CN109628831A - A kind of economical hot die steel alloying component - Google Patents
A kind of economical hot die steel alloying component Download PDFInfo
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- CN109628831A CN109628831A CN201811621742.0A CN201811621742A CN109628831A CN 109628831 A CN109628831 A CN 109628831A CN 201811621742 A CN201811621742 A CN 201811621742A CN 109628831 A CN109628831 A CN 109628831A
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- steel
- hot die
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- die steel
- economical
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- 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
-
- 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
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
Abstract
The present invention relates to a kind of economical hot die steel alloying components, belong to steel alloy manufacturing process technology field, it is characterised in that each main alloy element mass percent of the steel are as follows: C 0.30~0.35%；Si≤0.30%；Mn 1.00~1.50%；Cr 2.50~3.00%；Mo 0.30~0.50%；V 0.20~0.40%；Nb 0.03~0.05%；P≤0.010, S≤0.002, Fe surplus.Finished product mechanical property using the economical hot die steel alloying component manufacture of the present invention quite or surmounts with H13 steel.The economical hot die steel alloying ingredients mentality of designing of the present invention meets current Iron and Steel Enterprises in China and is badly in need of energy-saving, the transition theory of cost efficiency.
Description
Technical field
The present invention relates to steel alloy manufacturing process technology field, be specifically related to a kind of economical hot-work die steel alloy at
Point.
Background technique
The biggish hot-forging die of domestic market amount, low and middle-end compression mod, hot extruding die etc. mainly use medium alloy steel H13
It is produced with H11 series.Medium alloy steel has preferable high-temperature comprehensive property, but in use, often intensity is had a surplus,
And toughness is insufficient, part hot-work die is recycled and occurs as soon as a large amount of hot tearings less than 1000 subsurfaces, can not since defect is deeper
It repairs a die, causes to scrap then, affect the production of part, while also increasing the cost of part production, extend the production cycle, and look forward to
Sparetime university's amount deposit will cause the pressure of capital chain week swivel link, if deposit is not enough, so that enterprise's emergency mobile can drop significantly
It is low, influence the production plan of entire enterprise.In addition, molybdenum, vanadium since medium alloy steel alloy content is higher, especially in H13 steel
Element price is climbed to a higher point again and again, cost of alloy steel mill and is dared not accept at present with having held per family.Thus, in order to obtain the active in market
Property, respond the positive policies such as " energy-saving ", " cost efficiency " " environmentally protective " of country's proposition, a kind of warp of China's independent research
Ji type hot die steel is very urgent.Meanwhile it being obtained by reasonable heat treatment in advance and Final Heat Treatment Process good
Materials'use performance systematically promotes mold steel making technology and quality level, makes to reduce material cost and manufacturing cost
China the research and development ability of mould steel, manufacture level, using in terms of have qualitative leap.
Summary of the invention
The main purpose of the present invention is to provide a kind of economical hot die steel alloying components, using economical low-alloy
Chemical conversion divides mentality of designing, on the basis of high-alloy steel H13, reduces Cr, Si and the more expensive Mo of price, V content, improves price cheap
Mn content, and be equipped with micro Nb to guarantee the performance of steel, to meet Current Domestic hot die steel cost of alloy and manufacture
This demand at high cost.
To achieve the above objectives, the technical solution adopted by the present invention is in a kind of economical hot die steel alloying component
The mass percent of each main alloy element is as follows: C 0.30~0.35%；Si≤0.30%；Mn 1.00~1.50%；Cr
2.50~3.00%；Mo 0.30~0.50%；V 0.20~0.40%；Nb 0.025~0.05%；P≤0.010%, S≤
0.002%, Fe surplus.
Preferably, the mass percent of each main alloy element is as follows: C 0.30%；Si 0.30%；Mn 1.50%；Cr
2.50%；Mo 0.45%；V 0.26%；Nb 0.028%；P 0.009%, S 0.002%, Fe surplus.
Preferably, the mass percent of each main alloy element is as follows: C 0.35%；Si 0.30%；Mn 1.00%；Cr
3.00%；Mo 0.28%；V 0.37%；Nb 0.045%；P 0.010%, S 0.002%, Fe surplus.
The present invention compared with the existing technology, has the following advantages and beneficial effects:
Through alloy optimization design, hot die steel of the present invention is compared to middle alloy H13 steel: big in terms of one side material cost
Big to reduce, steel alloy sum total gold content of the present invention has dropped 50% on H13 base steel plinth, and especially more expensive alloy Mo, V are reduced
Amplitude is larger；Second is that by properly increasing Mn content, and micro Nb is added, it ensure that wanting for current hot-work die service performance
It asks；Third is that the development of economical hot die steel meets current country to iron and steel enterprise's " energy-saving ", " cost efficiency " " green
The transition requirement of environmental protection ".
Detailed description of the invention
Fig. 1 is that economical hot die steel and H13 steel are quenched and be tempered state metallographic comparison diagram in preferred embodiment of the present invention.
Fig. 2 is economical hot die steel and H13 steel room temperature V2 type notch impact toughness pair in preferred embodiment of the present invention
Than figure.
Fig. 3 is economical hot die steel and H13 steel thermal stability comparison diagram in preferred embodiment of the present invention.
