| Steel Grade | M310 |
|---|---|
| Length | 19mm-5000mm |
| Width | 19mm-2350mm |
| Thickness | 20mm-900mm |
| Hardness | 48-52 HRC |
| MOQ | 1 piece |
| Lead Time | 1–3 days after confirmation |
| Shipping From | Dongguan City, China |

M310 stainless mold steel provides excellent corrosion resistance, good toughness, and stable performance in humid or acidic environments. After heat treatment, it can reach a hardness of 48–52 HRC, making it suitable for plastic injection molds requiring higher wear resistance and surface durability. It is widely used for molding corrosive plastics such as PVC, PP, PE, PC, and PMMA. Supplied as mold steel blocks with cut-to-size machining.
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| Steel Grade | M310 |
|---|---|
| Length | 19mm-5000mm |
| Width | 19mm-2350mm |
| Thickness | 20mm-900mm |
| Hardness | 48-52 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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