Hot work tools operate at elevated temperatures and form different products in e.g. aluminum, steel or other metals.The most common application areas in hot work are die-casting, extrusion and forging. The high working temperatures put very high demands on the tool steel. The properties’ profile of material used for hot work should include an excellent hot strength as well as a very good ductility and toughness.
Other important tool steel properties are a high resistance against thermal cyclic stresses and a good hot wear resistance. The properties profile should be even in all directions in the tool steel for best performance.
- Good strength at high temperatures
- High ductility and toughness
Our business practice is to offer tooling solutions to the hot work industry with the goal of increasing productivity and optimizing tool life.As a result of our experience in both the production and research of hot work die steels, MD Exports LLP has been able to consistently improve material quality with regard to toughness, temper resistance, homogeneity and degree of purity.
These material improvements provide considerable advantages to both the toolmaker and end user, including the following:
- Resistance to heat checking
- Erosion resistance
- Increased hot strength
- And ultimately, longer tool life.
Specification
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Steel Classification
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Standard
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Germany
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Japan
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USA
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France
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England
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Italy
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China
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DIN
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W. Nr.
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JIS
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AISI
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AFNOR
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BS
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UNI
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GB
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Hot Work Tool Steel
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Z38CDV5
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BH11
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X37CrMoV5-1KU
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4Cr5MoSiV
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55NCDV7
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BH224-5
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44NiCrMoV7-KU
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5CrNiMo
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56NiCrMoV7-KU
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1.2767
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45NiCrMo16
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Poland
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Caechia
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Austria
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International
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Russia
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Assab
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Bohler
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Edelstahl
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Thyssen
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Hitachi
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PN
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CSN
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ONORM
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ISO
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GOST
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Buderus
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40CrMoV5
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4KH5MF1S
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8407
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W302
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2344 ISO B
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2344
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DAC
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WCL
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19552
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W300
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X37CrMoV5-1
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4KH5MFS
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W400
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WNL
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19662
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W501
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55NiCrMoV7
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5KHNM
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SOMDIE
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W500
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2714
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2714
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DM
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WNLV
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19663
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W502
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5KHNV
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QRO90
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W303
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2367 ISO B
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2367
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Grane
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K600
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X45CrNiMo4
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1.2344 / X40CrMoV5-1 Steel
DIN 1.2344 / X40CrMoV5-1 Steel is an air cooling type of hot work die steel. The Vanadium content of din 1.2344 is twice over 1.2343 steel,which improving hot hardness of X40CrMoV5-1. When the temperature of material is 600°C,the 1.2344 steel also has a wonderful strength and hardness,with high wear resistance and toughness.
Equivalent Grades
AISI/ASTM: H13
JIS: SKD61
Chemical Composition
C: 0.35-0.42; Si: 0.80-1.20; Mn: 0.25-0.50; P: max0.030; S: max0.020;
Cr: 4.80-5.50; Mo: 1.20-1.50; V: 0.85-1.15;
Form of 1.2344 Steel
Round / Square / Flat Bars,
Size of X40CrMoV5-1
Round bar
dia. 1-16mm (Cold Drawn);
dia. 10-50mm (Hot Rolled);
dia. 50-180mm (Hot Forged);
dia. 180-300mm (Free Forging);
Flat bar
Thickness: 1-2.5mm(Cold Rolled); 1.5-20mm(Hot Rolled); 20-300mm(Hot Forged);
Width: Max800mm;
Surface Condition
Black, Peeled, Rough Machined, Ground
Hardness of 1.2344 Steel
Annealed (+A): max 235HB
Mechanical Properties of 1.2344 / X40CrMoV5-1
Tensile strength
Yield point
Percentage reduction of area after fracture
Elongation after fracture
Impact test
Quenched and Tempered (+QT) of 1.2344 Steel
1. Preheat din 1.2344 steel to the temperature of 775-805°C
2. Transfer to salt bath standing at the hardening temperature of 1000°C.
3. Soak and quench into salt standing at 550°C.
4. Withdraw and cool in air.
5. Heat uniformly to the required temperature as per two hours / 25mm of total thickness.
6. Withdraw from the furnace and cool in air.
7. The usual tempering temperature is 550°C which depending on the hardness requirements.
Applications of X40CrMoV5-1 steel
X40CrMoV5-1 Steel is widely used in the manufacture of forging hammer,die tools,hot extrusion mould and core rod. DIN 1.2344 steel is also good for forging press molding,precision forging machine with mould set piece,aluminum,copper and other alloy die-casting mold.
