Precipitation hardening stainless steel combining exceptional strength with good corrosion resistance. Ideal for high-performance applications requiring both mechanical properties and environmental durability.
Stainless Steel 17-4 PH is a precipitation hardening martensitic stainless steel that offers an exceptional combination of high strength, good corrosion resistance, and excellent mechanical properties. After heat treatment (H900 condition), it achieves tensile strengths exceeding 1340 MPa while maintaining good ductility. This material is widely used in aerospace, medical, and high-performance applications where both strength and corrosion resistance are critical.
Stainless Steel 17-4 PH combines exceptional strength-to-weight ratio and good corrosion resistance in mild environments, delivering heat treatable for optimized properties for demanding applications. From rapid prototyping to production runs, teams rely on Stainless Steel 17-4 PH 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 - 0.06 mm
Resolution
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Manufactured in Forge Labs' North American production centers with serialized traceability for Stainless Steel 17-4 PH.
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Stainless Steel 17-4 PH (precipitation hardening) through EOS DMLS delivers exceptional strength up to 1200 MPa after heat treatment while maintaining good corrosion resistance. This versatile material bridges the gap between austenitic and tool steels.
The DMLS process produces fully martensitic microstructure that responds predictably to standard H900-H1150 heat treatments. Engineers can tailor properties from maximum strength to enhanced toughness based on application requirements.
Forge Labs offers complete heat treatment options including solution annealing and aging to achieve desired properties. Our validated processes ensure consistent hardness and strength throughout complex geometries.
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From aerospace actuators to injection mold tooling, DMLS 17-4 PH enables high-strength components with moderate corrosion resistance. Discover industrial applications.
DMLS 17-4 PH enables high-strength aerospace components that require moderate corrosion resistance. The material's heat treatability allows property optimization for specific applications.
Key Applications
Performance Data
Achieves 1200 MPa UTS (H900) with 10% elongation, meeting AMS 5643 requirements for flight hardware applications.
Toolmakers leverage DMLS 17-4 PH for conformal cooled injection mold inserts that survive millions of cycles. The material's hardness resists wear while maintaining dimensional stability.
Key Applications
Performance Data
Achieves 40 HRC hardness with conformal cooling reducing cycle time 30% while surviving 1M+ shots with engineering plastics.
Oil and gas applications use DMLS 17-4 PH for high-strength components with H2S resistance. The material withstands downhole conditions while maintaining structural integrity.
Key Applications
Performance Data
Maintains 900 MPa yield strength at 150°C with NACE MR0175 compliance for sour service applications.
Industrial manufacturers use DMLS 17-4 PH for wear-resistant components requiring high strength. The material's versatility enables various heat treatment conditions for optimized performance.
Key Applications
Performance Data
Surface hardness to 45 HRC with core toughness, surviving 10M cycles in rotating equipment applications.
DMLS enables significant weight reduction compared to traditionally machined parts
Weight Optimization
High-strength 17-4 PH stainless steel components
High-Strength Applications
Topology-optimized 17-4 PH component demonstrating material efficiency
Topology Optimization
Stainless Steel 17-4 PH delivers dependable strength and impact resistance for High-precision tooling and mechanical components and Aerospace structural components and brackets, helping teams move from prototype to production with confidence.
Mechanical Properties
1340 MPa
Stainless Steel 17-4 PH records Tensile Strength (H900) at 1340 MPa, reinforcing its mechanical properties story.
Mechanical Properties
886 MPa
Stainless Steel 17-4 PH records Tensile Strength (As-Built) at 886 MPa, reinforcing its mechanical properties story.
Mechanical Properties
1235 MPa
Stainless Steel 17-4 PH records Yield Strength (H900) at 1235 MPa, reinforcing its mechanical properties story.
Stainless Steel 17-4 PH combines Exceptional strength-to-weight ratio and Good corrosion resistance in mild environments to support High-precision tooling and mechanical components and Aerospace structural components and brackets that demand production-ready durability.
| Measurement | Stainless Steel 17-4 PHBase | Standard |
|---|---|---|
| Tensile Strength (H900) | 1340 MPa | — |
| Tensile Strength (As-Built) | 886 MPa | — |
| Yield Strength (H900) | 1235 MPa | — |
| Yield Strength (As-Built) | 861 MPa | — |
| Flexural Strength | 1450 MPa | — |
| Elongation at Break (H900) | 13.5 % | — |
| Elongation at Break (As-Built) | 20 % | — |
| Hardness (H900) | 42 HRC | — |
| Hardness (As-Built) | 24 HRC | — |
Stainless Steel 17-4 PH delivers dependable strength and impact resistance for High-precision tooling and mechanical components and Aerospace structural components and brackets, helping teams move from prototype to production with confidence.
Stainless Steel 17-4 PH 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 High-precision tooling and mechanical components, Aerospace structural components and brackets, and High-performance automotive parts, providing long-term durability in demanding environments. Stainless Steel 17-4 PH 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 Aerospace, Automotive, and Marine. 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.
Stainless Steel 17-4 PH combines Exceptional strength-to-weight ratio and Good corrosion resistance in mild environments to support High-precision tooling and mechanical components and Aerospace structural components and brackets that demand production-ready durability.
Key metric
1340 MPa
Key metric
886 MPa
Key metric
1235 MPa
Detailed mechanical measurements live in the performance dashboard above. Switch tabs to compare against other materials instantly.
Stainless Steel 17-4 PH offers consistent density and surface quality so critical features hold tolerances and downstream finishing remains predictable.
Stainless Steel 17-4 PH exhibits a density of 7.79 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 High-precision tooling and mechanical components, Aerospace structural components and brackets, and High-performance automotive parts. The material's inherent characteristics minimize warpage and maintain tight tolerances throughout the part lifecycle.
For Aerospace, Automotive, and Marine, these physical attributes translate to reliable production outcomes with minimal post-processing requirements, ensuring parts meet specifications straight from the build platform.
Stainless Steel 17-4 PH delivers 7.79 g/cm³ density so assemblies fit and finish without secondary rework.
Key metric
7.79 g/cm³
Key metric
99.5 %
Key metric
15.0-17.5 %
Detailed physical properties measurements live in the performance dashboard above. Switch tabs to compare against other materials instantly.
Stainless Steel 17-4 PH maintains dimensional stability through temperature swings, making it a reliable option for Aerospace and Automotive programs that see repeated thermal cycling.
Stainless Steel 17-4 PH 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 High-precision tooling and mechanical components, Aerospace structural components and brackets, and High-performance automotive parts that experience temperature fluctuations. Its ability to withstand thermal cycling without degradation ensures long-term reliability in Aerospace, Automotive, and Marine.
With an operating temperature range up to 315 °C, Stainless Steel 17-4 PH provides engineers with confidence when designing parts for thermally demanding applications, from under-hood automotive components to industrial equipment exposed to heat sources.
Stainless Steel 17-4 PH maintains geometry with a Service Temperature of 315 °C, protecting dimensional integrity during heat cycling.
Key metric
1426-1482 °C
Key metric
315 °C
Key metric
10.4 ×10⁻⁶/K
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 Stainless Steel 17-4 PH.
Access the most recent datasheet and supporting documentation maintained by our engineering team.
Explore printable geometry recommendations, wall thickness tips, and finishing playbooks for DMLS.
View DMLS design guideKeep your quality packet current with pre-approved certifications.
Advanced Manufacturing
Stainless Steel 17-4 PH is manufactured using Direct Metal Laser Sintering (DMLS) technology, providing unmatched strength and precision for mission-critical applications.
Stainless Steel 17-4 PH 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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