NAS200 Fine Non-Annealed Iron Powder
NAS200 is a fine, single-stage reduced, non-annealed iron powder developed for oxygen absorber sachets, disposable hand warmers, heat packs and related reactive formulations. It offers controlled chemical composition, suitable apparent density and a fine particle size profile for formulation and production evaluation.
Product Overview
NAS200 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 fine particle size distribution, chemical composition, apparent density and reaction consistency are important.
Its fine particle profile, including a -25 μm fraction of 33.80 wt%, can support formulation mixing and reaction-performance evaluation 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.
NAS200 Typical Technical Data
Typical reference values for chemical composition, apparent density and particle size distribution. Actual values may vary by production batch. Full TDS and batch COA are available upon request.
Chemical Analysis
Typical iron, carbon, impurity and hydrogen-loss reference values.
| Test Name | Unit | Typical Value |
|---|---|---|
| Fe (Iron) | wt% | 97.27 |
| C (Carbon) | wt% | 0.300 |
| Si (Silicon) | wt% | 0.055 |
| Mn (Manganese) | wt% | 0.043 |
| P (Phosphorus) | wt% | 0.010 |
| S (Sulfur) | wt% | 0.009 |
| HL (Hydrogen Loss) | wt% | 1.730 |
Physical Properties
Typical apparent density for formulation, handling and process evaluation.
| Test Name | Unit | Typical Value |
|---|---|---|
| Apparent Density (Hall) | g/cm³ | 2.77 |
Sieve Analysis
Typical fine particle size distribution for formulation and reaction-performance review.
| Particle Size | Unit | Typical Value |
|---|---|---|
| +75 μm | wt% | 1.60 |
| 45–75 μm | wt% | 34.40 |
| 38–45 μm | wt% | 14.90 |
| 25–38 μm | wt% | 15.20 |
| -25 μm | wt% | 33.80 |
Product Characteristics
Key characteristics for oxygen absorber and heat-pack formulation evaluation.
| Characteristic | Description |
|---|---|
| Non-Annealed Production Route | Produced through a single reduction stage and supplied without secondary reduction or annealing. |
| Fine Particle Profile | A -25 μm fraction of 33.80 wt% provides a fine-particle profile for formulation mixing and reaction-performance evaluation. |
| Controlled Chemistry | Controlled iron, carbon, silicon, manganese, phosphorus, sulfur and hydrogen-loss values support batch and formulation review. |
| Application Evaluation | Suitability should be assessed according to formulation, reaction target, operating conditions and packaging system. |
Need NAS200 Fine 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.