1.2343 / X37CrMoV5-1 Steel
DIN 1.2343 / X37CrMoV5-1 Steel is an air cooling type of hot-work die steel. In the medium temperature,din 1.2343 has good heat strength,high toughness and wear resistance. In the working temperature,X37CrMoV5-1 steel has good cold and hot fatigue resistance and deformation during heat treatment.
Chemical Composition
C: 0.33-0.41; Si: 0.80-1.20; Mn: 0.25-0.50; P: max0.030; S: max0.020;
Cr: 4.80-5.50; Mo: 1.10-1.50; V: 0.30-0.50;
Equivalent Grades
AISI/ASTM: H11
JIS: SKD6
Form of 1.2343
Round / Square / Flat Bars, Plates, Blocks.
Size of X37CrMoV5-1
Round bar
dia. 1-16mm (Cold Drawn);
dia. 10-50mm (Hot Rolled);
dia. 50-180mm (Hot Forged);
dia. 180-300mm (Free Forging);
Flat bar
Thickness: 1-2.5mm(Cold Rolled); 1.5-20mm(Hot Rolled); 20-300mm(Hot Forged);
Width: Max800mm;
Surface Condition of 1.2343 Steel
Black, Peeled, Rough Machined, Ground
Hardness of X37CrMoV5-1 Steel
Annealed (+A): max 235HB
Mechanical Properties of 1.2343 / X37CrMoV5-1
Tensile strength
Yield point
Percentage reduction of area after fracture
Elongation after fracture
Impact test
Quenched and Tempered (+QT) of W-Nr 1.2343 Steel
1. Preheat din 1.2343 steel to the temperature of 790°C
2. Transfer to salt bath standing at the hardening temperature of 1000-1010°C.
3. Soak and quench into salt standing at 550°C.
4. Withdraw from the furnace and cool in air.
5. The usual tempering temperature is 550°C which depending on the hardness requirements.
Applications of DIN X37CrMoV5-1 Steel
1.2343 steel is used to make die casting,aluminum casting with hot extrusion and perforation using the tool and the mandrel,press forging die,plastic mould,etc. It’s also used to make aircraft’s structure parts which works at 400-500°C.
1.2714 / 55NiCrMoV7
DIN 1.2714 / 55NiCrMoV7 Steel is a low-alloy hot work tool steel. It has good toughness,strength and wear resistance. Due to the molybdenum in the 1.2714 steel, it is not sensitive to temper brittleness. 55NiCrMoV7 has good hardenability and the hardness of the parts is almost the same.
Chemical Composition
C: 0.50-0.60; Si: 0.10-0.40; Mn: 0.60-0.90; P: max0.030; S: max0.030;
Cr: 0.80-1.20; Mo: 0.35-0.55; Ni: 1.50-1.80; V: 0.05-0.15;
Equivalent Grades
AISI/ASTM: L6
JIS: SKT4
GB: 5CrNiMo
Form of 1.2714
Round / Square / Flat / Hollow Bars, Shafts, Rollers, Blocks
Size of 55NiCrMoV7
- As Forged
Round bar
Size: Dia.80-1,000mm
Length: 3,000-10,000mm
Square bar
Size: 150×150-600×600mm
Length: 3,000-8,000mm
(Forged Flat Bars, Shafts, Rollers and Blocks can be Customized)
- As Rolled
Round Bar
Size: Dia.10-300mm
Length: 3,000-10,000mm(can be Customized)
Surface Condition of 1.2714 Steel
Black, Rough Machined, Turned
Hardness of 55NiCrMoV7 Steel
Annealed (+A): 197-241HB
Mechanical Properties of 1.2714 / 55NiCrMoV7
Tensile strength
Yield point
Percentage reduction of area after fracture
Elongation after fracture
Impact test
Quenched and Tempered (+QT) of W-Nr 1.2714 Steel
1. Heat din 1.2714 steel slowly to 830-860°C;
2. Soak at this temperature then quench in oil;
3. Temper as soon as 55NiCrMoV7 steel reach room temperature (20°C);
4. Heat uniformly to the suitable temperature of 550°C;
5. Withdraw the material from the furnace and cool in the air.
Applications of DIN 55NiCrMoV7 Steel
Used to produce various types of large & medium forging dies.