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.
430L stainless steel powder · Low-carbon ferritic stainless steel powder
Soft magnetic properties · Oxidation resistance up to 800°C · Specifically designed for powder metallurgy, MIM, and 3D printing 15–53 μm / 15–45 μm / 53–150 μm / -500 mesh
430L Stainless Steel Powder Core Advantages
Low-Carbon Design · High Toughness
Carbon content ≤ 0.03% (for grade 430, ≤ 0.12%), effectively minimizing chromium carbide precipitation, reducing susceptibility to intergranular corrosion, and enhancing the toughness and corrosion resistance of sintered components.
800℃ oxidation resistance · High-temperature resistance
It exhibits stable oxidation resistance at temperatures below 800°C, making it suitable for applications such as automotive exhaust systems and high-temperature components.
Ferromagnetism · Soft Magnetic Properties
It exhibits ferromagnetic properties and low hysteresis losses, making it suitable for solenoid valve cores, magnetic sensor assemblies, magnetic cores, and shielding materials.
Cost-effective · No heat treatment required
Nickel-free or low-nickel designs offer significantly lower costs than austenitic stainless steels; in the sintered condition, they exhibit a tensile strength of 450–600 MPa, eliminating the need for heat‑treatment strengthening and thereby reducing process costs.
Product Real-World Photos & Microscopic Morphology
430L powder SEM (15–53 μm)
High sphericity ≥ 90%, narrow particle size distribution, and excellent flowability.
Real-life photos of the powder
Gray powder, packaged in vacuum‑sealed aluminum foil bags or iron drums.
PM/MIM/3D-printed parts
Sintered structural components, solenoid valve cores, MIM precision parts
430L low-carbon ferritic stainless steel powder
430L is a low‑carbon variant of 430 stainless steel (carbon content ≤0.03%, compared to ≤0.12% for 430). Its reduced carbon content results in fewer brittle phases and improved ductility, while maintaining excellent corrosion resistance and oxidation resistance, making it particularly well suited for powder metallurgy sintering processes. This material exhibits ferromagnetic properties and is a soft magnetic stainless steel with outstanding oxidation resistance below 800°C. TIJO produces 430L spherical powder using the inert gas atomization (IGA) process, achieving a sphericity of ≥95%, an oxygen content of 300–500 ppm, and a Hall flow rate of ≤25 s/50 g. In the sintered condition, it offers a tensile strength of 450–600 MPa and an elongation of ≥20%, and can be used directly without heat‑treatment strengthening. It complies with ASTM B 783 SS‑430L‑24 and MPIF Standard 35. Applications include powder‑metallurgy structural components, automotive exhaust systems, home appliance parts, electromagnetic devices, MIM precision parts, as well as cold/hot spraying and sintered filters.
430L is a ferritic stainless steel that cannot be hardened by heat treatment.
Corresponding grade
| Standard system | Corresponding grade |
|---|---|
| China GB/T | S11710, 022Cr18Ti |
| United States ASTM/AISI | 430L (UNS S43000) |
| Japanese JIS | SUS430L |
| International ISO | X2CrTi18-0 |
| Europe EN | X6Cr17 (1.4016) |
* Complies with ASTM B 783 SS-430L-24 and MPIF Standard 35.
Chemical Composition (wt%)
| element | 430L (Low Carbon) | 430 (Regular) | Note |
|---|---|---|---|
| C | ≤0.03 | ≤0.12 | The 430L is the low-carbon version; the key differences are… |
| Cr | 16.0-18.0 | 16.0-18.0 | Provides corrosion resistance and oxidation resistance. |
| Yes | ≤1.0 | ≤0.75 | Deoxidizer |
| Mn | ≤1.0 | ≤1.0 | Improve processing performance |
| Ni | ≤0.6 | ≤0.6 | Residual elements |
| P | ≤0.04 | ≤0.04 | Strict control |
| S | ≤0.03 | ≤0.03 | Strict control |
| Fe | Bal. | Bal. | Matrix element |
* The 430L low-carbon grade effectively reduces chromium carbide precipitation, lowers susceptibility to intergranular corrosion, and enhances the toughness and corrosion resistance of sintered parts. Refer to the batch inspection report for specific details.
Particle Size Specifications & Physical Properties
| Particle size specification | Tap density (g/cm³) | Hall flow rate (s/50g) | Oxygen content (ppm) | D10(μm) | D50(μm) | D90(μm) | Recommended Process |
|---|---|---|---|---|---|---|---|
| 15–53 μm | 4.4-4.9 | ≤25 | 300-500 | 17-22 | 30-34 | 48-55 | L-PBF laser printing, precision cladding |
| 15–45 μm | 4.4-4.8 | ≤25 | 300-500 | 16-20 | 27-32 | 47-51 | Precision L-PBF and MIM Injection Molding |
| 20–60 μm | 4.3-4.9 | ≤25 | 300-500 | 20-25 | 32-37 | 51-61 | L-PBF, Cold Spray |
| 53-150 μm | 4.5-4.8 | ≤25 | 300-500 | 56-66 | 90-102 | 135-155 | Cold spraying, powder metallurgy compaction |
| -500 mesh | 4.5-4.8 | — | 500-1000 | 3.5-4.5 | 11.5-12.5 | 22-26 | MIM ultra-fine injection, fine slurry |
* 15–53 μm and 15–45 μm are the standard recommended specifications, with a typical tapped density of approximately 2.8 g/cm³. Refer to the batch-specific test report for exact values.
