Technical resources
Written for people who run galvanizing plants, not for search engines. Every claim is referenced to a standard clause.
Guide
The weld is the weakest link
Weld metal often carries several times the silicon of the parent plate — and dissolves faster. Why kettles fail at the seam while the wall is still thick.
Read more →GuideWhat actually determines kettle life
Suppliers quote 3 to 10 years. The spread is not about the kettle — it is about heat input density, bath temperature and the first 48 hours. With the numbers.
Read more →GuideThe 24-hour hold at 330 °C
The first firing decides more about kettle life than the manufacturing did. The full heat-up schedule, the loading rules, and why the hold is not optional.
Read more →Also worth reading
- Why silicon matters more than strength — and why there is no equivalent EN or ASTM grade for kettle plate
- Sizing a kettle — depth from width, zinc volume from throughput
- CBAM for EU buyers — CN 7309 is in scope, and one kettle can cross the 50-tonne threshold on its own
- Standards mapping — GB/T 11345-2023 is an identical adoption of ISO 17640:2018