Stainless Steel 316L(SS316L) is the most commonly used austenitic stainless steel, known for its excellent mechanical properties, corrosion resistance, and weldability. It is made by adding 2~3% of Mo in SS304 enhancing its corrosion resistance, to improve corrosion resistance in chloride environments like seawater. SS316L offers excellent creep strength at high temperatures.
Key Feature
High Ductility
High Strength
Excellent Machinability & Formability
Excellent Corrosion Resistance
Non-Magnetic
Application
Chemical Industry
Medical Industry
Maritime Industry
Food Industry
Flange, Valve, Pump
Chemical Composition
UNS S31603
Fe
Cr
Ni
Mo
Mn
Si
N
P
S
C
Weight Percent(wt%)
Bal.
16.0 - 18.0
10.0 - 14.0
2.0 - 3.0
Max 2.0
Max 0.75
Max 0.1
0.045
0.03
Max 0.03
Mechanical Properties
Process
Tensile Strength (MPa)
Yield Strength (MPa)
Elongation (%)
Reduction of Area (%)
Hardnes (Hv)
ASTM A743
Min. 485
Min. 205
Min. 30
-
-
Casting
503 / 515
274 / 275
52 / 63
77 / 88
155
Forging
581 / 588
266 / 296
66 / 71
80 / 83
151
InssTek (DED)XY/Z
573 / 575
419 / 450
35 / 36
40 / 45
182
Powder
SEM (x100)
SEM (x200)
Powder Spec. [Spherical for AM]
Powder Size (㎛)
Flowability [ASTM B213 / B212]
Avg
83.16
Apparent Density (g/㎤)
4.64
Min
44.81
Flow Time for Mass (s/50g)
12.58
Max
162.80
Flow Rate for Volume (s/㎤)
1.17
Melting Point
Celsius (℃)
Fahrenheit (°F)
1371-1421
2500 - 2590
DED Process Parameter
Powder
4.50 g/min
Method
CFCFC
Pattern
Zigzag
Toolpath Spacing
0.8 mm
Layer Height
450 ㎛
Gas (L/min)
Coaxial
8.0
Powder
3.0
Shield
10.0
Dwell Time
3.5 sec
Travel Speed
0.85 m/min
No.
Height
Laser Power (W)
1
480 ~ Max
500
2
460 ~ 480
545
3
440 ~ 460
575
4
420 ~ 440
605
5
400 ~ 420
620
6
380 ~ 400
665
7
360 ~ 380
685
8
340 ~ 360
725
9
320 ~ 340
755
10
0 ~ 320
785
-
Default
575
Published research paper using InssTek’s technology
I Paper Review
Multi-materials components development for power applications by directed energy deposition.
DZUGAN, J., LI, Y., MELZER, D., BRAZDA, M., REIS, A., KOUKOLIKOVA, M.,
& KRAUS, L. (2024).
This study highlights the advanced capabilities of AM with InssTek's DED Technology, and explores key factors influencing the joint quality of multi-material components for various applications.
Materials & Method
Combination of IN718 and SS316L, various deposition angles for material interfaces, ranging from horizontal to vertical directions, were explored. In the combination of IN625 and 42C steel, horizontal deposition with varying sequences of material deposition was employed. And Metallographic as well as mechanical properties investigations were carried out.
Conclusions
The research demonstrates that factors like deposition order, interface orientation, and surface quality significantly influence the structural integrity and mechanical properties of materials.
In many industrial applications, single-material components struggle to meet all operational demands, necessitating the development of multi-material components. This allows for simple and safe assembly.
* Reference - SMiRT (2024), Multi-materials componets development for power applications by directed energy deposition
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