding gradings, its nodularization group
Knit and can only achieve AS7-AS9 (accounting for 60%), remaining 40% does not meet the requirement of qualified spherodized structure, substantially AS10-AS16 it
Between, grain size is only in 6-7 levels or so, 7*10mm.Heat treatment sample hardness reaches the impact of 46HRC later stages non-notch and is only capable of reaching
120-150J。
1.2344 existing production technologies produce material and are primarily present following shortcoming：
1st, gas content is high, causes inclusion content under its high-power microscope higher, typically exists according to GB/T10561 gradings
Thick 1, the A of A are thin by 1；Thick 1.5, the B of B are thin by 1.5；Thick 0.5, the C of C are thin by 0.5；Thick 0.5, the D of D are thin by 1；Ds0.5.
2nd, spherodized structure is uneven, and carbide particle is larger, skewness, left typically in AS9 according to NADAC judge pictures
It is right.
3rd, grain size is larger, typically at 6 grades or so.
4th, P content height has a great influence to ballistic work.
5th, ballistic work is low, and after 7*10mm sample hardness reaches 46HRC, its ballistic work is only capable of as 120-150j.
The content of the invention
The invention aims to solve problem of the prior art, there is provided a kind of hot die steel and its production method.
In order to reach above-mentioned technique effect, the present invention takes following technical scheme：
A kind of production method of hot die steel, comprises the following steps：
Step A：Molten steel is smelted into electrode bar by electric furnace oxidizing process, then under an ar atmosphere electroslag remelting into ESR ingot；
12kg Dephosphorising agent is added in molten steel per ton, described Dephosphorising agent is made up of the component of following mass parts：CaO, 60~65 parts,
CaF2, 14~17 parts；FeO, 8~11 parts；Foaming agent, 12~16 parts；
Step B：ESR ingot is heated to 1230~1280 DEG C, ESR ingot is upset pulled out again to 1/2 height after ingot body melt down
In 1250~1290 DEG C of temperature, 40~50h of heating, then upset pulling is melted down in 1180~1200 DEG C of heating of temperature, after the completion of heating
It is transferred in Single arm forging molding stove；
Step C：The condition Single arm forging that according to deflection be 30~35%, heating-up temperature is 1160~1170 DEG C；Forging
It is earnestly smooth to make rear both ends, misting cooling enters stove to 300~350 DEG C and carries out normalizing and spheroidizing, obtains described Forming Die
Has steel.
Further technical scheme is that described Dephosphorising agent is made up of the component of following mass parts：CaO, 61.5 parts,
CaF2, 15.3 parts；FeO, 9.2 parts；Foaming agent, 14 parts.
Further technical scheme is that described foaming agent is made up of the component of following mass percents：Na2CO3：13~
18%；Al2O3：30~38%；CaF2：22~26%；Remaining CaO.
Further technical scheme is that described foaming agent is made up of the component of following mass percents：Na2CO3：15%；
Al2O3：35.8%；CaF2：24%；Remaining CaO.
Further technical scheme is that element mass percent is as follows in described molten steel：C：0.38~0.42；Si：0.8
~1.2；Mn：0.30~0.50；P≤0.015；S≤0.010；Cr：4.90~5.50；Mo：1.30~1.50；V：0.90~
1.10。
Further technical scheme is, the heat time described in step B be according to ingot body diameter per mm heating 0.3~
0.4min。
Further technical scheme is that the Forge Heating time described in step C is less than 1h.
Further technical scheme is, after the process of described annealing normalizing enters stove for 300~350 DEG C of forging material after forging
400~410 DEG C are warming up to less than 60 DEG C/h with heating rate, and is incubated 2~4h at this temperature；Then it is less than with heating rate
80 DEG C/h is warming up to 600~620 DEG C, and is incubated 2~4h at this temperature；Then it is warming up to heating rate less than 120 DEG C/h
1025~1035 DEG C, soaking time at this temperature is 1.5~2.0 times of forging material thickness, and the unit of soaking time is min；
It is cooled to room temperature.
Further technical scheme is that the process of described spheroidizing is less than 80 for the forging material after normalizing with heating rate
DEG C/h is warming up to 850~870 DEG C, soaking time at this temperature is 2.5~3.5 times of the forging material thickness after normalizing, insulation
The unit of time is min；Then 400~420 DEG C are furnace-cooled to less than 20 DEG C/h with rate of temperature fall；Then it is air-cooled to room temperature.
Present invention also offers hot die steel, its composition point obtained by the production of the production method of described hot die steel
Analysis is as follows：C：0.38-0.42, Si：0.8-1.2, Mn：0.30-0.50, P≤0.015, S≤0.010, Cr：4.90-5.50 Mo：
1.30-1.50 V：0.90-1.10；Spherodized structure grading reaches AS1-AS5；Grain size reaches more than 9 grades；7*10mm samples are hard
When degree reaches 46HRC, ballistic work >=220J.
