Maraging Steel 18Ni300 Spherical Powder (18Ni300)
Maraging tool steel (18Ni300 / M300 / 1.2709) spherical powder for conformal-cooled mold tooling and high-hardness tooling applications. Small quantities, prototypes and custom made-to-order specifications are welcome.
15–53 µmParticle Size Range
1.2709 / M300 gradePurity Grade
Custom Made-to-OrderGrade & Quantity
WorldwideExport Shipping
Maraging Steel 18Ni300 Spherical Powder — Grades & Specifications
Maraging tool steel (18Ni300 / M300 / 1.2709) spherical powder for conformal-cooled mold tooling and high-hardness tooling applications. The options below are typical; specify your target values in the request form and we will confirm availability, lead time and pricing.
| Material | Maraging Steel 18Ni300 Spherical Powder |
|---|---|
| Chemical formula | 18Ni300 |
| CAS number | Alloy — no single CAS number |
| Particle size | 15–53 µm (LPBF); process cuts from ≤16µm (binder jetting) to 150µm (DED) |
| Purity | 1.2709 / M300 grade |
| Morphology | Spherical (gas-atomized) |
| Appearance | Gray metallic powder |
| Composition (wt%) | Fe balance, Ni 18%, Co 9.0%, Mo 4.8%, Ti 0.7%, Al 0.1%, C ≤0.03%, Cr ≤0.3% |
| Process-specific cuts | Binder jetting ≤16/22/32/38/45µm · LPBF 15–53 & 10–45µm · E-PBF 45–106µm · DED 53–150µm |
| Typical applications | Conformal-cooled mold tooling, Rubber-tire mold sipes, High-hardness tooling, Aerospace tooling |
Applications by Industry
Conformal-cooled mold toolingInjection-mold tooling with internal cooling channels.
Rubber-tire mold sipesHigh-precision tire-mold detail features.
High-hardness toolingWear-resistant tooling components.
Aerospace toolingPrecision high-strength tooling.
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. 1.2709 / M300 grade)
- 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 Maraging Steel 18Ni300 Spherical Powder?
Maraging Steel 18Ni300 Spherical Powder is offered in the grades listed on this page (1.2709 / M300 grade). Other grades can be reviewed on request depending on your application and quantity.
What particle sizes can you supply for Maraging Steel 18Ni300 Spherical Powder?
The typical size range supplied is 15–53 µm (LPBF); process cuts from ≤16µm (binder jetting) to 150µm (DED). Please specify your target value in the request form and we will confirm availability.
Can Maraging Steel 18Ni300 Spherical Powder be made to custom specifications?
Yes. Maraging Steel 18Ni300 Spherical 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 Maraging Steel 18Ni300 Spherical 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.
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Request a Quote for Maraging Steel 18Ni300 Spherical 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.