Why is raw material so critical?
Cold forging, machining, or any other method — whichever it is, the final part’s strength cannot exceed the properties of the steel or alloy used. A perfect part cannot be made from bad raw material. That is why material selection is the first and most decisive decision in production.
Materials to avoid
Uncertified steel: Steel of unknown origin and chemical composition is the greatest risk. Without knowing the chemical composition, the part’s heat-treatment behavior and final strength cannot be predicted.
Undefined recycled material: Recycling itself is not the problem — the problem is material from mixed scrap whose content has not been checked. Such material may contain unexpected alloying elements, residues, or inconsistent properties.
Wrong-grade steel: A steel grade unsuitable for the application — for example, using low-carbon steel in a bolt that requires high strength — makes the part defective from the start.
- Steel from a “cheap” supplier with uncertain origin
- Raw material with no mill certificate
- Corroded material with unknown storage conditions
- Alloy that does not match the application requirement
How to choose the right material?
The right material selection starts with three questions: What load will the part carry? (determines the strength grade), In what environment will it operate? (determines corrosion resistance and coating need), Which standards must it meet? (determines grade and certification requirements).
The ANG FAST approach
We accept every raw material entering production with a material certificate. Production does not begin until the steel’s chemical composition and mechanical properties are verified by document. For the right material selection, we advise you according to your project’s requirements — because a good fastener begins with good raw material.