| Steel Grade | M310H |
|---|---|
| Length | 19mm-5000mm |
| Width | 19mm-2350mm |
| Thickness | 20mm-900mm |
| Hardness | 32-36 HRC |
| MOQ | 1 piece |
| Lead Time | 1–3 days after confirmation |
| Shipping From | Dongguan City, China |

With a delivered hardness of 32–36 HRC, M310H pre-hardened plastic mold steel exhibits excellent resistance to acid, corrosion, and strain. With a delivered hardness of 32–36 HRC, M310H pre-hardened plastic mold steel exhibits exceptional resistance to acid, corrosion, and strain. In addition to meeting the specifications for mold operation and storage in humid environments, it is compatible with acidic injection molding materials such as PVC, PP, EP, PC, and PMMA. In addition to meeting the specifications for mold operation and storage in humid environments, it is compatible with acidic injection molding materials such as PVC, PP, EP, PC, and PMMA.
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| Steel Grade | M310H |
|---|---|
| Length | 19mm-5000mm |
| Width | 19mm-2350mm |
| Thickness | 20mm-900mm |
| Hardness | 32-36 HRC |
| MOQ | 1 piece |
| Lead Time | 1–3 days after confirmation |
| Shipping From | Dongguan City, China |
Full Machining Services
Comprehensive machining capabilities for complete mold steel processing.
Equipped with advanced machinery to ensure quality, precision, and consistency.
















With over 17 years of hands-on experience, we understand mold factories' technical and delivery needs at every stage.
We support orders starting from a single piece — ideal for prototyping, urgent repairs, or small-batch production.
Our 24/7 workshop ensures most orders are processed within 1–3 working days. Same-day delivery is available in Dongguan.
From cutting, CNC milling, and grinding to heat treatment — we provide full-service mold steel machining.
We maintain a stable stock of popular steel grades, such as NAK80, P20, and S136, ensuring a quick turnaround without delays.
Every piece undergoes hardness testing and dimensional checks. Material certificates and inspection reports are available upon request.
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