The present invention will be further explained below.
Molten steel is smelted using electroslag remelting process under electric furnace oxidizing process Electrode for remelting rod and Ar gas shielded atmosphere to be formed, and is reduced
H, O, P content in steel, reduce inclusion content in molten steel.
Dephosphorising agent is added in molten steel, Dephosphorising agent is made up of the component of following mass parts：CaO, 60~65 parts, CaF2, 14
~17 parts；FeO, 8~11 parts；Foaming agent, 12~16 parts.Described foaming agent is made up of the component of following mass percents：
Na2CO3：13~18%；Al2O3：30~38%；CaF2：22~26%；Remaining CaO.Dephosphorising agent can take off 40~60% P, will
P content reduces as far as possible, it is possible to increase the ballistic work of material, can greatly improve its service life in actual applications.
ESR ingot is heated to 1230~1280 DEG C, ESR ingot is upset pulled out again to 1/2 height after ingot body melt down in temperature
1250~1290 DEG C of 40~50h of heating, then upset pulling are melted down and added in 1180~1200 DEG C of heating of temperature, this process to homogenize
Heat, its mainly solve even tissue, refined carbides by its Dispersed precipitate in the base.
Temperature is down to 700 DEG C or so, it is necessary to quickly heat up to after being transferred to Single arm forging molding stove after the completion of step B heating
For 1160-1170 DEG C of temperature in Single arm forging molding, deflection is 30~35%, forges one-shot forming, adding in Single arm
The hot time is less than 1 hour, and this step is to make crystal grain more tiny and uniform.
Normalizing and spheroidizing can further reduce the precipitation of carbide, and microscopic structure is more preferable.
The component analyzing method of hot die steel is with reference to GB/T222, GB/T223, GB/720066.
The grain size detection method of hot die steel is with reference to GB/T6394-2002.
The spherodized structure detection method of hot die steel is with reference to North America die casting association NADAC 207-90《Compression casting
The acceptance criteria of the advanced H13 steel of mould》AS1-AS9 is qualified.
The pull force calculation method of hot die steel is with reference to GB/T228.1-2010.
The impact experiment detection method of hot die steel is with reference to GB/T229-2007.
The Rockwell hardness detection method of hot die steel is with reference to GB/T230.1-2009.
The Brinell hardness detection method of hot die steel is with reference to GB/T231.2009.
The present invention compared with prior art, has following beneficial effect：
1st, Molten Steel Cleanliness is improved, it is thin by 0.5 that high power field trash reaches thick 0.5, the A of following A；Thick 0.5, the B of B are thin by 0.5；C thick 0, C
It is thin by 0；Thick 0, the D of D are thin by 0.5；Ds0.
2nd, spherodized structure grading is reached in the range of AS1-AS5 according to North America die casting association (NADAC), even tissue.
3rd, grain size is very fine and close, reaches more than 9 grades.
4th, P content≤0.010%, S≤0.002%
5th, when 7*10mm samples hardness reaches 46HRC, ballistic work >=220J.
Embodiment
With reference to embodiments of the invention, the invention will be further elaborated.
Embodiment 1：
Molten steel is smelted into ∮ 540mm electrode bars 4 by electric furnace oxidizing process, 5.4 tons of individual cigarette weight, then under an ar atmosphere
Electroslag remelting is into ∮ 700mm ESR ingots 4,5.3 tons of individual cigarette weight；12kg Dephosphorising agent, described dephosphorization are added in molten steel per ton
Agent is made up of the component of following mass parts：CaO, 61.5 parts, CaF2, 15.3 parts；FeO, 9.2 parts；Foaming agent, 14 parts.Foaming agent
It is made up of the component of following mass percents：Na2CO3：15%；Al2O3：358%；CaF2：24%；Remaining CaO.
The sampling composition of ESR ingot is C：0.41, Si：0.11, Mn：0.49, P：0.009, S：0.002, Cr:5.13 Mo：
1.41 V：0.99.
ESR ingot is heated to 1250 DEG C, and upset pulled out again to ∮ 580mm ingot body to 1/2 height of ESR ingot is melted down in temperature
1260 DEG C of 40~50h of heating, then upset pulling are melted down in 1190 DEG C of heating of temperature, and Single arm forging molding is transferred to after the completion of heating
In stove；
The condition Single arm forging that according to deflection be 30~35%, heating-up temperature is 1160~1170 DEG C；Two after forging
End is earnestly smooth, and misting cooling enters stove to 300~350 DEG C and carries out normalizing and spheroidizing, obtains described hot die steel.
