Injection Mould Tool Steel
Fushun are main manufacturer of tool steel for Injection Mould.
What is Injection Mould?
An injection mold is a specialized tool used in the manufacturing process of plastic products through injection molding. It consists of two main parts: the core (male) and cavity (female), which when closed together form the shape of the desired plastic product. These precision-engineered molds are essential components in mass production, enabling manufacturers to produce complex plastic parts with high accuracy and consistency.
The primary function of injection molds is to receive molten plastic material injected under high pressure and temperature, shape it according to the mold design, and cool it to form the final product. These molds also incorporate various features such as cooling channels, ejector systems, runners, gates, and vents to ensure proper material flow, cooling, and part ejection. They are designed to withstand thousands of production cycles while maintaining dimensional accuracy and surface quality.
Injection molds are typically manufactured from tool steels and alloys that possess specific characteristics crucial for their performance. These materials exhibit high wear resistance, excellent thermal conductivity, good machinability, and superior hardness. The mold materials must also demonstrate strong resistance to thermal fatigue, corrosion, and mechanical stress. Additional surface treatments and coatings are often applied to enhance durability and improve release properties, ensuring longer mold life and better part quality.
Injection Mould Materials
| — | — | 1.2825 | 95MnWCr5 | MnCrWV |
| — | — | 1.2824 | 70MnMoCr8 | 7CrMn2Mo |
| H11 | SKD6 | 1.2343 | X37CrMoV5-1 | 4Cr5MoSiV |
| H13 | SKD61 | 1.2344 | X40CrMoV5-1 | 4Cr5MoSiV1 |
| — | — | 1.1191 | C45U | SM45 |
| — | — | — | SM50 | |
| — | — | SM55 | ||
| P20 | — | 1.2311 | 35CrMo7 | 3Cr2Mo |
Chemical Composition of Injection Mould
| Grade | C | Si | Mn | Cr | W | Mo | V |
| MnCrWV | 0.90～1.05 | 0.10～0.40 | 1.05～1.35 | 0.50～0.70 | 0.50～0.70 | 0.05～0.15 | |
| 7CrMn2Mo | 0.65～0.75 | 0.10～0.50 | 1.80～2.50 | 0.90～1.20 | 0.90～1.40 | ||
| 4Cr5MoSiV | 0.33～0.43 | 0.80～1.20 | 0.20～0.50 | 4.75～5.50 | 一 | 1.10～1.60 | 0.30～0.60 |
| 4Cr5MoSiV1 | 0.32～0.45 | 0.80～1.20 | 0.20～0.50 | 4.75～5.50 | 1.10～1.75 | 0.80～1.20 | |
| SM45 | 0.42～0.48 | 0.17～0.37 | 0.50～0.80 | ||||
| SM50 | 0.47～0.53 | 0.17～0.37 | 0.50～0.80 | ||||
| SM55 | 0.52～0.58 | 0.17～0.37 | 0.50～0.80 | — | |||
| 3Cr2Mo | 0.28～0..40 | 0.20～0.80 | 0.60～1.00 | 1.40～2.00 | 0.30～0.55 |
Properties of Injection Mould Steel
| Grade | Annealed HBW |
| MnCrWV | ≤255 |
| 7CrMn2Mo | ≤235 |
| 4Cr5MoSiV | ≤229 |
| 4Cr5MoSiV1 | ≤229 |
| SM45 | 155～215 |
| SM50 | 165～225 |
| SM55 | 170～230 |
| 3Cr2Mo | 235 |
Available Shapes from Fushun
*Round Bar
*Flat Bar
*Block
*Plate
Contact Information
Welcome your inquiry. We will send you a free quotation within 24 hours.
