Materials for Metal 3D Printing
Stainless Steel 316L* *Similar to X2CrNiMo17-12-2(ISO) / 316L(AISI)
Features
Austenitic stainless steels, as represented by 18Cr-8Ni, are the great anti-corrosion materials which are versatile and are used the most among the stainless steels.
Containing 18+% of chromium which is required for passivation, it shows remarkable corrosion resistance in the atmosphere, fresh water, neutral salt, organic acid, nitric acid (a powerful oxidant), alkali, and others.
It also has high-temperature oxidation resistance, which means that it is usable under a wide range of environmental conditions.
This corrosion resistance is maintained by the passive films on the surface. The loss of passivity results in localized corrosion.
SUS316L is made by putting less carbon(C) and more nickel(Ni), with the addition of molybdenum(Mo), to SUS304 which is represented by austenitic stainless steel 18Cr-8Ni. SUS316L has strength and corrosion resistance at high temperatures, while having less risks of work-hardening as it contains less carbon than SUS316.
Composition
(in %)
| Elements | C | Si | Mn | P | S | Ni | Cr | Mo | Cu | N | Fe |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Regular material (Representative Values) |
≦0.03 | ≦1.00 | ≦2.00 | ≦0.045 | ≦0.030 | 12.00～15.00 | 16.00～18.00 | 2.00～3.00 | Bal. | ||
| Powder material (Representative Values) |
≦0.03 | ≦0.75 | ≦2.00 | ≦0.025 | ≦0.010 | 13.00～15.00 | 17.00～19.00 | 2.25～3.00 | 0.5 | 0.01 |
Mechanical Properties
| Regular Material | After Printing | (Reference Values) | |
|---|---|---|---|
| Tensile Strength [MPa] | 480 or more | Horizontal direction (XY direction) |
640±50 |
| Vertical direction (Z direction) |
540±55 | ||
| Yield strength Rp0.2[MPa] | 177 or more | Horizontal direction (XY direction) |
530±60 |
| Vertical direction (Z direction) |
470±90 | ||
| Elastic Modulus [GPa] | 193 | Horizontal direction (XY direction) |
185 |
| Vertical direction (Z direction) |
180 | ||
| Elongation[%] | 40 or more | Horizontal direction (XY direction) |
40±15 |
| Vertical direction (Z direction) |
50±20 | ||
| Hardness [HV] | 200 or less | Horizontal direction (XY direction) |
188 |
| Surface Roughness (Ra) [μm] | ーーー | After printing | 13±5 |
| After blasting | 5±2 |
Applications
Parts for aerospace industries / food safety / vessels / wearable devices, Medical apparatus, Spare parts for mechinery, and others.
Case Studies
Related Information
- Materials for Metal 3D Printing：Stainless Steel (SUS630)
- Materials for Metal 3D Printing：Nickel Alloy ALLOY IN718
- Materials for Metal 3D Printing：Hastelloy
- Materials for Metal 3D Printing：Maraging Steel
- Materials for Metal 3D Printing：Titanium (Ti-6Al-4V)
- About Us
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Toray Precision is a pioneer in precision micromachining technology.
Since the founding of Toray Precision Co., Ltd. in 1955, we have been contributing to the synthetic fiber industries worldwide, by making spinnerets which is a key technology for synthetic fiber manufacturing.
Our experiences and technologies obtained through our history in the precision micromachining field are widely used in various industries nowadays, including semiconductor, measurement/inspection, aerospace, and medical instruments.