440C Stainless Steel Powder (Fe-Cr-C)
High-carbon martensitic stainless for hardened bearing and wear components (MIM/AM). Small quantities, prototypes and custom made-to-order specifications are welcome.
15–150µmParticle Size Range
C 0.95–1.2%Composition
Custom Made-to-OrderGrade & Quantity
WorldwideExport Shipping
440C Stainless Steel Powder — Grades & Specifications
High-carbon martensitic stainless for hardened bearing and wear components (MIM/AM). The options below are typical; specify your target values in the request form and we will confirm availability, lead time and pricing.
| Material | 440C Stainless Steel Powder |
|---|---|
| Chemical formula / alloy designation | Fe-Cr-C |
| CAS number | Alloy — no single CAS number (Fe base; Cr/C per 440C spec) |
| Particle size | 15–45 / 15–53 / 20–60 / 53–150µm graded cuts (also -500 mesh); primarily supplied for MIM — confirm AM qualification at quotation |
| Composition | Cr 16–18%, C 0.95–1.2%, Mn ≤1%, Si ≤1%, Ni ≤0.6%, P ≤0.04%, S ≤0.03%, Fe balance |
| Morphology | Spherical, gas-atomized (Hall flow <25s/50g); primarily MIM-oriented feedstock |
| Appearance | Gray metallic powder |
| Typical applications | Bearings & Wear Parts, Cutlery & Precision Tooling |
Applications by Industry
Bearings & Wear PartsHigh-carbon martensitic stainless for hardened bearing and wear components (MIM/AM).
Cutlery & Precision ToolingHardenable stainless for precision cutting components.
Particle Size & Mesh Conversion
Reference for converting between US mesh and microns/millimetres. Figures are nominal sieve openings and may vary slightly by standard.
| Mesh (US) | Micron (µm) | mm | Inch | Remarks |
|---|---|---|---|---|
| 3 | 6730 | 6.730 | 0.2650 | |
| 4 | 4760 | 4.760 | 0.1870 | |
| 5 | 4000 | 4.000 | 0.1570 | |
| 6 | 3360 | 3.360 | 0.1320 | |
| 7 | 2830 | 2.830 | 0.1110 | |
| 8 | 2380 | 2.380 | 0.0937 | |
| 10 | 2000 | 2.000 | 0.0787 | |
| 12 | 1680 | 1.680 | 0.0661 | |
| 14 | 1410 | 1.410 | 0.0555 | |
| 16 | 1190 | 1.190 | 0.0469 | |
| 18 | 1000 | 1.000 | 0.0394 | |
| 20 | 841 | 0.841 | 0.0331 | |
| 25 | 707 | 0.707 | 0.0278 | |
| 30 | 595 | 0.595 | 0.0234 | |
| 35 | 500 | 0.500 | 0.0197 | |
| 40 | 420 | 0.420 | 0.0165 | |
| 45 | 354 | 0.354 | 0.0138 | |
| 50 | 297 | 0.297 | 0.0117 | |
| 60 | 250 | 0.250 | 0.0098 | |
| 70 | 210 | 0.210 | 0.0083 | |
| 80 | 177 | 0.177 | 0.0070 | |
| 100 | 149 | 0.149 | 0.0059 | |
| 120 | 125 | 0.125 | 0.0049 | |
| 140 | 105 | 0.105 | 0.0041 | |
| — | 100 | 0.100 | 0.0039 | Sand |
| 170 | 88 | 0.088 | 0.0035 | |
| 200 | 74 | 0.074 | 0.0029 | |
| — | 70 | 0.070 | 0.0027 | |
| 230 | 63 | 0.063 | 0.0024 | Human hair |
| — | 55 | 0.055 | 0.00217 | |
| 270 | 53 | 0.053 | 0.0021 | |
| — | 50 | 0.050 | 0.00197 | |
| 325 | 44 | 0.044 | 0.0017 | |
| — | 40 | 0.040 | 0.00157 | |
| 400 | 37 | 0.037 | 0.0015 | |
| 550 | 25 | 0.025 | 0.00099 | |
| 625 | 20 | 0.020 | 0.00079 | |
| 1200 | 12 | 0.012 | 0.0005 | |
| 1250 | 10 | 0.010 | 0.000394 | |
| — | 7 | 0.007 | 0.000276 | |
| 2500 | 5 | 0.005 | 0.000197 | |
| 4800 | 3 | 0.003 | 0.000118 | |
| 5000 | 2.5 | 0.0025 | 0.000099 | Bacteria (approx.) |
| 12000 | 1 | 0.001 | 0.0000394 |
Information Required for Quotation
- Grade / purity (e.g. ≥99.95%)
- Particle size / target (µm, or mesh)
- Quantity
- Application environment
- Required delivery country
Lead time depends on grade, particle size, quantity and processing requirements. Export availability can be reviewed based on destination country and material type. A Certificate of Analysis can be provided on request.
Request a Quote or Custom Order
Tell us your grade, particle size and quantity. We typically reply within one business day.
Frequently Asked Questions
What purity / grade options are available for 440C Stainless Steel Powder?
440C Stainless Steel Powder is offered in the grades listed on this page (Cr 16–18%, C 0.95–1.2%, Mn ≤1%, Si ≤1%, Ni ≤0.6%, P ≤0.04%, S ≤0.03%, Fe balance). Other grades can be reviewed on request depending on your application and quantity.
What particle sizes can you supply for 440C Stainless Steel Powder?
The typical size range supplied is 15–45 / 15–53 / 20–60 / 53–150µm graded cuts (also -500 mesh); primarily supplied for MIM — confirm AM qualification at quotation. Please specify your target value in the request form and we will confirm availability.
Can 440C Stainless Steel Powder be made to custom specifications?
Yes. 440C Stainless Steel Powder can be produced to order — grade, particle size and packaging can be customized to your specification. Select "Custom Order" in the request form and provide your target values.
What is the minimum order quantity (MOQ)?
Order quantity is flexible and small quantities and prototype requests are welcome. Please state your required quantity in the form for an accurate quotation.
Can you export and ship 440C Stainless Steel Powder internationally?
Yes, export inquiries are welcome. Availability and shipping are reviewed based on destination country, grade and quantity.
Do you provide a Certificate of Analysis (COA) or technical data?
A Certificate of Analysis and technical data can be provided on request for supplied lots.
Related Products
Request a Quote for 440C Stainless Steel Powder
Send us your grade, particle size, quantity and application. We will review availability, quotation and lead time. Small quantities, prototypes and custom made-to-order specifications are welcome.