EOS Maraging Steel MS1 is a premium grade tool steel with 18% nickel content, designed for applications requiring exceptional strength, hardness, and dimensional stability. This material achieves superior mechanical properties through precipitation hardening, making it ideal for injection molding tools, mechanical engineering components, and precision manufacturing applications.
Maraging Steel MS1 is a ultra-high strength steel with exceptional hardness and dimensional stability achieved through precipitation hardening. With its 18% nickel content and low carbon composition, it delivers superior mechanical properties ideal for precision tooling applications. The material can be easily machined in the as-built state and heat treated to achieve hardness levels exceeding 54 HRC, making it perfect for injection molding tools, mechanical engineering components, and high-performance manufacturing applications.
Maraging Steel MS1 combines exceptional hardness up to 54+ hrc after heat treatment and superior dimensional stability during aging process, delivering excellent machinability in both as-built and heat-treated states for demanding applications. From rapid prototyping to production runs, teams rely on Maraging Steel MS1 to maintain tight tolerances while reducing assembly complexity through consolidated part designs.
EOS metal systems define the industry benchmark for direct metal laser sintering, incorporating precision optics with f-theta lenses that maintain consistent beam quality across the entire build platform. Their closed-loop powder handling and inert atmosphere control achieve oxygen levels below 0.1%, critical for reactive materials like titanium and aluminum alloys. The EOSTATE monitoring suite provides real-time melt pool analysis and automatic exposure parameter correction, ensuring aerospace-grade quality with full documentation for every layer of every part.
Build Volume
250 × 250 × 325 mm
Max part size
Lead Time
8-12 business days
Standard production
Layer Height
0.02 - 0.08 mm
Resolution
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Manufactured in Forge Labs' North American production centers with serialized traceability for Maraging Steel MS1.
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Maraging Steel MS1 through EOS DMLS achieves exceptional strength up to 2000 MPa after aging while maintaining excellent toughness. This ultra-high-strength steel enables tooling and components that push the boundaries of mechanical performance.
The material's unique precipitation hardening mechanism delivers uniform hardness up to 55 HRC throughout complex geometries without distortion. Unlike traditional tool steels, maraging steel hardens without carbon, preventing brittleness.
Forge Labs' controlled aging process at 490°C for 6 hours achieves consistent properties with minimal dimensional change (<0.05%). Our machining capabilities enable hybrid approaches for critical tolerances.
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From conformal cooled die inserts to aerospace tooling, DMLS Maraging Steel enables extreme performance. Explore applications demanding ultimate strength.
DMLS Maraging Steel revolutionizes injection molding and die casting with conformal cooling and extreme durability. The material survives millions of cycles with abrasive plastics.
Key Applications
Performance Data
Achieves 54 HRC with conformal cooling enabling 40% cycle reduction while surviving 5M+ shots with 30% glass-filled plastics.
Aerospace manufacturers use DMLS Maraging Steel for high-strength tooling and structural components. The material's toughness prevents catastrophic failure in critical applications.
Key Applications
Performance Data
Ultimate strength 1950 MPa with KIC fracture toughness 75 MPa√m, preventing brittle failure in safety-critical components.
Racing teams leverage DMLS Maraging Steel for ultra-high-strength components that survive extreme loads. The material enables weight reduction in highly stressed parts.
Key Applications
Performance Data
Fatigue strength 900 MPa at 10^7 cycles with 50% weight saving versus traditional steel in topology-optimized designs.
Heavy industry uses DMLS Maraging Steel for components requiring extreme strength and wear resistance. The material withstands shock loads and abrasive conditions.
Key Applications
Performance Data
Maintains 1800 MPa strength after 10,000 hours at 400°C with superior abrasion resistance versus conventional steels.
Complex injection molding tool insert with conformal cooling channels
Injection Molding Tools
High-strength maraging steel tooling applications
Tooling Applications
Topology-optimized maraging steel component for weight reduction
Precision Engineering
Maraging Steel MS1 delivers dependable strength and impact resistance for Injection molding tools and inserts and Precision cutting tools and dies, helping teams move from prototype to production with confidence.
Mechanical Properties
2080 MPa
Maraging Steel MS1 records Tensile Strength (Heat Treated) at 2080 MPa, reinforcing its mechanical properties story.
Mechanical Properties
2000 MPa
Maraging Steel MS1 records Yield Strength (Heat Treated) at 2000 MPa, reinforcing its mechanical properties story.
Mechanical Properties
2200 MPa
Maraging Steel MS1 records Flexural Strength at 2200 MPa, reinforcing its mechanical properties story.
