Applications
Where RS&M stainless steel powder is used after sintering
The core market we serve.
Sintered porous metal filter cartridges
Our 150–250 mesh water-atomized 316L and 304L powder is purpose-engineered as the raw material for sintered metal filter cartridges used in compressed-gas filtration, hydraulic fluid filtration, polymer melt filtration, high-temperature gas filtration, and steam systems. The irregular cauliflower morphology produced by water atomization gives strong inter-particle necking during sintering, producing predictable porosity and burst strength. Multi-layer cartridges (coarse support layer + fine filtration layer) typically combine 150-mesh and 250-mesh feeds from the same heat to keep chemistry consistent through the depth of the wall.
A growing share of our shipments.
PTFE membrane-laminated filter cartridges (覆膜滤芯)
When a sintered metal cartridge serves as the substrate for a laminated PTFE membrane, the substrate's surface roughness, pore-size uniformity, and sintered neck integrity determine how well the membrane bonds and how the cartridge survives reverse-pulse cleaning. Our finer 250-mesh fraction is graded for low-roughness substrates suitable for membrane lamination. We work directly with membrane converters on substrate trials.
Capability we are expanding.
Powder metallurgy & MIM feedstock
Water-atomized stainless steel powder is a cost-effective feedstock for press-and-sinter PM components, sintered structural parts, and binder-jet additive manufacturing. For MIM applications that traditionally specify gas-atomized spherical powder, we can provide finer fractions of water-atomized powder (-325 mesh and below) for cost-driven applications. We accept custom PSD and oxygen-content targets — minimum trial order 25 kg.
Selected fractions, by request.
Thermal spray & surface engineering
Coarse fractions of our water-atomized 316L can be used for arc-spray and selected thermal-spray processes where particle deposition behavior tolerates irregular morphology. We do not stock plasma-spray-grade gas-atomized spherical powder; for high-end thermal-spray applications we will refer you to a partner.
Open to exploration.
Other industrial powder applications
Friction materials, brake pads, electrical contacts, weighting fillers, soft magnetic composites — we welcome inquiries from any industry where stainless steel particulate is a fit. Small-quantity trial orders are available.
Send us your sintering profile, target pore size, or feedstock spec
We will tell you whether it is in our process window — one business day, no sales runaround.