Scope of delivery
In addition to the materials from our stock range and to our articles, we already regularly supply the complete piping program not only in project packages, of course also in C steel and nickel alloys. We go far beyond the standard to make sure you achieve your goals.
Further stainless steels
Stainless (“rustproof”) steel is characterised by a chromium content of more than 10.5%, which must be dissolved in the austenitic or ferritic solid solution. Due to this high chrome content, a protective and dense passive layer of chromium oxide forms on the surface of the material. Other alloy components such as nickel, molybdenum, manganese and niobium lead to an even better corrosion resistance or more favourable mechanical properties.

Heat-resistant
stainless steels
Heat-resistant steels are applied at temperatures of 550°C to 1,150°C. The composition of the heat-resistant steels is chosen in such a way that the scale layer formed by the use impedes the diffusion of the alloying elements and thus protects against further scaling.
This effect is mainly due to the element chromium. Aluminium and silicon also contribute to scaling resistance. A distinction is made between the ferritic steels (alloyed with chromium) and the austenitic steels (alloyed with chromium and nickel).

Nickel alloys
Nickel alloys are materials which are alloyed with at least 30% nickel. They are characterised by extreme corrosion and heat resistance.
Other main components – depending on the demands – are copper, iron, chromium, molybdenum and cobalt.

Alloy steels
Whenever a type of steel, with the exception of the element manganese, does not contain any element with more than 0.5% content, it is described as unalloyed. These materials have a “C” (carbon) – followed by number corresponding to 100 times the average carbon content – in their designation (for example: C 22).
Another variant of naming is that the name is composed first of a letter code describing the application, and then of a number corresponding to one tenth of the tensile strength in N/mm² (for example ST for unalloyed construction steel and 52 for a tensile strength of approximately 520 N/mm² = ST 52).
In case alloy steels do not contain any element >5%, the naming is according to the following rule. One starts with the number corresponding to 100 times the carbon content. Then follow the chemical elements which are the main characteristics of this alloy, followed by numbers which are in the order of the previously mentioned chemical elements and reflect an indication of the content. Each of the elements mentioned is multiplied by different factors (chromium by a factor of 4 and molybdenum by a factor of 10). (For example: 10 CrMo 9-10 means 0.1% C content Cr (chromium) Mo (molybdenum) 9 (9 : 4 = 2.25 chromium) 10 (10 : 10 = 1 molybdenum.)
Whenever the alloy elements are contained >5%, an additional “X” is placed in front of the “C” code.


Stock range
Haven’t found the right steel?
Have you already taken a look at our stock range? There we have another 7 special and standards stainless steels ready for you, which we are in addition able to deliver within 24 hours.

Machine shop
The currently shortest available delivery time in Germany.
Fast and custom-made: special solutions from our machining centre.