Dense-phase properties (reference values)
| Parameter | Typical value | Note |
|---|---|---|
| Density | ≈7.7 g/cm³ | Dense state |
| Tensile strength | 450-600 MPa | As-sintered condition, no heat treatment required for strengthening. |
| Elongation | ≥20% | Sintered state |
| Antioxidation temperature | ≤800℃ | Stable antioxidant |
| Magnetic | Ferromagnetism | Soft magnetic properties, low hysteresis loss |
* The tensile strength and elongation are typical values for the sintered condition and can be achieved without heat treatment. 430L cannot be hardened by heat treatment.
Typical application areas
Powder Metallurgy Structural Components
Sintered stainless steel parts and structural components, with a low-carbon design that ensures excellent toughness and minimizes brittle phases.
Additive Manufacturing/3D Printing
Complex topology-optimized parts, rapid functional prototyping, and high sphericity ensure uniform powder spreading.
MIM injection molding
Micro‑precision parts and components with complex geometries, featuring high sphericity to achieve a high powder loading capacity.
Automotive industry
Exhaust system components and decorative parts exhibit excellent oxidation resistance below 800°C.
Home appliance components
Cooktop panels, microwave oven housings, and decorative components—exhibiting excellent corrosion resistance and aesthetic appeal.
Electromagnetic device
Solenoid valve spool, magnetic sensor assembly, magnetic core; ferromagnetic with low hysteresis loss.
Industrial Cutting Tools/Hardware
Industrial cutting tools and hardware tools, with excellent hardness and wear resistance.
Cold spraying/thermal spraying
Anti-corrosion coating, wear-resistant coating; high sphericity ensures uniform powder delivery.
430L vs. Related Stainless Steel Powders
| Material Type | Key Features | C(%) | Cr(%) | Ni(%) | Magnetic | Main applications |
|---|---|---|---|---|---|---|
| 430L | Low-carbon ferrite, soft magnetic | ≤0.03 | 16-18 | ≤0.6 | There is | Home appliances, exhaust systems, electromagnetic components, MIM |
| 430 | Ferrite, economical type | ≤0.12 | 16-18 | ≤0.6 | There is | General structural components, decorative elements |
| 304L | Austenite, excellent corrosion resistance | ≤0.03 | 18-20 | 8-12 | None | Food-grade, chemical, medical device |
| 316L | Austenitic, molybdenum-containing pitting-resistant | ≤0.03 | 16-18 | 10-14 | None | Marine engineering, chemical engineering, implants |
| 17-4PH | Precipitation hardening, high strength | ≤0.07 | 15-17 | 3-5 | There is | High-strength structural components, aerospace |
| 440C | High-carbon martensite, ultra-high hardness | 0.95-1.2 | 16-18 | ≤0.6 | There is | Cutting tools, bearings, wear-resistant parts |
430L is one of the ferritic stainless steel powders with the lowest carbon content (≤0.03%), offering both ferromagnetic properties and cost-effectiveness, making it an ideal choice for home appliances, exhaust systems, electromagnetic components, and MIM applications.
Process Recommendations and Component Selection
| Craftsmanship | Recommended particle size | Key parameters | Post-processing |
|---|---|---|---|
| L-PBF additive manufacturing | 15-53μm / 15-45μm | Laser power: 150–300 W; layer thickness: 30–50 μm. | Stress-relief annealing |
| Powder metallurgy pressing + sintering | 53-150 μm | Press at 500–800 MPa, sinter at 1120–1200°C (in an N/H atmosphere). | Can be used without heat treatment. |
| MIM injection molding | 15–45 μm / -500 mesh | Catalytic degreasing + sintering at 1120–1180°C | Can be used without heat treatment. |
| Cold spraying | 20-60μm / 53-150μm | Gas temperature: 500–800°C; pressure: 3–5 MPa. | Can be used without heat treatment. |
* In the sintered condition, 430L can achieve a tensile strength of 450–600 MPa and an elongation of ≥20%, eliminating the need for heat‑treatment strengthening and thereby reducing process costs.
End-to-end testing capability
Each 430 L batch of powder is tested for major elements (C, Cr, Si, Mn, Ni), impurities (P, S), particle size distribution, oxygen content, flowability, and bulk/ tapped density. A Certificate of Analysis (COA) is provided.
Packaging & Delivery
Powder packaging
Double-layer aluminum foil bag, vacuum-sealed + iron drum/plastic drum
Specifications: 1 kg, 5 kg, 10 kg, 25–50 kg per drum
Delivery time
In stock; ships within 2–5 days after order confirmation.
Custom particle size or minor formulation adjustments: 7–15 days.
Batch Traceability
Bulk product samples are retained, and COA reports are provided with the shipment.
MSDS available.
Free sample
Provide samples for PM/MIM/L-PBF process validation.
Customized Services
Grain size customization
Pre-alloyed powders can be customized with fine-tuned compositions to meet specific corrosion‑resistance or magnetic‑property requirements.
Technical Support
Provide parameter recommendations
Assist customers in resolving various issues that arise during use.
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.
