Material Description
316L have chemical composition corresponding to ASTM F138 “Standard Specification for Wrought 18Cr-14Ni-2.5Mo Stainless Steel Bar and Wire for Surgical Implants (UNS S31673)”. This kind of stainless steel is characterized having a good corrosion resistance and evidence that there are no leachable substances in cytotoxic concentrations.
Material Properties High hardness and toughness High corrosion resistance High machine-ability Can be highly polished | Applications Plastic injection and pressure die-casting molds, extrusion dies Aerospace, especially turbine industry Cutlery and kitchenware Maritime components Spindles and screws Automotive industry General engineering, like watches, jewelries, frames, decorations Entry-level material for Laser Sintering Technology |
Composition of Powder (ASTM F138)
Element | Chemical Formula | Chemical Composition (%) | CAS NO. |
Carbon | C | ≤0.03 | 7440-44-0 |
Manganese | Mn | ≤2.00 | 7439-96-5 |
Silicon | Si | ≤1.00 | 7440-21-3 |
Nickel | Ni | 10.0-14.00 | 7440-02-0 |
Copper | Cu | ≤0.30 | 7440-50-8 |
Phosphorus | P | ≤0.035 | 7723-14-0 |
Chromium | Cr | 16.00-18.00 | 7440-47-3 |
Molybdenum | Mo | 2.00-3.00 | 7439-98-7 |
Iron | Fe | Bal | 7439-89-6 |
Mechanical Properties of Additive Manufactured Components
As Built | |
Tensile Strength (Remark 3) | |
| Horizontal Direction (XY) | 650MPa ±20MPa |
| Vertical Direction (Z) | 560MPa ±10MPa |
Yield Strength (Remark 3) | |
| Horizontal Direction (XY) | 540MPa±20MPa |
| Vertical Direction (Z) | 490MPa±20MPa |
Elongation at Break (Remark 3) | |
| Horizontal Direction (XY) | 40%±5% |
| Vertical Direction (Z) | 45%±5% |
Modulus of Elasticity (Remark 3) | |
| Horizontal Direction (XY) | 190GPa±10GPa |
| Vertical Direction (Z) | 165GPa±10GPa |
Hardness HRB (Remark 4) | 89 |
Note:
1. The hollow ratio of the printed part is below 0.5%, and the component density is above 99.5%, normally at 99.7-99.9%.
2. Particle size distribution optimized to suit specific machine platforms and process types (i.e., SLM, EBM, LMD, etc.) Custom sizing also available.
3. Full powder qualification including (but not exclusive to) the following: Size Distribution, Flow Properties, Chemistry and Morphology.
Remarks:
1. Metal powders of AMC has been tested on EOS M280/M290/M400, Concept Laser M2, SLM Solutions SLM 125/SLM 280, Trumpf Truprint 1000/ Truprint3000, Renishaw REN AM400, Farsoon FS273M/ FS271M, Eplus EP-M650H/EP-450H/EP-M260/EP-M450D, HBD 200/HBD350 and so on.
2. AMC can customize the chemical composition, particle size, flowability of the metal powders in additive manufacturing.
3. Tested at ambient temperature by Nadcap and UKAS accredited independent laboratory. Test ASTM E8. Machined prior to testing.
4. Tested to ASTM E384-11, after polishing.
Well-Proportioned PSD
High Sphericity
Low Oxygen Content
Cost Effective
