
H13 Tool Steel: The Industrial Standard, Now Production-Ready on STLR Series.
H13 Tool steel has long been the material of choice for die casting, forging, and stamping tooling — and one of additive manufacturing’s most stubborn challenges. High hardenability, cracking tendency during rapid solidification, and extreme sensitivity to process conditions have kept most AM players away. amace cracked it. With a validated, production-proven process on the STLR platform, parts benchmark directly against wrought H13 on density, hardness, and mechanical properties.
The Business Case: Real-World Results

Our customers are no longer asking if it works—they are measuring how much it saves. In active production environments, the STLR machines are delivering
- 50% Faster Speed to Floor: Lead times for critical components like punches have been slashed by half compared to conventional machining.
- 2x Tool Longevity: By optimizing thermal management and material structure, tool life is increasing by 1.5x to 2x.
- Operational Simplicity: We have significantly reduced the process sequence, cutting down on complex machining steps and reducing manpower dependency.
These aren’t projected gains — they are outcomes being reported from production floors running STLR machines 24 hours a day, 7 days a week.
Rethinking Tooling: Hybrid & Repair

The STLR platform is designed specifically for the modern tool room, focusing on Hybrid Manufacturing and Die Repair
- Strategic Hybrid Builds: Print H13 Tool Steel inserts directly onto forged bulk bodies. This allows you to retain the core toughness traditional forging while adding LPBF-enabled cooling efficiency and geometric complexity where it matters most.
- Die Repair & Life Extension: Don’t scrap worn dies. Use LPBF to reconstruct geometries, extending the ROI of your existing assets.
The Benchmarks: How STLR Fares
When compared to conventional forged H13 Tool Steel, the STLR platform delivers
- Density: >99.5%
- Thermal Efficiency: 15–40% reduction in cycle times via conformal cooling.
- Hardness: Fully tuneable (48-54 HRC) post-heat treatment.
From "Printable" to "Productionized"
amace solutions has developed a proprietary ecosystem on the STLR machine that eliminates the “guesswork” of H13 tool steel. No more cracking, no more failed builds—just high-density, high-toughness steel ready for the shop floor. We’ve shifted the bottleneck from the machine’s capability to your design’s imagination.
Is your production line ready for the H13 evolution?
Let’s connect to see how the STLR platform can productionize your tooling workflow.



