Martensitic stainless steel powder is suitable for high hardness, wear resistance, cutting edges and friction parts. Tongcheng focuses on providing 440C powder and particle size technical 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
- Martensitic 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: Martensitic stainless steel powder
Review the material, particle-size, process and validation factors that matter for this application.
Martensitic materials often require co-engineering with heat treatment and surface processing.
Tongcheng already has 440C particle-size analysis data, which can be used for further project communication.
Materials cannot be selected based solely on their highest hardness.
Advantages of martensitic stainless steel
Martensitic stainless steel can obtain higher hardness and wear resistance through heat treatment, and is suitable for shearing edges, tools, friction parts and precision mechanical parts.
440C stainless steel powder
In the volume-based particle size test record dated 2026-04-09, Tongcheng 440C powder has D10 of 2.619 μm, D50 of 8.223 μm and D90 of 23.669 μm. These are the results of that test; for development work in MIM and precision powder forming, the particle size specification for supply is confirmed for each project.
From powder to finished product performance
Engineering teams can help optimize manufacturing routes around particle distribution, filling, sintering densification, dimensional deformation, heat treatment and surface processing.
When to contact us
- Shears, tools, friction and wear parts
- Precision small parts requiring complex shapes and subsequent heat treatment
Confirm before quotation
- Impact load, hardness, cutting edge and corrosion resistance targets
- Quenching and tempering, grinding and polishing and dimensional deformation 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.