Atomfair 18Ni300 Maraging Steel Powder

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18Ni300 is an ultra-low carbon Fe-Ni alloy, based on carbon-free or micro-carbon martensite. It achieves secondary phase strengthening via precipitation of alloy compounds from Mo, Co, Ti, Al during aging, with ultra-high strength and excellent toughness. Suitable for SLM, used in mold manufacturing, aerospace, precision cutting tools.

SKU: AFMSXKJU327
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Description

Ultra-low carbon Fe–Ni alloy powder with exceptional strength and toughness, designed for additive manufacturing.

Chemical Composition (wt.%)

Element Specification
Fe Balance
Ni 17.5–18.5
Al 0.05–0.15
Ti 0.6–1.0
Mo 4.5–5.0
Co 8.5–10.0
C ≤0.03
Si ≤0.1
Mn ≤0.15
Cr ≤0.6
P ≤0.01
S ≤0.01
N ≤0.02

Physical Properties

Parameter Specification
D10 (μm) ≥15
D50 (μm) 30–40
D90 (μm) ≤56
Sphericity ≥0.9
Apparent Density (g/cm³) ≥4.0
Tapped Density (g/cm³) ≥4.5
Flowability (s/50g) ≤20

Mechanical Properties

Condition Hardness (HRC) Tensile Strength (MPa) Elongation (%)
As-deposited 38–42 ≥1170 ≥11.0
Heat-treated 54–57 ≥2100 ≥4.0

Applications

Mold manufacturing, aerospace components, precision cutting tools and high-performance structural parts.

Processing Method

Suitable for Selective Laser Melting (SLM)

Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.

To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.

Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).