Select stainless steel powder for valve cores and seats, small pump-body components and fluid-control parts according to fluid, pressure, friction, sealing, porosity and surface requirements.
This page is a typical project plan and does not correspond to a specific customer name or unconfirmed delivery results.
Divide similar projects into four executable links
Demonstrates how to select stainless steel powder for valve and pump precision parts based on medium, pressure, friction, sealing, pores and surface.
Project goal: Select materials according to medium and friction conditions
Parts need to consider the fluid medium, temperature, pressure, start-stop frequency, mating friction, sealing requirements and cleaning conditions at the same time. Materials cannot be selected based on just the word "stainless steel".
Common difficulties: high hardness and corrosion resistance cannot always be maximized at the same time
440C can be used as the direction of high hardness and wear resistance, 17-4PH can be used as the direction of balance between strength and corrosion resistance, and is ultimately affected by density, heat treatment, porosity and surface condition.
Tongcheng solution: from material family to powder and process matching
First, candidate materials are selected according to the real medium and failure mode, and then the plan is determined based on particle size, forming route, sintering density, heat treatment and mechanical processing.
Verification focus: leakage, wear, corrosion and dimensions
It is recommended to evaluate density, size, hardness, surface, wear, corrosion and sealing performance according to actual or agreed working conditions, and keep batch and heat treatment records.
The engineering team can further evaluate based on actual grade, particle size, process, target results and procurement plan.
Discuss your powder project
Share the process step, operating conditions and part result you want to improve.
- Part name, drawings, structure and usage conditions
- Current Materials, Powder Sizes and Manufacturing Routes
- Current defects, inspection data and target improvement results
- Estimated purchase volume, project stage and delivery countries
Technical references for this page
These references explain materials, processes or test methods. Third-party product data does not represent Tongcheng product specifications.

