NAR100 Non-Annealed Iron Powder
NAR100 is a single-stage reduced, non-annealed iron powder developed for oxygen absorber sachets, disposable hand warmers, heat packs and related reactive formulations. It provides high metallic iron content, controlled particle size distribution, suitable apparent density and stable powder characteristics for formulation and production evaluation.
Product Overview
NAR100 is produced through a single reduction stage and supplied without secondary reduction or annealing. It is intended for oxygen absorber and heat-generating formulations where metallic iron content, particle size distribution, apparent density, flowability and reaction consistency are important.
Its controlled particle size distribution and high metallic iron content can support stable formulation mixing and controlled oxidation behavior when combined with suitable carbon materials, salts, moisture-retaining ingredients and packaging systems.
The grade can be reviewed according to the target oxygen absorption rate, heating profile, operating duration, powder dosage, formulation ingredients and packaging requirements.
NAR100 Typical Technical Data
Typical reference values for chemical composition, physical properties and particle size distribution. Actual values may vary by production batch. Full TDS and batch COA are available upon request.
Chemical Analysis
Typical total iron, metallic iron, chemical composition and hydrogen-loss values.
| Test Name | Unit | Typical Value | Specification |
|---|---|---|---|
| TFe (Total Iron) | wt% | 97.050 | ≥96.00 |
| MFe (Metallic Iron) | wt% | 90.500 | ≥90.00 |
| C (Carbon) | wt% | 0.170 | ≤0.40 |
| Si (Silicon) | wt% | 0.190 | ≤0.20 |
| Mn (Manganese) | wt% | 0.410 | ≤0.50 |
| P (Phosphorus) | wt% | 0.022 | ≤0.030 |
| S (Sulfur) | wt% | 0.016 | ≤0.030 |
| HL (Hydrogen Loss) | wt% | 1.610 | ≤2.00 |
Physical Properties
Typical flow rate and apparent density for formulation, handling and process evaluation.
| Test Name | Unit | Typical Value | Specification |
|---|---|---|---|
| Flow (Hall) | s/50 g | 43.300 | ≤52 |
| Apparent Density (Hall) | g/cm³ | 2.77 | 2.40–2.90 |
Sieve Analysis
Typical particle size distribution for formulation and reaction-performance review.
| Particle Size | Unit | Typical Value | Specification |
|---|---|---|---|
| +180 μm | wt% | 0.0 | ≤1.0 |
| 150–180 μm | wt% | 2.5 | ≤5.0 |
| 105–150 μm | wt% | 19.2 | bal. |
| 75–105 μm | wt% | 25.6 | bal. |
| 53–75 μm | wt% | 20.7 | bal. |
| -53 μm | wt% | 32.0 | 30–49 |
Need NAR100 Non-Annealed Iron Powder?
Send us your oxygen absorber or heat-pack application, target reaction rate, oxygen absorption requirement, heating profile, operating duration, formulation, particle size requirement and quantity. Our team will review your requirements and recommend a suitable non-annealed iron powder option.