Fig. 4 is economical hot die steel and H13 steel surface and section heat fatigue cracking shape in preferred embodiment of the present invention
Looks comparison diagram.
Specific embodiment
It is described below for disclosing the present invention so that those skilled in the art can be realized the present invention.It is excellent in being described below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.
Embodiment 1
It is as follows using the alloying component and its mass percent of economical hot die steel in the present embodiment:
Embodiment 2
It is as follows using the alloying component and its mass percent of economical hot die steel in the present embodiment:
It is equal using two kinds in embodiment 1 and embodiment 2 economical hot die steel alloying component manufacture finished product round steel specifications
For Φ 150mm, sampling is tested for the property and compares with the H13 steel under equal conditions.
Round steel specification using the economical hot die steel alloying component manufacture of the present invention is Φ 150mm, and sampling carries out
Performance test is simultaneously compared with the H13 steel under equal conditions.
It quenches and is tempered state metallographic
The economical hot die steel (embodiment 1 and embodiment 2) of the present invention, which is quenched, is tempered the typical returning fire plate of state metallographic presentation
Martensite+carbide feature, and lath martensite feature of H13 under the conditions of similar stiffness has not been it is obvious that test knot
Fruit is as shown in Fig. 1.
It quenches and is tempered state impact flexibility
Lateral impact sample is taken on the blank that hardness is 35~37HRC, specimen size is 10mm × 10mm × 55mm, is opened
V2 type notch, under the conditions of similar stiffness, the economical hot die steel (embodiment 1 and embodiment 2) of the present invention is much higher than H13 steel,
Test result is as shown in Fig. 2.
Thermal stability
The economical hot die steel (embodiment 1 and embodiment 2) of the present invention is stablized under the conditions of 620 DEG C with H13 steel
Property comparative experiments, for H13 steel by quenching after tempering, hardness number and the economical hot die steel of the present invention are close, are 35
~37HRC, test result is as shown in Fig. 3, and the economical hot die steel of the present invention increases more, thermal stability due to Mn content
Quite can even it surmount compared with H13 steel.
Thermal fatigue property
Cold cycling is carried out under the conditions of room temperature~700 DEG C, after 3000 cold cyclings, the comparison present invention is economical
The heat fatigue surface and section crack morphology of hot die steel (embodiment 1 and embodiment 2) and H13 steel, as shown in Fig. 4.By
Fig. 4 is as it can be seen that after the economical hot die steel thermal fatigue test of the present invention, and more carefully compared with H13, section crackle is deep for surface net cracks
More shallowly compared with H13, thermal fatigue property is better than H13 steel to degree.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection scope by appended claims and its
Equivalent defines.
Claims (3)
1. a kind of economical hot die steel alloying component, which is characterized in that the mass percent of each main alloy element is as follows:
C 0.30~0.35%；Si≤0.30%；Mn 1.00~1.50%；Cr 2.50~3.00%；Mo 0.30~0.50%；V
0.20~0.40%；Nb 0.025~0.05%；P≤0.010%, S≤0.002%, Fe surplus.
2. economical hot die steel alloying component according to claim 1, which is characterized in that each main alloy element
Mass percent is as follows: C 0.30%；Si 0.30%；Mn 1.50%；Cr 2.50%；Mo 0.45%；V 0.26%；Nb
0.028%；P 0.009%, S 0.002%, Fe surplus.
3. economical hot die steel alloying component according to claim 1, which is characterized in that each main alloy element
Mass percent is as follows: C 0.35%；Si 0.30%；Mn 1.00%；Cr 3.00%；Mo 0.28%；V 0.37%；Nb
0.045%；P 0.010%, S 0.002%, Fe surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811621742.0A CN109628831A (en) | 2018-12-28 | 2018-12-28 | A kind of economical hot die steel alloying component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811621742.0A CN109628831A (en) | 2018-12-28 | 2018-12-28 | A kind of economical hot die steel alloying component |
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| Publication Number | Publication Date |
|---|---|
| CN109628831A true CN109628831A (en) | 2019-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811621742.0A Pending CN109628831A (en) | 2018-12-28 | 2018-12-28 | A kind of economical hot die steel alloying component |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101302599A (en) * | 2008-07-01 | 2008-11-12 | 上海大学 | Niobium microalloyed high strength hot work die steel and preparation thereof |
| CN101392353A (en) * | 2008-10-30 | 2009-03-25 | 上海大学 | High manganese and low chromium type high strength and toughness hot-work die steel and preparation method thereof |
| CN102312163A (en) * | 2011-09-02 | 2012-01-11 | 上海大学 | Steel for mandrel pipe mill mandril and preparation technology thereof |
-
2018
- 2018-12-28 CN CN201811621742.0A patent/CN109628831A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101302599A (en) * | 2008-07-01 | 2008-11-12 | 上海大学 | Niobium microalloyed high strength hot work die steel and preparation thereof |
| CN101392353A (en) * | 2008-10-30 | 2009-03-25 | 上海大学 | High manganese and low chromium type high strength and toughness hot-work die steel and preparation method thereof |
| CN102312163A (en) * | 2011-09-02 | 2012-01-11 | 上海大学 | Steel for mandrel pipe mill mandril and preparation technology thereof |
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Application publication date: 20190416 |