Special steel manufacturer in China
About Keyspark Steel
Email: Sales@keysparksteel.comWhatsApp: +86 150 2405 6480
20+ Years
DIN / AISI / GB
15,000 Tons / Year
Global Export
What we do
Full-Process Special Steel Manufacturing
With 20 years of expertise, Keyspark Steel is a trusted manufacturer and global exporter of special steel. We specialize in mold steel, tool steel, alloy steel and high-speed steel for demanding industrial applications.
Our capabilities include in-house melting, forging, heat treatment, cutting, grinding and CNC machining. We strictly follow DIN, AISI and GB standards to serve buyers in aerospace, automotive, heavy machinery, mold making and precision tooling.
History
From Local Steel Workshop to Global Steel Supplier
Keyspark Steel has grown step by step through product expansion, technology upgrades and stronger export service.
2005
Initial Start
Keyspark Steel was established with a small workshop, basic smelting equipment and skilled workers. 4Cr13 became a core product as the team built early steelmaking and quality control experience.
2010
Product Expansion
The workshop expanded with forging equipment and improved smelting tools. Keyspark launched 1.2316 and S136 while expanding products and customers.
2015
Technological Upgrade
The factory introduced advanced self-steelmaking equipment, professional heat treatment furnaces and upgraded forging machines to meet DIN, AISI and GB requirements.
2020
Global Layout
Keyspark built a modern factory, upgraded intelligent steelmaking, forging and heat treatment equipment, and strengthened global export service.
2025
New Chapter
With a larger standard factory, advanced manufacturing equipment and an experienced technical team, Keyspark continues to increase R&D and customized support for global customers.
Integrated process
Steelmaking, Casting, Forging, Heat Treatment and Finishing
We control the manufacturing route from raw material and molten steel to forged blocks, bars, plates, heat treated steel and finished dimensions.
- Steelmaking
- Casting
- Forging
- Heat Treatment
- Grinding
- Cutting
Steelmaking
EAF, LF, VD and ESR routes help improve steel purity, composition control and internal quality.
Casting
Controlled casting creates reliable billets and ingots for forging, rolling and machining steps.
Forging
Forging refines grain structure and improves mechanical properties for large-section steel.
Finishing
Cutting, milling, turning, grinding, straightening and chamfering are available for custom supply.
Steelmaking
Large-Section Forging for Strength and Internal Quality
Keyspark Steel produces mold steel, alloy steel and high-speed steel for global export, complying with DIN, AISI and GB standards.
EAF Melting
LF Refining
VD Degassing
ESR Remelting
Casting
Controlled Casting for Reliable Billets and Ingots
Consistent casting lays a solid foundation for mold steel, alloy steel and high-speed steel. Cast billets and ingots are prepared for forging, rolling, heat treatment or machining.
- Stable chemical composition
- Controlled billet and ingot quality
- Prepared for forging or rolling
- Suitable for custom steel orders
Forging
Large-Section Forging for Strength and Internal Quality
Forging helps refine grain structure, reduce internal defects and improve mechanical properties for mold steel, alloy steel and tool steel blocks, bars and plates.
Forging Plant
Forging Hammer
Drawing Out
Upsetting
Products and standards
Special Steel Product Coverage
Keyspark Steel supplies core product categories and equivalent grades for global buyers, with technical support for material selection and custom processing.
Plastic Mold Steel
1.2316, 1.2085, P20, 1.2311, 1.2312, 1.2738 and corrosion-resistant mold steels.
Hot Work Tool Steel
H13, H11, H12, 1.2714, S7 and steel grades for die casting, extrusion and hot forging dies.
Cold Work Tool Steel
D2, DC53, SKD11, Cr12, Cr12MoV and steel for stamping, cutting and wear tooling.
Alloy Steel
4140, 42CrMo, 4340, 40CrNiMo, 5140, 40Cr and Q345 steel for machinery components.
High Speed Steel
M2, M4, T1 and high-wear steel materials for drills, cutters, punches and tools.
Stainless Steel
304, 316, 420, 440C and corrosion-resistant grades for precision and harsh environments.
Quality assurance
Inspection and Documentation Before Shipment
Steel quality directly affects mold life, machining stability and final product performance. Keyspark Steel provides inspection and documentation for special steel orders.
- Chemical composition analysis
- Hardness testing
- Ultrasonic testing
- Surface defect inspection
- Dimensional inspection
- Mechanical property testing
- Material Test Certificate / MTC
- DIN / AISI / GB / JIS / ASTM / EN comparison
Global export service
Steel Supply for Aerospace, Automotive, Machinery and Tooling
- Aerospace and machinery
- Automotive shafts and gears
- Plastic molds and die casting molds
- Cutting tools, punches and dies
- Marine and corrosion-resistant parts
- Custom-machined steel supply
Work with Keyspark Steel
Need a Reliable Special Steel Manufacturer in China?
Send your steel grade, size, quantity and technical requirements. Keyspark Steel will help you confirm material selection, processing solution, price and delivery time.
Email: Sales@keysparksteel.comWhatsApp: +86 150 2405 6480