Maraging Steel MS1 combines Exceptional hardness up to 54+ HRC after heat treatment and Superior dimensional stability during aging process to support Injection molding tools and inserts and Precision cutting tools and dies that demand production-ready durability.
| Measurement | Maraging Steel MS1Base | Standard |
|---|---|---|
| Tensile Strength (Heat Treated) | 2080 MPa | — |
| Yield Strength (Heat Treated) | 2000 MPa | — |
| Flexural Strength | 2200 MPa | — |
| Elongation at Break | 4 % | — |
| Hardness (As-Built) | 32-37 HRC | — |
| Hardness (Heat Treated) | 54+ HRC | — |
| Elastic Modulus | 190 GPa | — |
| Impact Strength | 25 J | — |
Maraging Steel MS1 delivers dependable strength and impact resistance for Injection molding tools and inserts and Precision cutting tools and dies, helping teams move from prototype to production with confidence.
Maraging Steel MS1 delivers exceptional mechanical performance with excellent strength characteristics, effectively handling demanding load conditions. Its balanced mechanical profile allows it to maintain structural integrity while preventing brittleness in critical applications.
These qualities make it well-suited for Injection molding tools and inserts, Precision cutting tools and dies, and Aerospace manufacturing tooling, providing long-term durability in demanding environments. Maraging Steel MS1 maintains dimensional stability over time, ensuring consistent performance across temperature and stress variations.
This makes it a reliable choice for applications requiring precise geometries and tight tolerances across Tooling & Manufacturing, Aerospace, and Automotive. Its versatility and durability allow it to perform consistently across a wide range of mechanical applications, ensuring parts maintain their integrity under repetitive stress and environmental conditions.
Maraging Steel MS1 combines Exceptional hardness up to 54+ HRC after heat treatment and Superior dimensional stability during aging process to support Injection molding tools and inserts and Precision cutting tools and dies that demand production-ready durability.
Key metric
2080 MPa
Key metric
2000 MPa
Key metric
2200 MPa
Detailed mechanical measurements live in the performance dashboard above. Switch tabs to compare against other materials instantly.
Maraging Steel MS1 offers consistent density and surface quality so critical features hold tolerances and downstream finishing remains predictable.
Maraging Steel MS1 exhibits a density of 8.1 g/cm³ that contributes to lightweight yet durable parts. Its low moisture absorption ensures dimensional stability in varying environmental conditions.
These physical properties enable consistent part quality and predictable performance across Injection molding tools and inserts, Precision cutting tools and dies, and Aerospace manufacturing tooling. The material's inherent characteristics minimize warpage and maintain tight tolerances throughout the part lifecycle.
For Tooling & Manufacturing, Aerospace, and Automotive, these physical attributes translate to reliable production outcomes with minimal post-processing requirements, ensuring parts meet specifications straight from the build platform.
Maraging Steel MS1 delivers 8.1 g/cm³ density and Ra 6-10 μm surface finish so assemblies fit and finish without secondary rework.
Key metric
8.1 g/cm³
Key metric
Ra 6-10 μm
Key metric
18Ni300 Grade
Detailed physical properties measurements live in the performance dashboard above. Switch tabs to compare against other materials instantly.
Maraging Steel MS1 maintains dimensional stability through temperature swings, making it a reliable option for Tooling & Manufacturing and Aerospace programs that see repeated thermal cycling.
Maraging Steel MS1 demonstrates excellent thermal stability with robust heat resistance, enabling it to maintain dimensional accuracy in elevated temperature environments. This thermal performance ensures parts retain their shape and mechanical properties even under thermal stress.
The material's thermal characteristics make it ideal for Injection molding tools and inserts, Precision cutting tools and dies, and Aerospace manufacturing tooling that experience temperature fluctuations. Its ability to withstand thermal cycling without degradation ensures long-term reliability in Tooling & Manufacturing, Aerospace, and Automotive.
With an operating temperature range up to 400 °C, Maraging Steel MS1 provides engineers with confidence when designing parts for thermally demanding applications, from under-hood automotive components to industrial equipment exposed to heat sources.
Maraging Steel MS1 maintains geometry with a Service Temperature of 400 °C, protecting dimensional integrity during heat cycling.
Key metric
1413 °C
Key metric
400 °C
Key metric
490 °C
Detailed thermal properties measurements live in the performance dashboard above. Switch tabs to compare against other materials instantly.
Equip your team with certification packs, design guides, and spec sheets tailored to Maraging Steel MS1.
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Advanced Manufacturing
Maraging Steel MS1 is manufactured using Direct Metal Laser Sintering (DMLS) technology, providing unmatched strength and precision for mission-critical applications.
Maraging Steel MS1 is printed on EOS M-series production systems with real-time melt pool monitoring, guaranteeing aerospace-grade density and fatigue performance for tooling and end-use components.
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