3D Systems,LaserForm® 17-4PH (A) H900 Stainless Steel Rod/Bar Material

3D Systems LaserForm® 17-4PH (A) H900 Stainless Steel Rod Material Product Information -:- For detailed product information, please contact sales. -: 3D Systems LaserForm® 17-4PH (A) H900 Stainless Steel Rod Material Synonyms -:- For detailed product information, please contact sales. -:

3D Systems LaserForm® 17-4PH (A) H900 Stainless Steel Material Product Information -:- For detailed product information, please contact sales. -: # **3D Systems LaserForm® 17-4PH (A) H900 Stainless Steel Material** ## **Product Overview** **3D Systems LaserForm® 17-4PH (A) H900** is a high-performance, precipitation-hardening stainless steel material specifically engineered for Direct Metal Printing (DMP) technology, supplied in the **H900 heat-treated condition**. This material represents the pinnacle of strength-to-weight ratio in the 17-4PH alloy system for additive manufacturing, achieving **ultimate tensile strengths exceeding 1,300 MPa** while maintaining practical toughness and excellent corrosion resistance. The "(A)" designation indicates proprietary alloy modifications optimized for laser powder bed fusion, while "H900" specifies the peak-aged condition that delivers maximum hardness and strength. ## **Technology Platform Compatibility** | **Parameter** | **Specification** | |---------------|-------------------| | **Primary Process** | Direct Metal Printing (DMP) / Laser Powder Bed Fusion (LPBF) | | **Compatible Systems** | 3D Systems ProX DMP 200/300, DMP Factory 350/500/850 | | **Standard Layer Thickness** | 30 μm (fine detail), 40 μm (standard), 60 μm (high productivity) | | **Build Atmosphere** | High-purity argon (<20 ppm O₂) | | **Build Platform Heating** | 80-120°C (recommended) | | **Process Control Software** | 3D Systems 3DXpert® with material-specific parameters | ## **Material Specifications** ### **Chemical Composition (wt%, Powder Analysis)** | Element | Target Range | Metallurgical Function in AM-H900 | |---------|--------------|-----------------------------------| | **Chromium (Cr)** | 15.0-16.0 | Martensite formation, corrosion resistance | | **Nickel (Ni)** | 4.0-4.5 | Austenite retention control, toughness | | **Copper (Cu)** | 3.2-3.6 | **Primary precipitation strengthening** | | **Manganese (Mn)** | 0.2-0.6 | Sulfur control, solid solution strengthening | | **Silicon (Si)** | 0.3-0.7 | Deoxidizer, fluidity enhancement | | **Carbon (C)** | ≤0.03 | **Ultra-low for improved aging response** | | **Niobium (Nb)** | 0.25-0.35 | Grain refinement, secondary carbide formation | | **Nitrogen (N)** | 0.02-0.05 | Interstitial strengthening | | **Phosphorus (P)** | ≤0.020 | Impurity control | | **Sulfur (S)** | ≤0.008 | Impurity control | | **Iron (Fe)** | Balance | Matrix | *Specially balanced for maximum H900 aging response after additive manufacturing.* ### **Powder Characteristics (Virgin Powder)** | Property | Specification | Test Method | |----------|---------------|-------------| | **Particle Size Distribution** | D10: 20-24 μm, D50: 32-36 μm, D90: 45-52 μm | ASTM B822 | | **Particle Morphology** | >98% spherical, minimal satellites | SEM Analysis | | **Apparent Density** | 4.0-4.2 g/cm³ | ASTM B212 | | **Tap Density** | 4.8-5.0 g/cm³ | ASTM B527 | | **Flowability** | 24-30 s/50g | Hall Flowmeter | | **Oxygen Content** | <250 ppm | Inert gas fusion | | **Moisture Content** | <0.01% | Karl Fischer | | **Recyclability** | >75% after 5 cycles with refresh | 3D Systems Protocol | ## **Mechanical Properties in H900 Condition** *Parts are built, solution treated, and aged to H900 specification* ### **Tensile Properties (ASTM E8/E8M, Room Temperature)** | Build Orientation | Ultimate Tensile Strength | Yield Strength (0.2%) | Elongation | Reduction of Area | |-------------------|---------------------------|-----------------------|------------|-------------------| | **Horizontal (XY)** | 1340-1420 MPa | 1240-1300 MPa | 8-12% | 30-40% | | **Vertical (Z)** | 1310-1380 MPa | 1210-1270 MPa | 7-10% | 25-35% | | **45° Diagonal** | 1320-1400 MPa | 1220-1290 MPa | 8-11% | 28-38% | *Note: H900 condition achieved through full solution treatment + aging at 480°C (900°F)* ### **Comprehensive Mechanical Properties** | Property | H900 Condition Value | Test Standard | Notes | |----------|----------------------|---------------|-------| | **Hardness** | 40-45 HRC (typical 43 HRC) | ASTM E18 | Uniform throughout | | **Impact Toughness** | 12-18 J | ASTM E23 | Charpy V-notch, 22°C | | **Fatigue Strength** | 450-500 MPa | ASTM E466 | R=-1, 10⁷ cycles | | **Young's Modulus** | 190-200 GPa | ASTM E111 | | | **Shear Strength** | 850-920 MPa | ASTM B831 | | | **Compressive Strength** | 1550-1650 MPa | ASTM E9 | | | **Bearing Strength** | 1950-2100 MPa | ASTM E238 | | | **Fracture Toughness (KIC)** | 50-65 MPa√m | ASTM E399 | CT specimens | ## **Physical Properties (H900 Condition)** | Property | Value | Conditions/Notes | |----------|-------|------------------| | **Density** | 7.78 g/cm³ | 100% dense per ASTM B962 | | **Thermal Conductivity** | 19.5 W/m·K | 20°C | | **Coefficient of Thermal Expansion** | 10.9 × 10⁻⁶/K | 20-200°C | | **Specific Heat Capacity** | 460 J/kg·K | 20°C | | **Electrical Resistivity** | 0.78 μΩ·m | 20°C | | **Magnetic Permeability** | Ferromagnetic | μ ≈ 60-80 | | **Melting Range** | 1400-1440°C | Solidus-Liquidus | ## **Standard Heat Treatment Sequence** ### **Required Post-Process Heat Treatment** 1. **Solution Treatment** - Temperature: 1040°C ± 10°C (1905°F) - Time: 30 minutes per 25 mm thickness (minimum 30 min) - Atmosphere: Vacuum or inert gas - Cooling: Rapid argon gas quench or oil quench 2. **H900 Aging Treatment** - Temperature: 480°C ± 5°C (900°F) - Time: 1 hour per 25 mm thickness (minimum 1 hour, typically 4 hours) - Atmosphere: Air or inert - Cooling: Air cool to room temperature 3. **Optional Stress Relief** (before machining) - Temperature: 550°C ± 10°C (1020°F) - Time: 2 hours - Cooling: Furnace cool to 300°C, then air cool ## **Microstructural Characteristics (H900)** - **Matrix:** Fine lath martensite with high dislocation density - **Precipitates:** Coherent Cu-rich ε-phase (2-10 nm), NbC carbides - **Prior Austenite Grain Size:** ASTM 10-12 (fine) - **Inclusion Content:** <0.005% area fraction - **Porosity:** <0.1% (typically 0.02-0.05%) - **Texture:** Mild <100> fiber texture along build direction ## **Corrosion Performance (H900 Condition)** | Test | Performance | Test Method | Notes | |------|-------------|-------------|-------| | **Salt Spray** | 400-500 hours to red rust | ASTM B117 | Unpolished surface | | **Critical Pitting Temperature** | 15-20°C | ASTM G150 | 1M NaCl | | **Intergranular Corrosion** | Pass | ASTM A262 Practice E | | | **Stress Corrosion Cracking** | Threshold: 200 MPa | ASTM G39 | 3.5% NaCl | | **Galvanic Series** | Noble to 304L, active to Ti | ASTM G82 | | ## **Design for Additive Manufacturing Guidelines** ### **Geometric Capabilities** - **Minimum Wall Thickness:** 0.5 mm (unsupported), 0.4 mm (supported) - **Minimum Feature Size:** 0.25 mm - **Unsupported Overhang:** 45° (recommended minimum) - **Support Structure:** Required below 45°, lattice or block supports - **Hole Diameter:** 0.8 mm (through), 1.0 mm (blind) - **Escape Holes:** Minimum 4 mm diameter for powder removal ### **Build Strategy Recommendations** - **Optimal Orientation:** Critical surfaces in XY plane for best finish - **Thermal Stress Management:** Progressive cross-section changes (<3:1 ratio) - **Residual Stress Mitigation:** Regular scan rotation (67° recommended) - **Support Design:** 1.0 mm minimum contact diameter for H900 strength ## **Primary Target Applications** ### **Aerospace & Defense** - **Structural Brackets:** Engine mounts, airframe attachments, UAV hardpoints - **Flight Control Components:** Actuator housings, linkage fittings, hinge parts - **Missile & Ordinance:** Guidance system housings, fins, launch tube components - **Satellite Mechanisms:** Deployable element fittings, instrument mounts ### **High-Performance Tooling** - **Injection Mold Inserts:** For glass-filled polymers, abrasive materials - **Die Casting Tooling:** Cores, pins, ejectors for aluminum/magnesium - **Metal Forming Dies:** Punches, dies for high-strength materials - **Composite Tooling:** High-pressure curing tools, trim fixtures ### **Industrial & Energy** - **Turbomachinery:** Compressor stators, turbine housings - **Valve Components:** High-pressure valve bodies, stems, seats - **Pump Components:** Impellers, diffusers, wear rings - **Oil & Gas:** Downhole tool components, measurement while drilling parts ### **Medical & Dental (Non-Implant)** - **Surgical Instruments:** Forceps, retractors, specialized tools - **Dental:** Crown/bridge frameworks, orthodontic appliances - **Medical Devices:** Handpiece housings, equipment components ## **Post-Processing