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Rio Tinto Metal Powders Atomet 4401 is a highly compressible, water-atomized alloy steel containing 0.85% molybdenum, designed for use in high-strength, high-performance powder metallurgy and powder forging applications.
Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

Base Chemicals Features
Features
  • Compressibility - This extends the benefits of pre-alloyed powders to high-density applications above 7.0 g/cm3 giving higher strength, higher density PM parts and enhancing compaction capability.
  • Hardenability - molybdenum enhances heat-treated properties without sacrificing compressibility, thus improving the hardness and tensile strength.
  • Consistency - a stable ore base and ultra-modern processing capability, including SPC, assure lot-to-lot consistency and reduced part-to-part variation.
  • Purity and cleanliness - state-of-the-art clean steel practices and a proprietary powder manufacturing process produce a powder with exceptionally low levels of residuals and inclusions, resulting in improved mechanical and dynamic properties of PM and PF parts.

Applications & Uses

Markets

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Carbon0.003wt%-
Oxygen0.08wt%-
Sulfur0.009wt%-
Manganese0.15wt%-
Molybdenum0.85wt%-
Apparent Density2.92g/cm³-
Flow26.0s/50g-
Density* (600MPa)7.1g/cm³-
Density*

Density measured in water.

Technical Details & Test Data

Particle Size Analysis
  Particle Size Analysis, wt%

U.S. Mesh
µm

+60 +100 +325 -325
+250 +150 +45 -45
Trace 10 65 25