High Hardness Mold Steel Supplier - China

High Hardness Mold Steel Supplier | Precision Tool Steel for Extreme Conditions

High hardness mold steel is commonly used in the manufacturing of molds and dies for industrial applications.

It’s known for its ability to withstand high pressures and temperatures, making it ideal for processes like injection molding, die casting, and extrusion molding.

The steel is typically treated to achieve a high level of hardness, which enhances its durability and performance in shaping materials like plastics, metals, and rubber.

Some common types of high hardness mold steels include: H13 Tool Steel – Known for its excellent toughness and resistance to thermal fatigue, it's often used for hot working tools and molds.

P20 Steel – A versatile mold steel known for its ease of machining and good hardness properties.

D2 Steel – A high-carbon, high-chromium tool steel that is hardened to a very high level, offering great wear resistance.

S7 Steel – A shock-resistant steel with high toughness and hardness, suitable for heavy-duty applications.

Why Choose Our High Hardness Mold Steel?

​Unmatched Durability​

Hardness range: ​50-65 HRC​ (Customizable via vacuum heat treatment)

Wear resistance: ​3-5x lifespan​ vs.

conventional steel in aluminum die casting molds

Thermal stability: Maintains hardness up to ​600°C​ (H13 steel for hot forging dies)

​Material Innovation​

​Micro-alloying technology: Vanadium/Niobium additives refine grain structure (e.g., DC53 steel with 0.9% V)

​Surface hardening options: Nitriding/TiN coating for critical components like injection mold cores

​Certified Quality​

ISO 9001 & IATF 16940 certified production

Full traceability: Mill test reports with ​chemical composition & impact toughness data

Company Contact:

• Posted By: SHANGHAI JIEBAO METAL CO.,LTD

• Phone: 15996900537

• Address: No. 2518, Shebei Highway, Sheshan Town, Songjiang District, Shanghai 2 Building-1, Shanghai , Shanghai , China

• Email:

• Website: https://www.jiebaosteelgroup.com/

• Business Description: Shanghai Jiebao Metal Materials Co., Ltd. is located at No.
  
  2518, Shebei Highway, Sheshan Town, Songjiang District, Shanghai.
  
  We specialize in domestic and foreign high-quality mold steel sales, processing, and mold standard parts processing.
  
  Our Products:
  
  - 718h Steel
  
  - Mold Steel
  
  - A High Quality Hot Work Tool Steel
  
  - Steel Properties
  
  - Steel Uses Cr Mn Mo