Description
Overview Of 316L
316L Stainless Steel Powder is a specialized grade of stainless steel classified based on its metallurgical structure as an austenitic alloy. Renowned for its exceptional resistance to corrosion, this powder is extensively utilized in advanced manufacturing processes such as 3D printing and additive technologies to fabricate components with superior mechanical strength, durability, and excellent weldability, ensuring reliability in harsh environments.
Powder Chemical Composition(wt,-%)
| Element | C | Cr | Ni | Cu | Nb | Mo |
| 316L | ≤0.03 | 16.00-
18.00 |
10.00-
14.00 |
– |
– |
2.00-3.00 |
| Element | Si | Mn | S | P | O | Fe |
| 316L | ≤1.00 | ≤2.00 | ≤0.03 | ≤0.045 | ≤0.08 | Bal |
Physical Properties
| Grade | Size | Particle size distribution | Hall flow
rate |
Bulk
density |
Tap
density |
||
| D10(μm) | D50(μm) | D90(μm) | |||||
| 316L | 15-53μm | ≥15 | 30-40 | ≤60 | ≤25s/50g | ≥4.0g/cm³ | ≥4.4g/cm³ |
Mechanical Properties
| Grade | Hardness
(HRC) |
Tensile strength
(Ob/Mpa) |
Yield strength
(Opo.2/Mpa) |
Elongation at break(δ5/%) |
| 316L | 13-15 | ≥650 | ≥550 | ≥45 |
Heat Treatment Recommendation
| Grade | Recommended HT solution |
| 316L | 1050C/2H/WQ |
Advantages
● Superior corrosion resistance (Mo content prevents pitting/crevice corrosion).
● High-temperature stability (up to 800°C).
● Biocompatibility (ISO 10993-certified for medical use).
● Excellent mechanical properties post-sintering.
Primary Applications
Additive Manufacturing (3D Printing)
● Used in selective laser melting (SLM) and direct metal laser sintering (DMLS) to produce complex components for aerospace, medical implants, and industrial tools, leveraging its corrosion resistance and biocompatibility.
Medical Devices
● Fabricates surgical instruments, dental implants, and temporary orthopedic devices due to its biocompatibility and resistance to bodily fluids.
Chemical & Petrochemical Industry
● Manufactures valves, pumps, and reactor components exposed to corrosive chemicals (e.g., acids, chlorides) and high-temperature environments.
Marine Engineering
● Produces fittings, fasteners, and offshore equipment resistant to saltwater corrosion.
Automotive & Aerospace
● Used for fuel system components, exhaust parts, and lightweight structural elements requiring high strength-to-weight ratios and heat resistance.
Energy Sector
● Applies in nuclear reactor components, heat exchangers, and oil/gas pipeline coatings for durability in extreme conditions.
Metal Injection Molding (MIM)
● Forms small, intricate parts like watch components, connectors, and micro-gears with high precision.
Surface Coatings & Repairs
● Utilized in thermal spray or laser cladding to enhance wear/corrosion resistance of industrial machinery and marine components.
Food Processing Equipment
● Fabricates hygienic machinery parts (e.g., mixers, valves) compliant with FDA standards due to non-reactivity and ease of sterilization.
Research & Prototyping
● Ideal for R&D of custom alloys or testing new designs in corrosive environments.