The process of annealing normalizing is warming up to 400 DEG C with heating rate after entering stove for 300~350 DEG C of material of forging less than 60 DEG C/h,
And 2~4h is incubated at this temperature；Then 600 DEG C are warming up to less than 80 DEG C/h with heating rate, and at this temperature insulation 2~
4h；Then 1030 DEG C are warming up to less than 120 DEG C/h with heating rate, soaking time at this temperature is the 1.5 of forging material thickness
~2.0 times, the unit of soaking time is min；It is cooled to room temperature.
The process of spheroidizing is that the forging material after normalizing is warming up to 860 DEG C with heating rate less than 80 DEG C/h, in this temperature
Under soaking time be forging 2.5~3.5 times of material thickness after normalizing, the unit of soaking time is min；Then with rate of temperature fall
400 DEG C are furnace-cooled to less than 20 DEG C/h；Then it is air-cooled to room temperature.
The testing result of hot die steel is as follows：
1st, gas content：H：1.5PPM, O：13PPM, N：45PPM.
2nd, high power field trash：Thick 0, the A of A are thin by 0.5；Thick 0.5, the B of B are thin by 0.5；Thick 0, the C of C are thin by 0；Thick 0, the D of D are thin by 0.5；Ds 0.
3rd, spherodized structure, AS5 is rated by NADAC
4th, grain size：9.5 level
5th, performance：Two groups of non-notch ballistic works of 45HRC, 7mm*10mm sample, first group of 235J, 240J, 238J；Second group
227J,234J,250J。
6th, user makes compression mod average life span in 5-6 ten thousand times or so.
Although reference be made herein to invention has been described for explanatory embodiment of the invention, and above-described embodiment is only this hair
Bright preferable embodiment, embodiments of the present invention are simultaneously not restricted to the described embodiments, it should be appreciated that people in the art
Member can be designed that a lot of other modifications and embodiment, and these modifications and embodiment will fall in principle disclosed in the present application
Within scope and spirit.
Claims (10)
1. a kind of production method of hot die steel, it is characterised in that comprise the following steps：
Step A：Molten steel is smelted into electrode bar by electric furnace oxidizing process, then under an ar atmosphere electroslag remelting into ESR ingot；It is per ton
12kg Dephosphorising agent is added in molten steel, described Dephosphorising agent is made up of the component of following mass parts：CaO, 60~65 parts, CaF2,
14~17 parts；FeO, 8~11 parts；Foaming agent, 12~16 parts；
Step B：ESR ingot is heated to 1230~1280 DEG C, ESR ingot is upset pulled out again to 1/2 height after ingot body melt down in temperature
1250~1290 DEG C of 40~50h of heating of degree, then upset pulling are melted down in 1180~1200 DEG C of heating of temperature, are transferred to after the completion of heating
In Single arm forging molding stove；
Step C：The condition Single arm forging that according to deflection be 30~35%, heating-up temperature is 1160~1170 DEG C；After forging
Both ends are earnestly smooth, and misting cooling enters stove to 300~350 DEG C and carries out normalizing and spheroidizing, obtains described hot die steel.
2. the production method of hot die steel according to claim 1, it is characterised in that described Dephosphorising agent is by following matter
Measure the component composition of part：CaO, 61.5 parts, CaF2, 15.3 parts；FeO, 9.2 parts；Foaming agent, 14 parts.
3. the production method of hot die steel according to claim 1, it is characterised in that described foaming agent is by following matter
Measure the component composition of percentage：Na2CO3：13~18%；Al2O3：30~38%；CaF2：22~26%；Remaining CaO.
4. the production method of hot die steel according to claim 1, it is characterised in that described foaming agent is by following matter
Measure the component composition of percentage：Na2CO3：15%；Al2O3：35.8%；CaF2：24%；Remaining CaO.
5. the production method of hot die steel according to claim 1, it is characterised in that element quality in described molten steel
Percentage is as follows：C：0.38~0.42；Si：0.8~1.2；Mn：0.30~0.50；P≤0.015；S≤0.010；Cr：4.90~
5.50；Mo：1.30~1.50；V：0.90~1.10.
6. the production method of hot die steel according to claim 1, it is characterised in that the heat time described in step B
To heat 0.3~0.4min per mm according to ingot body diameter.
7. the production method of hot die steel according to claim 1, it is characterised in that the Forge Heating described in step C
Time is less than 1h.
8. the production method of hot die steel according to claim 1, it is characterised in that the process of described annealing normalizing
400~410 DEG C are warming up to less than 60 DEG C/h with heating rate after entering stove for 300~350 DEG C of forging material after forging, and in this temperature
2~4h of lower insulation；Then 600~620 DEG C are warming up to less than 80 DEG C/h with heating rate, and are incubated 2~4h at this temperature；So
1025~1035 DEG C are warming up to less than 120 DEG C/h with heating rate afterwards, soaking time at this temperature is the 1.5 of forging material thickness
~2.0 times, the unit of soaking time is min；It is cooled to room temperature.
