Stainless Steel Powders SS316 SS316L
Stainless Steel Powders SS316 SS316L
  • Properties
  • Application
  • Standard Specification
  • Packing and Storage

CNPC POWDER© is an experienced stainless steel powder manufacturer and supplier, with a range from SS304 to SS430L, including basic austenitic grade, martensitic grade and ferritic grade. All these Stainless Steel powder have two different shapes: irregular and spherical.

CAS no.:


HS code:


Mean size



Grey black powder


Spherical form or irregular form



Product method:

Water atomized and Gas atomized

Specific Gravity/Density:


What are stainless steels:
Iron-base alloys containing different sufficient CHROMIUM to form a stable passive film on the surface.
10.5% is the qualifying concentration of Cr for an alloy to be called Stainless Steel.


What makes stainless steel “stainless”:
With sufficient chromium(>10.5%), the steel is able to form a protective film on the surface (passivate) in aqueous environments.



Properties of Austenitic(316,316L): (L means C 0.03%)

Excellent resistance to corrosion

High toughness and good buctility

Moderate strength, hardenable by cold work

High resistance to oxidation at elevated temperature

Low thermal conductivity

High coefficient of thermal expansion

Non-magnetic Not heat treatable

Alloying elements: Cr, Ni, (Mo) min 9%

Properties of ferritic:

    Low to moderate corrosion resistance
    Moderate strength & ductility
    Magnetic, not heat treatable
    Marginal high temp strength & oxidation resistance
    Higher thermal conductivity
    Lower coefficient of thermal expansion
    Low-cost option with functional corrosion resistance
    Alloying elements: Cr(Mo, Nb)

Stainless Steel Powder are Widely used in  PM, MIM, Sintering, 3D printing, aluminum castings and copper, zinc castings finishing surface treatment, sandblasting polished metal surface, in addition to casting workpiece edges, burrs, the blade surface, casting sandblasting surface grinding and other products. Make your product flat, smooth, shiny, reach whitening effect.
Stainless Steel Powder 316/316L Application suggest:
3D printing (spherical shape). Applied to the pressed and sintered powder metallurgy (PM); injection molding; sintered filter; chemical fiber spinning filter material.

Why use stainless steel:

  • Corrosion resistance
  • Oxidation resistance
  • Elevated temperature mechanical strength
  • Room temp mechanical strength, toughness
  • Low-cost wear resistant material (with 410)
  • Magnetic behavior with ferritic
Grade Composition (%) O (%) A.D.g/cm3 Particle Size
CNPC-SS304 Cr18-20, Ni8-12, C 0.08 0.45max 3.5-5.0 100mesh, 200mesh, 300mesh, 400mesh; 
D50:9-12μm, D50 3-5um, D50 1-2um,D50 0.501um
CNPC-SS304L Cr18-20, Ni8-12, C 0.03
CNPC-SS316 Cr16-18, Ni10-14, Mo2-3, C 0.08
CNPC-SS316L Cr16-18, Ni10-14, Mo2-3, C 0.03
CNPC-SS410L Cr11.5-13.5, C 0.03 4.0-5
CNPC-SS430L Cr16-18, C 0.05  3.5-4.5

Grade Package
CNPC-SS304 25KG/Package
CNPC-SS304L 25KG/Package
CNPC-SS316 25KG/Package
CNPC-SS316L 25KG/ Package
CNPC-SS410 25KG/ Package
CNPC-SS420 25KG/ Package
CNPC-SS430 25KG/ Package

Stainless SteelStorage:
  •  Easily oxide in high temperature.
  •  Usually stored in tank or jar.
  •  Carefully keep away from moist and damp. Store in dry and ventilating place.

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