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Premium Special Steel Solutions

Suojin Steel provides high-quality mold steel, stainless steel, high-speed steel, copper alloys, and superalloys with one-stop processing services from raw material to precision machining.

About Suojin Steel

Suojin Steel started working on high-quality mold materials in 1998 and has extensive supply experience, including raw material cutting, heat treatment, and machining support.

Since its establishment, we have always adhered to the customer-oriented service tenet, quickly responding to the constantly changing needs of customers, and providing comprehensive and meticulous supply services for them.

We strive to become a socially valuable enterprise by delivering premium special steel products and integrated processing solutions trusted by industries worldwide.

Suojin Steel Workshop

Our Product Range

We provide various special steels required in industrial fields such as mold steels, high-speed steels, stainless steels, aluminum alloys, tungsten steels, and copper alloys.

Mold Steel

Mold Steel

High-performance steel for injection molds, die casting, and forging applications. Excellent wear resistance and thermal stability.

  • • Grades: H13, P20, S136, 718
  • • Applications: Plastic molds, die casting
  • • Heat treatment supported
Stainless Steel

Stainless Steel

Corrosion-resistant alloys ideal for harsh environments. Available in austenitic, martensitic, and duplex grades.

  • • Grades: 304, 316, 420, 17-4PH
  • • High oxidation resistance
  • • Precision machining available
High Speed Steel

High Speed Steel

Exceptional hardness and heat resistance for cutting tools and high-temperature applications.

  • • Grades: M2, M35, M42, T15
  • • Retains hardness up to 600°C
  • • Ideal for drills and end mills
Alloy Tool Steel

Alloy Tool Steel

Enhanced toughness and wear resistance for stamping, blanking, and forming tools.

  • • Grades: D2, A2, O1, S7
  • • Deep hardening capability
  • • Excellent dimensional stability
Copper Alloy

Copper Alloy

High thermal and electrical conductivity. Used in electrodes, molds, and electrical components.

  • • Grades: C18200, C18150
  • • High strength at elevated temps
  • • Machinable to tight tolerances
Superalloys

Superalloys & Nickel-Based Alloys

Extreme temperature and corrosion resistance for aerospace, energy, and chemical industries.

  • • Grades: Inconel 718, Hastelloy C276
  • • Oxidation resistant up to 1000°C
  • • High creep strength
Titanium Alloy

Titanium & Aluminum Alloys

Lightweight, high-strength materials for aerospace, automotive, and medical applications.

  • • Grades: Ti-6Al-4V, 7075, 6061
  • • High strength-to-weight ratio
  • • Corrosion resistant
Galvanized Steel

Galvanized & Finished Steel Products

Pre-treated and processed steel products ready for industrial use with enhanced durability.

  • • Hot-dip galvanized options
  • • Custom finishing services
  • • Anti-corrosion protection

One-Stop Integrated Services

From raw material sawing to rough machining, heat treatment to precision machining — we save you time and production costs with seamless processing.

Raw Material Supply

High-quality steel sourced from trusted mills including Baosteel, Fushun Special Steel, Tiangong International, and German partners like KIND&CO.

Cutting & Sawing

Precision cutting services with CNC saws and band saws to deliver exact dimensions and reduce material waste.

Heat Treatment

Annealing, quenching, tempering, and stress relieving to enhance mechanical properties and dimensional stability.

Precision Machining

CNC milling, turning, grinding, and EDM services to deliver finished or semi-finished components with tight tolerances.

Our Quality Assurance

At Suojin Steel, quality is not just a goal — it's a standard. We ensure every product meets international specifications and customer requirements.

  • Strict raw material inspection from certified steel mills
  • Advanced testing equipment: spectrometers, hardness testers, CMM
  • Full traceability from batch to final product
  • Comprehensive documentation and certification
Quality Control Lab
25+
Years of Experience
100+
Global Clients
50+
Steel Grades
1998
Founded

Frequently Asked Questions

What types of mold steel do you offer?

We supply a wide range including H13, P20, S136, 718, and D2. Each grade is selected for specific applications like die casting, plastic injection, and forging.

Do you provide heat treatment services?

Yes, we offer full heat treatment services including annealing, quenching, tempering, and stress relieving to meet your technical requirements.

Can you process custom shapes and sizes?

Absolutely. We provide CNC machining, milling, turning, and grinding to deliver custom parts with tight tolerances.

What certifications do your materials have?

Our materials come with mill test certificates (MTC) and can be supplied with additional certifications upon request.

Get in Touch

For inquiries, quotes, or technical support, contact us directly.

Contact Information

Email: aimilizhao@gmail.com

WhatsApp: +86 158 2111 8889

Available 24/7

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