9. the production method of hot die steel according to claim 1, it is characterised in that the process of described spheroidizing
850~870 DEG C are warming up to less than 80 DEG C/h with heating rate for the forging material after normalizing, soaking time at this temperature is normalizing
2.5~3.5 times of forging material thickness afterwards, the unit of soaking time is min；Then it is furnace-cooled to rate of temperature fall less than 20 DEG C/h
400~420 DEG C；Then it is air-cooled to room temperature.
10. hot-work die obtained by a kind of production method production of hot die steel according to claim any one of 1-9
Steel, it is characterised in that the constituent analysis of described hot die steel is as follows：C：0.38-0.42, Si：0.8-1.2, Mn：0.30-
0.50, P≤0.015, S≤0.010, Cr：4.90-5.50 Mo：1.30-1.50 V：0.90-1.10；Spherodized structure grading reaches
AS1-AS5；Grain size reaches more than 9 grades；When 7*10mm samples hardness reaches 46HRC, ballistic work >=220J.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107974637A (en) * | 2017-12-19 | 2018-05-01 | 攀钢集团江油长城特殊钢有限公司 | A kind of hot die steel and preparation method thereof |
| CN109023153A (en) * | 2018-09-07 | 2018-12-18 | 吉林大学 | Micro nano-TiC particle Strengthening and Toughening forging hot die steel in a kind of original position and preparation method thereof |
| CN110218955A (en) * | 2019-04-18 | 2019-09-10 | 江油市长祥特殊钢制造有限公司 | The preparation method that SA182F92 prevents delta ferrite from generating |
| CN110484830A (en) * | 2019-09-05 | 2019-11-22 | 首钢集团有限公司 | A kind of high nitrogen type hot die steel and preparation method thereof |
| CN111004963A (en) * | 2019-12-31 | 2020-04-14 | 重庆优特模具有限公司 | Die steel for die casting and processing method thereof |
| CN114411043A (en) * | 2021-12-24 | 2022-04-29 | 钢铁研究总院 | A kind of preparation method of large-scale hot forging hot work die steel |
| CN115505839A (en) * | 2022-08-18 | 2022-12-23 | 马鞍山钢铁股份有限公司 | High-nitrogen high-strength high-toughness H13 die steel and short-process continuous casting and rolling production process thereof |
| CN116144875A (en) * | 2023-01-09 | 2023-05-23 | 江苏天隆铸锻有限公司 | A kind of iron and steel refining smelting and forging process |
| CN116445821A (en) * | 2023-04-28 | 2023-07-18 | 鞍钢股份有限公司 | Die steel resistant to mechanical strain and high in uniformity and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107974637A (en) * | 2017-12-19 | 2018-05-01 | 攀钢集团江油长城特殊钢有限公司 | A kind of hot die steel and preparation method thereof |
| CN109023153A (en) * | 2018-09-07 | 2018-12-18 | 吉林大学 | Micro nano-TiC particle Strengthening and Toughening forging hot die steel in a kind of original position and preparation method thereof |
| CN110218955A (en) * | 2019-04-18 | 2019-09-10 | 江油市长祥特殊钢制造有限公司 | The preparation method that SA182F92 prevents delta ferrite from generating |
| CN110484830A (en) * | 2019-09-05 | 2019-11-22 | 首钢集团有限公司 | A kind of high nitrogen type hot die steel and preparation method thereof |
| CN110484830B (en) * | 2019-09-05 | 2020-07-24 | 首钢集团有限公司 | A kind of high nitrogen type hot work die steel and preparation method thereof |
| CN111004963A (en) * | 2019-12-31 | 2020-04-14 | 重庆优特模具有限公司 | Die steel for die casting and processing method thereof |
| CN114411043A (en) * | 2021-12-24 | 2022-04-29 | 钢铁研究总院 | A kind of preparation method of large-scale hot forging hot work die steel |
| CN115505839A (en) * | 2022-08-18 | 2022-12-23 | 马鞍山钢铁股份有限公司 | High-nitrogen high-strength high-toughness H13 die steel and short-process continuous casting and rolling production process thereof |
| CN116144875A (en) * | 2023-01-09 | 2023-05-23 | 江苏天隆铸锻有限公司 | A kind of iron and steel refining smelting and forging process |
| CN116445821A (en) * | 2023-04-28 | 2023-07-18 | 鞍钢股份有限公司 | Die steel resistant to mechanical strain and high in uniformity and preparation method thereof |
| CN116445821B (en) * | 2023-04-28 | 2024-05-14 | 鞍钢股份有限公司 | Die steel resistant to mechanical strain and high in uniformity and preparation method thereof |
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