Considerations** ### **Machining (Post-H900)** - **Tool Material:** Carbide or CBN recommended - **Cutting Speed:** 25-35 m/min (turning) - **Feed Rate:** 0.10-0.20 mm/rev - **Depth of Cut:** Light to moderate (0.5-2.0 mm) - **Coolant:** Required for heat dissipation ### **Surface Enhancement** - **Grinding:** Achieves Ra < 0.4 μm with proper wheels - **Polishing:** Mirror finish (Ra < 0.05 μm) achievable - **Electropolishing:** Removes 20-100 μm, improves corrosion - **Shot Peening:** Almen 0.006-0.010A for fatigue improvement ### **Joining & Assembly** - **Welding:** Not recommended in H900 condition - **Adhesive Bonding:** Excellent with proper surface prep - **Mechanical Fastening:** Standard practices applicable - **Press/Slip Fits:** Consider differential thermal expansion ## **Quality Standards & Certifications** | Standard | Applicability | Notes | |----------|---------------|-------| | **ASTM F3184** | Material Specification | 17-4PH for Additive Manufacturing | | **AMS 5604G** | Aerospace Material | Supplementary testing required | | **ASTM F3302** | Process Standard | PBF-LB process requirements | | **ISO/ASTM 52904** | Additive Manufacturing | General requirements | | **NADCAP** | Aerospace Accreditation | Compliant with testing requirements | | **ISO 9001:2015** | Quality Management | Certified production | ## **Storage & Handling** ### **Powder Management** - **Storage Life:** 18 months in sealed, argon-filled containers - **Storage Conditions:** <25% relative humidity, 15-25°C - **Handling Environment:** Inert atmosphere glove box recommended - **Safety:** NFPA 484 compliant handling procedures ### **Finished Parts** - **Cleaning:** Ultrasonic cleaning in solvent recommended - **Passivation:** Nitric acid passivation per ASTM A967 optional - **Long-term Storage:** VCI packaging or desiccant protection ## **Technical Support & Services** - **Parameter Development:** Custom parameters for specific applications - **Design Optimization:** DFAM consultation services - **Material Testing:** Application-specific mechanical testing - **Failure Analysis:** Comprehensive metallurgical analysis - **Training:** Operator and engineer training programs ## **Ordering Information** - **Standard Packaging:** 5 kg, 10 kg, 20 kg argon-sealed containers - **Lead Time:** 2-6 weeks depending on quantity - **Documentation:** Lot-specific Certificate of Analysis, MSDS - **Regional Availability:** Global distribution through authorized partners --- **3D Systems Corporation** *Precision Metal Additive Manufacturing* [www.3dsystems.com](https://www.3dsystems.com) Phone: +1-803-326-3900 --- **IMPORTANT NOTICE:** The mechanical properties listed are typical values obtained from standardized test specimens manufactured under controlled conditions. Actual performance in production parts may vary based on specific geometry, build parameters, and post-processing. For mission-critical applications, extensive application-specific testing is mandatory. Specifications subject to change without notice. Always consult current technical data sheets before design and production. © 2024 3D Systems Corporation. LaserForm is a registered trademark of 3D Systems Corporation. -:- For detailed product information, please contact sales. -: 3D Systems LaserForm® 17-4PH (A) H900 Stainless Steel Material Specification Dimensions Size： Diameter 20-1000 mm Length <7220 mm Size:We can customized as required Standard： Per your request or drawing We can customized as required Properties（Theoretical） Chemical Composition -:- For detailed product information, please contact sales. -: 3D Systems LaserForm® 17-4PH (A) H900 Stainless Steel Material Properties -:- For detailed product information, please contact sales. -:

Applications of 3D Systems LaserForm® 17-4PH (A) H900 Stainless Steel Rod Material -:- For detailed product information, please contact sales. -: Chemical Identifiers 3D Systems LaserForm® 17-4PH (A) H900 Stainless Steel Rod Material -:- For detailed product information, please contact sales. -:

Packing of 3D Systems LaserForm® 17-4PH (A) H900 Stainless Steel Rod Material -:- For detailed product information, please contact sales. -: Standard Packing: -:- For detailed product information, please contact sales. -: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Rod drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3691 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition