Premier Tool Steel Investment Casting Manufacturer
As a leading tool steel investment casting supplier in China, we specialize in producing high-quality castings in various tool steel grades. Our precision-crafted components serve diverse industries, including automotive, mining, construction, food processing, and more. Whether your project demands standard or custom tool steel castings, our team is equipped to deliver exceptional solutions tailored to your specifications.
China Metal Castings is an ISO 9001:2008 and ISO/TS 16949:2009 certified foundry, recognized for excellence in tool steel casting manufacturing. With extensive experience in hundreds of successful projects, we offer comprehensive engineering support, material expertise, and reliable production capabilities to meet your most demanding requirements.
Tool Steel Investment Casting: Strength and Precision
Tool steel is ideal for investment castings operating in high-temperature, non-corrosive environments. Its alloy composition—including molybdenum, carbon, manganese, silicon, tungsten, and vanadium—ensures exceptional durability and heat resistance while maintaining structural integrity.
At China Metal Castings, we produce precision tool steel investment castings in grades such as A2, D2, O1, and more, with tight tolerances of ±0.005″ per inch. Our in-house secondary machining, heat treatment, and finishing services allow us to deliver components in various hardness levels—from fully annealed (RC 20) to hardened and tempered (up to RC 60)—ensuring optimal performance for your application.
Our Tool Steel Material Portfolio
Grade | Key Properties | Max Hardness (HRC) |
---|---|---|
O1 | High dimensional stability, excellent low-temp hardening | 65 |
W1 | Water-hardened, superior wear resistance & toughness | 68 |
A2 | High heat/wear resistance, minimal distortion | 63 |
D2 | Exceptional toughness & wear resistance (challenging to machine) | 65 |
S7 | Shock-resistant with high strength & ductility | 61 |
P20 | Ideal for plastic molds & die-casting components | 32 |
H13 | Excellent thermal fatigue resistance & hardenability | 54 |
M2 | High-speed steel with superior abrasion resistance | 65 |
How Are Tool Steel Investment Castings Manufactured?

Mold Development
We utilize advanced spectrometers to verify the precise mechanical properties of metal alloys, ensuring optimal performance in every casting.

Wax Pattern Production
Specialized wax injection machines extrude medium-temperature wax into precision molds, forming high-quality wax replicas of the final product.

De-burring the Wax Pattern
Each wax model undergoes meticulous inspection and precision trimming to guarantee flawless dimensional accuracy before further processing.

Pattern Assembly
Following engineered casting designs, individual wax patterns are carefully welded onto central wax runners to create complete casting clusters.

Shell Formation
A multi-layer ceramic coating process builds a heat-resistant shell around each wax assembly through successive dipping and stuccoing applications.

Shell Curing
The ceramic-coated clusters undergo controlled heating in industrial furnaces to achieve optimal strength and thermal stability.

Pouring
Molten steel is precision-poured into the preheated ceramic molds under carefully controlled conditions to ensure complete cavity filling.

Casting Extraction
After solidification, the cast components are separated from the shell structure and prepared for final finishing operations.
Tool Steel Investment Castings Services
Investment Casting Services
Choosing the optimal manufacturing process for your component is crucial. Investment casting delivers exceptional value when you require intricate geometries with tight dimensional tolerances.
This time-tested technique offers significant economic advantages by consolidating multiple production steps into a streamlined operation, reducing both lead times and manufacturing costs. The process consistently yields components with superior surface finishes that faithfully reproduce mold details, while simultaneously reducing material flaws to ensure outstanding product integrity.


CNC Machining Services
We provide complete precision CNC machining solutions through our advanced manufacturing capabilities, including CNC milling, turning, boring, grinding, drilling, EDM wire cutting, and other specialized processes. Through continuous technological upgrades, our facility now operates:
- 14 high-precision 4-axis CNC machining centers
- CNC gantry milling and boring machines
- CNC horizontal and vertical lathes
- CNC honing equipment
- CNC deep-hole internal grinding systems
- Numerous conventional machining stations
This modern equipment portfolio enables us to handle complex components with exceptional accuracy and efficiency.
Surface Treatment Services
To optimize component performance, durability, and longevity, we provide comprehensive surface enhancement solutions including:
● Shot blasting
● Sand blasting
● Vibratory finishing
● Electro-galvanizing
● Pickling & passivation
● Electro-polishing
● Phosphating
● Black oxide coating
● Brush finishing
● Mirror polishing
Our advanced surface treatments improve corrosion resistance, fatigue strength, and aesthetic quality for superior product performance.

Industries We Serve
We provide investment casting solutions in tool steel, stainless steel, aluminum, and other alloys for industries such as:
- Automotive & Aerospace
- Mining & Heavy Equipment
- Construction & Infrastructure
- Food Processing & Packaging
- Plastic Injection Molding
Start Your Custom Tool Steel Project
As a trusted OEM tool steel casting supplier, we manufacture:
- W-grade (water-hardening)
- O-grade (oil-hardening)
- A-grade (air-hardening)
- D-grade (high-carbon, high-chromium)
- S-grade (shock-resistant)
- H-grade (hot-work)
Clients choose China Metal Castings for our:
✔ Uncompromising quality control
✔ On-time delivery guarantee
✔ End-to-end technical support
Request a Free Quote Today!
Contact our foundry to discuss your project needs and receive a competitive quotation.