Steel Powder for Hand Warmers and Deoxidizers
Steel powder from Kobe Steel is used in many situations in our daily lives due to its oxygen absorption and continuous heat generation properties.
Here we introduce some of the possibilities of steel powder which are still continuing to broaden.
Features
Key Lineup
| Steel grade name | Features |
|---|---|
| 70KA | Small particle size and high reactivity |
| 70KB | Medium particle size and intermediate performance |
| 80AF | Large particle size and sustained reactivity |
Relationship between Hand Warmers and Steel Powder
Everyone has probably had the experience of leaving something made from iron wet and having it rust.
Why does iron rust when it gets wet?
When iron gets wet, a chemical reaction (oxidization) occurs on the surface, where the oxygen in the air and in the water react with the iron to form iron oxide (ferric hydroxide), which is the component of rust. A heating pad utilizes the heat that is generated when this chemical reaction occurs.
- Sustained reactivity
Steel powder from Kobe Steel is renowned for its characteristic ability to continually generate heat for longer periods.
Relationship between Food and Oxygen Absorber (Steel Powder)
In the packaging for the bread and snacks you regularly eat, you may have seen small packages with the warning "DO NOT EAT" along with the label "Oxygen Absorber."
Did you know that this oxygen absorber also demonstrates the power of steel powder from Kobe Steel?
Using one of the characteristics of iron to "absorb oxygen," having steel powder absorb the oxygen inside food packaging suppresses food oxidization, helping the food we eat stay delicious for longer periods.
Applications
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