At a glance

Item Detail
Name Atomized iron powder (water-atomized Fe)
CAS No. 7439-89-6 (iron)
Typical purity Fe ≥ 99%
Typical size 40–300 mesh (screened cuts within approx. 50–425 μm)
Apparent density approx. 2.9–3.1 g/cm³ (reduced/annealed)
Main uses Powder metallurgy (PM) sintered parts, welding consumables, soft magnetic composites (SMC), chemical & environmental

Material overview

Atomized iron powder is made by disintegrating molten pig iron or low-carbon steel with high-pressure water (water atomization) or gas, followed by rapid solidification. More than 90% of global atomized iron powder is water-atomized; the irregular particle shape interlocks during pressing, giving excellent compactability and green strength.

After atomization, hydrogen reduction/annealing lowers oxygen content and improves compressibility. Compared with reduced iron powder it has higher apparent density and better flow, suiting automated press lines, and is screened into 40–300 mesh cuts by application.

Applications by industry

  1. PM sintered parts — automotive gears, sprockets, bearing caps, oil-pump rotors and other structural parts are the largest outlet, about 70% of all iron-powder applications.
  2. Welding consumables — filler in electrode coatings and flux-cored wire, raising deposition efficiency.
  3. Soft magnetic composites (SMC) — insulation-coated iron powder pressed into inductor cores and compacted cores for EV motors; a growth area tied directly to electrified drivetrains.
  4. Chemical & environmental — zero-valent iron (ZVI) for soil and groundwater remediation, catalysts, heating elements, oxygen absorbers.
  5. MIM & additive manufacturing — fine cuts (−325 mesh and below) feed MIM feedstock and binder-jet 3D printing.

Storage & handling

Standard packing is 25 kg kraft bags with PE liners or steel drums; bulk ships in 500 kg–1 t bags with moisture-barrier liners. Moisture is the main risk — store palletized indoors below 60% RH and reseal promptly after opening. Fine iron powders may fall under UN1383 (pyrophoric) or UN3089 (flammable metal powder) depending on particle size and oxidation state; typical 40–300 mesh reduced/annealed grades ship as non-dangerous goods, but confirm the MSDS and transport classification before shipment.

Market outlook

  • Size — the global atomized iron powder market is projected to grow from about US$1.23 billion in 2025 to US$2.05 billion by 2034 (5.9% CAGR). Asia-Pacific holds about 60% of the market, with China dominating supply.
  • Two sides of the EV transition — demand for engine and gear parts will gradually decline, but EV drivetrain, SMC, and high-efficiency motor-core demand is expected to offset it and drive growth. The soft magnetic materials market is forecast to grow from 11.43 million tonnes in 2026 to 15.97 million tonnes by 2031.
  • Cost environment — 2026 iron-ore prices are expected to be stable-to-soft at US$85–95/tonne, limiting powder price-spike risk and favoring buyers in negotiations.
  • Green manufacturing — low-carbon iron powder linked to hydrogen-reduction green steel is emerging, led by Europe; expect growing carbon-footprint data requests in long-term procurement.

Note for procurement teams

Grade selection

Use Recommended grade
Sintered structural parts Compressibility-specified grade (e.g., −100 mesh, annealed)
Welding electrodes Low-S, low-P grade
SMC / magnetics High-purity fine grade suitable for insulation coating

COA checklist — Fe content (≥99%), C/S/P/O content, particle size distribution (sieve residue), apparent density (AD), Hall flow, compressibility (green density).

Practical tips — nominal mesh alone does not guarantee press-filling behavior; request the actual particle-size distribution curve. For tonne-scale contracts, an iron-ore price-indexation clause captures the soft 2026 outlook, and specifying moisture-proof packing plus desiccant in the contract is the safe move.

TKNCO supplies atomized iron powder (CAS 7439-89-6) with lot-by-lot manufacturer COA. For quotations, we reply within 24 business hours.

This brief summarizes the public sources below for general information and does not guarantee contract prices at any given time.

References