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Close your eyes, have a break and enjoy a relaxing bath thanks to our steel

Apart from building hotels' facades, load-bearing structures or wall supports, did you know that our steel is also used to manufacture bathtubs, shower trays and washbasins? For decades, German company KALDEWEI has been relying on ArcelorMittal's enamelled steel to produce its high-quality bathroom solutions.

ArcelorMittal steel brings value to the customer

KALDEWEI, a family-owned company founded in 1918, has been in partnership with ArcelorMittal for over 40 years. The company deliberately relies on production at its Ahlen site throughout its entire value-added chain. "This fits in well with the ArcelorMittal strategy with its enamelled steel production mills in Ghent and Eisenhüttenstadt," says Thomas Quattelbaum, ArcelorMittal Key Account Manager, in charge of the customer for 29 years.

ArcelorMittal’s enamelled steel presents numerous benefits for customers:

  • Development of new parts with complex shapes that are difficult to stamp at present.
  • Reduction in the current scrap rates on some parts that are difficult to stamp. Scrap rates can be reduced by 10% using DC07EK.
  • Lower process costs:
  • One step less in the deep drawing process
  • No additional oiling
  • Lower reworking costs
  • Increased production rates and flexibility

All these advantages reduce the total cost of ownership over the whole value chain.

100% made in Germany

KALDEWEI is the only bathroom manufacturer to produce its enamel itself in its own smelter using a secret recipe. The company processes steel with other natural raw materials to create its unique and patented steel enamel. The result combines the valuable properties of steel such as hardness, high strength and durability with the requirements for washbasins and shower trays. Steel and enamel bind together to form an inseparable unit that stands for stability and durability. The secret recipe also ensures a highly impact and scratch resistant high-tech surface that quickly adapts to the water temperature, making lying in the bathtub as comfortable as possible.

All production is built into a fully integrated value chain based at their headquarters in Ahlen. From there, KALDEWEI exports its bathroom solutions with a "made in Germany" quality seal to the whole world.


KALDEWEI is a family business with deep roots: now being run by the fourth generation of the family it has always remained loyal to the place where everything began. The company develops, manufactures and supervises everything exclusively in Ahlen, Westphalia.
As a leading international manufacturer of high-quality shower surfaces, bathtubs and washbasins made of superior steel enamel, KALDEWEI is represented in more than 80 countries including 12 subsidiaries in Austria, China, Czech Republic, France, Italy, Poland, Russia, Southeast Asia, Spain, the UK and the USA. Project decision-makers and private builders throughout the world appreciate the many advantages offered by superior KALDEWEI steel enamel which is used in numerous top-class hotels.


Image copyright: DORMERO Hotel AG