718H Pre-Hardened Steel Large Automotive Injection Mould with 500000 Shot Life Guarantee
718H Pre-Hardened Mold Steel Large Automotive Injection Mould with 500000 Shot Life Guarantee
For large automotive and industrial injection molds, Xiamen Creator Technology Co., Ltd. selects 718H pre-hardened mold steel offering excellent machinability, uniform hardness (33-38 HRC), and reliable performance over 500,000+ production cycles. 718H eliminates post-machining heat treatment distortion, making it the cost-effective choice for medium to large molds.
Key Features & Advantages
- 718H pre-hardened mold steel: 33-38 HRC, machined directly
- No post-machining heat treatment distortion risk
- Good polishability and photo-etching texture compatibility
- Excellent toughness for large mold inserts and core pins
- Weldable and repairable for extended mold service life
- Cost-effective alternative to through-hardened steels for large molds
Technical Specifications
| Mold Steel | 718H (DIN 1.2738 Modified) |
| Hardness | 33-38 HRC (Pre-hardened) |
| Polishability | SPI A2-A3 |
| Texture Compatibility | VDI, Mold-Tech, Photo-etching |
| Mold Life | 500,000+ shots |
| Max Block Size | Custom blocks available |
| Application | Automotive Interior/Exterior, Large Housings |
| Tolerance | ±0.02mm |
Manufacturing Excellence
Our large mold steel inventory includes 718H blocks in standard and custom sizes from certified European and Japanese mills. We machine 718H directly in its pre-hardened state, eliminating the risk of distortion from post-machining heat treatment. This makes 718H our recommended choice for large automotive molds where dimensional stability and cost efficiency are paramount.
Frequently Asked Questions
Q: What is the advantage of 718H over through-hardened steels?
A: 718H is supplied pre-hardened (33-38 HRC), so we machine it directly without heat treatment. This eliminates heat treatment distortion, reduces lead time by 5-7 days, and ensures the mold maintains its machined accuracy.
Q: Is 718H suitable for large automotive molds?
A: Yes. 718H is the industry standard for large automotive interior and exterior trim molds, combining good hardness with excellent machinability and toughness.
Q: Can 718H molds be repaired or modified?
A: Yes. 718H is weldable and machinable, making it easy to repair or modify molds during their service life without special heat treatment procedures.
Q: How does 718H compare to P20?
A: 718H is a premium version of P20 with improved hardenability, better polishability, and more uniform hardness through thicker sections, making it ideal for medium to large molds.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.