| Steel Grade | T51620 |
|---|---|
| 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 |

T51620 pre-hardened plastic mold steel has a delivered hardness of 32–36 HRC with low nickel content, offering good machinability and general polishing capability. Its performance is second only to 718H, making it an ideal material choice for plastic molds without special requirements for surface brightness and finish.
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| Steel Grade | T51620 |
|---|---|
| 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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