| Steel Grade | D3 |
|---|---|
| Length | 19mm-5000mm |
| Width | 19mm-2350mm |
| Thickness | 20mm-900mm |
| Hardness | 58-60 HRC |
| MOQ | 1 piece |
| Lead Time | 1–3 days after confirmation |
| Shipping From | Dongguan City, China |

D3 hardware stamping die steel is a high-carbon, high-chromium alloy cold work tool steel refined by vacuum degassing, ensuring excellent steel cleanliness. It achieves a quenching hardness of 58–60 HRC, with good hardenability, minimal distortion, uniform carbide distribution, high wear resistance, and high toughness, making it resistant to cracking. It is suitable for cutting dies, thin steel sheet blanking dies, cold extrusion dies, etc. We offer one-stop services including fixed-length cutting, CNC machining, and heat treatment.
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| Steel Grade | D3 |
|---|---|
| Length | 19mm-5000mm |
| Width | 19mm-2350mm |
| Thickness | 20mm-900mm |
| Hardness | 58-60 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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