Fine stainless steel powder suits small, complex MIM parts and detailed filling, and can increase sintering activity. Tongcheng provides particle-size analysis, sieving, blending and application support.
Compare more than the grade: define the powder delivery condition
Include the target material, particle size, manufacturing process and purchasing requirements so Tongcheng can quickly assess a standard powder, particle-size adjustment or custom development.
- Material and composition
- fine-particle stainless steel powderPlease also indicate the target grade, reference standards or current materials.
- Particle size distribution
- Specify D10, D50 and D90 values or a sieve-size rangeSelect in conjunction with MIM, pressing and sintering, part wall thickness, and fill requirements.
- Powder process data
- Density, flow and sampling methods are confirmed by projectDifferent test methods and forming routes require the use of comparable data.
- Chemistry and Interstitial Elements
- Determine items of concern based on material system and customer processComposition, carbon, oxygen, nitrogen or other inspection requirements may be stated in the inquiry.
- Packaging and supply
- Quantity, packaging unit, label, delivery date and destination countryUsed to check production arrangements, commercial quotations and export deliveries.
Engineering focus: Fine stainless steel powder
Review the material, particle-size, process and validation factors that matter for this application.
Finer powder is not always better; flowability, feedstock preparation and debinding must also be considered.
It is impossible to judge the proportion of fine powder and the tail of coarse particles by looking at D50 alone.
Different grades still need to check the complete particle size and process adaptation separately.
What processes are fine powder suitable for?
fine-particle powders are often used in MIM, small complex parts, thin-walled structures, and highly sinter active directions to help improve detail reproduction.
How particle size distribution affects manufacturing
D10, D50, D90, distribution width and fine powder ratio jointly affect powder flow, feedstock viscosity, mold cavity filling, debinding speed, sintering shrinkage and surface state.
Tongcheng fine powder product range
In the available volume-based particle size test records, the D50 values for 17-4PH, 17-4+3Cu, 440C and 439 fall within 8.223—9.896 μm. This is not a fixed range for all supply batches. Tongcheng can also provide sieving, blending and customized particle size solutions.
When to contact us
- MIM Complex, thin-walled or precision parts with high surface requirements
- Projects that require improved sintering activity or optimized filling
Confirm before quotation
- feedstock formula, viscosity, injection and debinding conditions
- Oxygen content, agglomeration, flow and coarse particle control
Discuss your powder project
Share the process step, operating conditions and part result you want to improve.
- Target grade, current material or reference material
- D10, D50 and D90 values or sieve range
- MIM or press-and-sinter process and current operating conditions
- Part application, target properties and estimated purchase volume
Technical references for this page
These references explain materials, processes or test methods. Third-party product data does not represent Tongcheng product specifications.

