Iron-based
Iron-based powder is a raw material of alloy powder with iron as the main component, which is widely used in the fields of mechanical parts, 3C products, porous materials, tooling materials, magnetic materials, shielding materials, surface coatings, etc., and it is the raw material of powder metallurgy with a large dosage, and it has a high cost performance ratio.
18Ni300 maraging steel powder
Ultra-high strength · Outstanding toughness · Specifically designed for additive manufacturing
Process Advantages
Ultra-high strength
After aging treatment, the tensile strength is ≥1900 MPa and the hardness is ≥50 HRC, making it suitable for high‑load applications.
High sphericity ≥92%
Vacuum atomization technology delivers excellent sphericity, with minimal satellite particles, and ensures uniform, dense powder spreading.
Excellent liquidity
Hall flow rate ≤ 25 s/50 g, tapped density ≥ 4.30 g/cm³, with a significant improvement in printing efficiency.
High-temperature resistance
Excellent high-temperature stability, suitable for hot-work mold components and parts operating in high-temperature environments.
Microscopic Morphology & Product Applications
18Ni300 powder
Sphericity ≥ 95%, with very few satellite particles, a narrow particle size distribution, and perfect compatibility with SLM processes.
Typical 3D-printed components
Density > 99.9%, used in the aerospace, defense, and precision mold industries.
Electron micrograph
Aluminum foil bags, iron drums, and plastic drums packaging
Batch traceability, with support for third-party testing.
18Ni300 Maraging Steel: The Ultimate Balance of Ultra-High Strength and Toughness
18Ni300 is an ultra‑low‑carbon Fe–Ni alloy (corresponding to the American grade Maraging 300 and the European grade 1.2709), featuring a carbon‑free or near‑carbon‑free martensitic matrix. During aging, alloying elements such as Mo, Co, and Ti precipitate intermetallic compounds (e.g., Ni₃Ti, Ni₃Mo) that serve as second‑phase reinforcements, achieving an excellent combination of ultra‑high strength and outstanding toughness. Compared with conventional steels, it exhibits superior weldability and hot workability, minimal distortion during heat treatment, and high dimensional stability.
Typical Chemical Composition (wt%)
| element | Ni | Co | Mo | Ti | Al | C | P | S | Yes | Mn | Fe |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard value | 18.0-19.0 | 8.5-9.5 | 4.6-5.2 | 0.5-0.8 | 0.05-0.15 | ≤0.03 | ≤0.01 | ≤0.01 | ≤0.1 | ≤0.1 | Bal. |
| Typical measured values | 18.2-18.8 | 8.8-9.2 | 4.8-5.0 | 0.6-0.7 | 0.08-0.12 | 0.018 | 0.008 | 0.005 | 0.06 | 0.08 | Bal. |
Oxygen content ≤500 ppm | Nitrogen ≤200 ppm | Hydrogen ≤5 ppm, meeting the requirements for high‑quality printing.
Powder Physical Properties & Particle Size Distribution
| Particle size specification (μm) | D10 (μm) | D50 (μm) | D90 (μm) | Tap Density (g/cm³) | Loose packing density (g/cm³) | Hall flow rate (s/50g) | Oxygen content (ppm) |
|---|---|---|---|---|---|---|---|
| 15–53 μm | 17-23 | 30-35 | 50-58 | 4.4-4.9 | ≥3.9 | ≤25 | ≤0.05 |
| 53-150 μm | 56-66 | 90-102 | 138-160 | 4.5-4.8 | ≥3.9 | ≤25 | ≤0.05 |
* Particle size ranges can be customized based on the equipment’s laser spot size and layer thickness, with process‑tuning support provided.
Mechanical Properties (Aged Condition)
| Status | Tensile strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HRC) |
|---|---|---|---|---|
| Selective Laser Melting (SLM) | 1100-1250 | 900-1050 | 10-15 | 32-38 |
| As‑received condition (480–500°C × 3–6 h) | 1950-2100 | 1850-2000 | 3-7 | 50-54 |
* Mechanical properties are influenced by printing parameters and heat‑treatment processes; the values listed above are typical reference values. After aging treatment, the tensile strength is ≥1900 MPa, and the hardness is ≥50 HRC.
End-to-end testing capability
Each batch of powder undergoes comprehensive inspection for chemical composition, particle size distribution, sphericity, flowability, and tapped density, with a complete Certificate of Analysis (COA) provided to ensure the powder meets the stringent quality requirements of aerospace, defense, mold‑making, and other high‑end applications.
Typical application scenarios
Aerospace
Rocket engine components, high-strength structural parts, landing gear components
Precision mold
Injection molds, die-casting mold cores, conformal cooling molds
Military equipment
High-impact-resistant components, load-bearing parts for weapons, and bulletproof armor
Automotive industry
Racing transmission components, lightweight high-strength parts, and suspension systems
Petrochemicals
Chemical equipment, oil drilling pipelines, corrosion-resistant valves
Energy equipment
Turbine blades, high-temperature valves, nuclear reactor pressure vessels
Medical device
Surgical instruments, rehabilitation aids, and customized implant prototypes
3C electronics
Precision hinges, drone frames, high-strength lightweight components
The Core Advantages of Choosing TIJO 18Ni300 Maraging Steel Powder
- Ultra-high strength grade – After aging treatment, the tensile strength is ≥1900 MPa and the hardness is ≥50 HRC, meeting the requirements of ultra-high-load applications.
- Scaled and stable supply – Four fully automated atomization production lines with a monthly capacity exceeding 200 tons, meeting the demands of large‑scale continuous production.
- Full-inspection traceability system – ISO 9001:2015 certified; particle size, composition, and flowability reports are provided with each batch.
- Free samples with a 48-hour response. – Rapid provision of sample‑verified powders to reduce customers’ selection risks.
- Particle size customization / blend ratio mixing – Optimize the particle size distribution for different printers to enhance printing density.
- End-to-end printing technology support – Provide strategic recommendations and assist with process development.
Inquire Now for Free Samples
Fill out the form on the right or contact us directly; we will provide product samples, technical data sheets, and price quotes to help you quickly complete your additive manufacturing process validation.
Address: No.39, Liandong Yougu lnd. Park, Bachelor Street,Changsha City,Hunan Province, China.
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Address: No.39, Liandong Yougu lnd. Park, Bachelor Street,Changsha City,Hunan Province, China.
