Associated specifications: AMS6514, AMS6521, AMS6463, AMS-S-46850,
SAE J1099 (A538C), MIL-S-46850, UNS K93120, K93130, K93160
Single figures are nominal except where noted.
PowderRange M300 is an age hardenable martensitic tool steel with exceptional mechanical properties, specifically a high tensile strength and hardness. It is easily heat treated with superior mechanical properties being achieved after age hardening. The high carbon tool steels such as H13 or M2, which are typically used in tooling and molding applications, are very difficult to process by conventional Laser Powder Bed Fusion. PowderRange M300 offers a comparable alternative in terms of mechanical properties, but with proven additive manufacturing suitability. PowderRange M300 maintains strict control over residual alloying elements to optimize for additive manufacturing.
|Part Number||PowderRange M300 F||PowderRange M300 E|
|Application||L-PBF1||EB-PBF or DED(1)|
|Maximum Particle Size||Max 1 wt% > 53 µm2||Max 10 wt% > 106 μm(2)|
|Minimum Particle Size||Max 10 vol% < 15 µm3||Max 10 wt% < 45 μm(2)|
|LSD Percentile||D10, D50, D903, reported|
|Atomization||Nitrogen Gas Atomized|
|Apparent Density (G/CM3)||Measured according to ASTM B2124 and reported|
|Hall Flow (S/50G)||Measured according to ASTM B2135 and reported|
1ASTM/ISO 52900: Laser—Powder Bed Fusion (L-PBF), Electron-Beam Powder Bed Fusion (EB-PBF), Directed Energy Deposition (DED)
2ASTM B214 Standard Test Method for Sieve Analysis for Metal Powders
3 ASTM B822 Standard Test Method for Particle Size Distribution of Metal Powders and Related Compounds by Light Scattering
4 ASTM B212 Standard Test Method for Apparent Density of Free-Flowing Metal Powders Using the Hall Flowmeter Funnel
5 ASTM B213 Standard Test Method for Flow Rate of Metal Powders Using the Hall Flowmeter Funnel
Testing of powder will fulfill certification requirements to Nadcap Materials Testing and ISO/IEC 17025 Chemical, per relevant ASTM procedures
FIGURE 1—SEM IMAGE OF TYPICAL PowderRange M300 POWDER
Additive manufacturing process guidance
ASTM/ISO 52900: LASER-POWDER BED FUSION (L-PBF)
TRANSVERSE (X-Y PLANE)
LONGITUDINAL (Y-Z PLANE)
Mean densities greater than 99.8%
Mean densities up to 100%
Lath martensite microstructure
Minimal spatter porosity
Some evidence of weld lines
Recrystallized equiaxed grain structure minimizes anisotropy
HIP/Sol/ Age, etched6
Lath martensite microstructure
6 Etched with Ralph’s etchant
Typical achievable mechanical properties
7Average of a minimum of 5 samples taken from across the extents of a build plate in each orientation and for each heat treatment. Testing performed in accordance with ASTM E8/E8M-16a (tensile), ASTM E23-18 (impact energy) and ASTM E18-19 (hardness). Additional data may be available through a wide range of consortia and other collaborations. Please contact Carpenter Additive for additional information.
8 Forged Bar: https://www.carpentertechnology.com/en/product-solutions/cartech-nimark-alloy-300/#
IMPORTANT NOTE: The following 4-level rating scale (Excellent, Good, Moderate, Restricted) is intended for comparative purposes only and is derived from experiences with wrought product. Additive manufactured material may perform differently; corrosion testing is recommended. Factors that affect corrosion resistance include temperature, concentration, pH, impurities, aeration, velocity, crevices, deposits, metallurgical condition, stress, surface finish, and dissimilar metal contact.
Corrosion resistance of PowderRange M300 is limited. To discuss high strength, stainless steel alloy options please contact Carpenter Additive.
|Other Generic Names|
|GE Additive (Concept Laser)|
|DMG Mori (Realizer)|
|Maraging Steel, ISO X3NiCoMo-Ti18-9-5|
|LaserForm Maraging Steel|
The mechanical and physical properties of any additively-manufactured
material are strongly dependent on the processing conditions used to
produce the final part. Significantly differing properties can be obtained by
utilizing different equipment, different process parameters, different build
rates and different geometries. The properties listed are intended as a
guide only and should not be used as design data.
The information and data presented herein are typical or average values
and are not a guarantee of maximum or minimum values. Applications
specifically suggested for material described herein are made solely for the
purpose of illustration to enable the reader to make his/her own evaluation
and are not intended as warranties, either express or implied, of fitness for
these or other purposes. There is no representation that the recipient of
this literature will receive updated editions as they become available.
Unless otherwise specified, registered trademarks are property of
CRS Holdings Inc., a subsidiary of Carpenter Technology Corporation.