3D Printing AISI 4140
UNS G41400
Description
AISI 4140 alloy steel is a chromium-, molybdenum-, and manganese-containing low alloy steel. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength. With subsequent heat treatment processes, the mechanical properties of the material can be adapted very flexibly to the loads that occur. When it comes to 3D printing manufacturing, defect-free processing must be achieved by using specific alloy compositions and optimized process parameters due to its limited weldability.
General Information
| Items | 3D Printing AISI 4140 |
|---|---|
| Catalog | ACAM-3D-A008 |
| Apparent Density | 4.0 g/cm3 |
Chemical Component
| Fe | Cr | Mn | Mo | Si | C | O |
|---|---|---|---|---|---|---|
| Balance | 1.0 | 0.8 | 0.2 | 0.3 | 0.4 | 0.06 |
* Unit: %, typical values
Typical Powder Properties
| Items | 3D Printing AISI 4140 -1 | 3D Printing AISI 4140 -2 |
|---|---|---|
| Nominal Particle Range | 20-53 µm (max 5% over and undersize) | 53-150 µm (max 5% over and undersize) |
| Hall Flow | 14 s/50 g | -- |
* Other sizes can be customized
Mechanical Properties
| Items | 3D Printing AISI 4140 (Printed in Z-direction) | 3D Printing AISI 4140 (Printed in X/Y-direction) |
|---|---|---|
| Tensile Strength | 1140 MPa | 1170 MPa |
| Yield Strength | 1070 MPa | 1090 MPa |
| Elongation | 13% | 14% |
| IE Notch in Z/Y Direction | 70 J | 85 J |
| Hardness, HRC | -- | 39 |
* Stress relieved at 550 ℃ in Ar for 1h
* Technical data included herein should be used as a guideline only, and should not be construed as maximum or minimum values for specification or for final design, or for a particular use or application. The data may be revised anytime without notice.
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Alfa Chemistry is a manufacturer of standard & custom specialty metals & alloys. We stock a wide variety of alloys in different shapes and specifications. If you can't find the product or specification you need, please contact us directly.
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