Maraging Steel Powder (18Ni300) Supplier and Exporter

Maraging Steel (18Ni300) powder (1.2709 / X3NiCoMoTi 18-9-5) is a vacuum induction melted, argon gas atomised maraging tool steel feedstock for additive manufacturing, supplied to Supplied to producer specification; wrought equivalent per DIN 1.2709 in 5-25 µm, 15-45 µm, 15-53 µm, 45-105 µm, 53-105 µm, 45-150 µm, 53-150 µm size fractions.

Prints soft and ages to over 1900 MPa in a single low-temperature step, with almost no distortion. That combination is why injection mould tooling is printed in it.

Maraging 18Ni300 Powder at a Glance

Maraging Steel Powder (18Ni300) - key specification
UNS / designation	1.2709 / X3NiCoMoTi 18-9-5
Werkstoff (W.Nr.)	1.2709
Alloy family	Maraging tool steel
Feedstock specification	Supplied to producer specification; wrought equivalent per DIN 1.2709
Size fractions	5-25 µm · 15-45 µm · 15-53 µm · 45-105 µm · 53-105 µm · 45-150 µm · 53-150 µm Held in stock or arranged with the manufacturer, depending on quantity.
Production route	Vacuum induction melted, argon gas atomised
Density	8.1 g/cm3
Melting range	1413-1454 C
Composition	18% nickel with 9% cobalt and 5% molybdenum, and carbon kept very low. Strength comes from intermetallic precipitation, not from carbon.
Minimum order	5 kg
Lead time	7 days from order confirmation

What Properties Does Printed Maraging 18Ni300 Reach?

Printed properties depend on the heat treatment, not just the alloy, so they are given per condition.

Typical mechanical properties of Maraging 18Ni300 by condition
Condition	Tensile strength	Yield strength	Elongation	Hardness
As built	1050-1150 MPa	900-1000 MPa	10-14%	33-37 HRC
Aged at 490 C for 6 hours	1900-2100 MPa	1800-2000 MPa	2-6%	50-54 HRC

Ageing happens at low temperature with almost no dimensional change, which is why mould inserts can be finish machined before hardening.

Which Processes Can Maraging 18Ni300 Powder Be Used In?

Maraging 18Ni300 powder by manufacturing process
LPBF	EBM	DED / cladding	MIM	Binder jetting	Thermal spray
Yes	Not applicable	Yes	Limited	Limited	Not applicable

What Is Maraging 18Ni300 Powder Used For?

Injection mould inserts with conformal cooling, die-casting tooling, and high-strength aerospace hardware.

Post-processing

Solution anneal then age at approximately 490 degrees C for 6 hours.

Should I use maraging steel or H13 powder?

Maraging 18Ni300 prints soft, machines easily, then ages at 490 C to over 1900 MPa with minimal distortion, which suits conformal-cooled injection mould inserts. H13 is the better choice when the tool sees sustained heat and thermal cycling, as in die casting, because it keeps hardness at temperature.

H13 Tool Steel Powder →

Characterisation and Packing

Each batch is supplied with chemical analysis, particle size distribution by laser diffraction to ASTM B822, apparent and tap density, and flow rate by Hall or Carney funnel. Morphology imaging, oxygen and nitrogen analysis and reporting to ISO/ASTM 52907 are available where your qualification requires them.

Powder is packed under argon in sealed containers with desiccant, labelled with lot number, alloy, particle size cut and date of atomisation.

Maraging 18Ni300 Powder: Frequently Asked Questions

Injection mould inserts with conformal cooling, die-casting tooling, and high-strength aerospace hardware.

5-25 µm, 15-45 µm, 15-53 µm, 45-105 µm, 53-105 µm, 45-150 µm, 53-150 µm. All of these are supplied, held in stock or arranged with the manufacturer depending on quantity. The cut follows the process rather than the alloy, so tell us the machine and we will confirm availability and lead time.

Supplied to producer specification; wrought equivalent per DIN 1.2709.

18% nickel with 9% cobalt and 5% molybdenum, and carbon kept very low. Strength comes from intermetallic precipitation, not from carbon.

Solution anneal then age at approximately 490 degrees C for 6 hours.

Chemical analysis, particle size distribution by laser diffraction to ASTM B822, apparent and tap density, and Hall or Carney flow rate. Morphology imaging, oxygen and nitrogen analysis and ISO/ASTM 52907 reporting are available on request.

Request a Quotation for Maraging Steel Powder (18Ni300)

Send the particle size cut, the quantity and the process you are running, and we will quote with lead time and the characterisation data you need. Call +91 7977 88 6611 or email info@auricoalloys.com.

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