Hot Work Special Tool Steel Oil Cooling For Large Forging Dies 5CrNiMo / SKT4
1.2714 / L6 / 5CrNiMo / SKT4 Hot Work Mold Steel of Special Tool Steel for Large Forging Dies
Alloy tool steel with lower content of alloy elements. It is also the traditional hammer forging die steel. It has good toughness, strength and wear resistance, hardenability, and 300 * 300 * 400mm workpiece can be fully quenched. The utility model is suitable for producing large and medium-sized hammer forging dies (>400mm) with complicated shape and heavy impact load.
► Chemical Composition(%)
| Grade | C | Si | Mn | Cr | Mo | P | S | Ni | V |
| 5CrNiMo | 0.50-0.60 | ≤0.4 | 0.50-0.80 | 0.50-0.80 | 0.10-0.30 | ≤0.030 | ≤0.030 | 1.40-1.80 | - |
| L6 | 0.65-0.75 | 0.10-0.50 | 0.25-0.80 | 0.60-1.20 | ≤0.5 | ≤0.030 | ≤0.030 | 1.20-2.00 | - |
| 1.2714 | 0.50-0.60 | 0.10-0.40 | 0.60-0.90 | 0.80-1.20 | 0.35-0.55 | ≤0.030 | ≤0.030 | 1.50-1.80 | 0.55-0.15 |
| SKT4 | 0.50-0.60 | 0.10-0.40 | 0.60-0.90 | 0.80-1.20 | 0.35-0.55 | ≤0.030 | ≤0.020 | 1.50-1.80 | 0.55 |
► Available Dimension
| Thickness (mm) | Width (mm) | Length (mm) |
| 300-800 | 600-1200 | 2000-6000 |
► Features
a. Heat resistant wear-resistant forged steel, excellent impact resistance, with proper hardness and good toughness.
b. The composite has good mechanical properties and high hardenability, and can make the steel with larger section size obtain a more uniform hardness.
c. Good optical rotation performance is made on the surface of the mold with low roughness value of 90.
d. Quenching and tempering treatment, hardness of 52 ~ 62HRC (pre hardening),
e. Can be used directly after cold processing into mold, ensure the use of the mold performance, but also to avoid the heat treatment caused by the deformation of the mold.
► Application
a. The steel is used to make all kinds of big and medium hot forging dies
b. Suitable for all kinds of medium and large hammer forging dies with complex shape and heavy impact load
c. A large forging die requiring better toughness than 5CrMnMo.
► Recommend Heat Treatment
| Quenching | Tempering | |||||
| Heating temperature(ºC) | Cooling way | Hardness (HRC) | Tempering temperature(ºC) | Tempering number | Hardness (HRC) | |
| First preheating | Last heating | |||||
| 600-650 | 830-860 | Oil Cooling | 52-62 | 150-180 | 1 | 53-58 |
► Process: EAF + LF + VD + Forged + Heat Treatment (optional)
► Payment: 30% advance by T/T; Balance pay before the shipment against shipping documents or irrevocable LC at sight.
► Delivery condition: For abundant stock, 7-15 days.For customized products, 30-50 days.
Company Profile
Guangzhou ChangFeng Steel Co.,Ltd, is located in Guangzhou city, it was established in 2012,and is an Professional import and export company with ten years experience of selling special steel, which mainly sells plastic die steel, hot work die steel, cold work mould steel, alloy structural steel, bearing steel, tool steel, stainless steel, carbon steel, etc.We also act on behalf of exporting steels of mainly steel factories in China, including Baogang group,Shagang group, Wenfeng group, Xingcheng group, Dongte group, Daye and so on.We are full of export experience to the market all over the word, such as America, Germany, France, Italy, Turkey, Singapore, Thailand, Malaysia, Vietnam, Taiwan, and Middle-East.
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