High Temperature Steels, Feature : Corrosion resistance, oxidation resistance

Listing ID #725542

We have high temperature steels.
Send inquiry owing to its higher resistance to chemical and mechanical degradation at elevated temperatures, high temperature steels is extensively demanded in the market. Due to their characteristics such as corrosion resistance, oxidation resistance, hydrogen brittleness and creep resistance these are ideal choice for high temperature working environments.
The steel is classified on the basis of its micro-structure, which can be ferritic-austenitic (duplex), ferritic, austenitic and martensitic. The structure of steel grade is determined by its chemical composition.
Classification of stainless steel steel grades properties fields of application
ferritic stainless steel wnr. 1.4000
wnr. 1.4016
wnr. 1.4512
wnr. 1.4113
etc.
ferritic grades are plain chromium grades (chromium content: 11-17%).�
they are ferromagnetic.
welding is only under certain conditions.
they are easily forged, cold worked and hot worked. They have good machinability.�
the ferritic stainless steels cannot be used for any reducing or organic acids such as oxalic, formic and lactic, however, it is used where conditions are less aggressive, for handling nitric acid and many organic chemicals in moderately corrosive media.�
wnr. 1.4016 has good corrosion resistance in the standard environment and at low chloride concentration, e.g. Households and natural water. This steel grade is not sea water resistant! it is resistant to intergranular corrosion. In general, wnr. 1.4016 is poorly suited to welding processes. The material has a good cold formability. For temperatures over 400 �c not recommended.
soap industry
automotive application
cutlery
household utensils
manufacture of machines and instruments that are exposed to water and water vapor in the long term
food industry
manufacture of surgical instruments
agriculture�
construction industry
martensitic stainless steel wnr. 1.4006
wnr. 1.4021
wnr. 1.4028
wnr. 1.4057
wnr. 1.4034
etc.
martensitic steel contain mostly 12 to 18% chromium.
carbon contet: 0,10-0,44 %
these materials are ferromagnetic.
martensitic steel can be tempered and hardened by heat-treating.
welding: not suitable or only under specific conditions.
the welding of wnr. 1.4057, 1.4021 and 1.4028 is only permitted if certain precautions were made.
for welded structures they are not recommended. Wnr. 1.4034 is not suitable for welding.
these steel grades have good ductility and good polishing ability.
the martensitic grades are mainly used where hardness, strength and wear-resistance is required.
martensitic grades are not corrosion resistant. However, molybdenum can improve their corrosion resistance.
wnr. 1.4006 is suitable for welding. A subsequent heat treatment is generally required. If it is not performed the corrosion resistance of the steel will be reduced.
manufacture of components, devices and instruments that are exposed to large mechanical stresses (e.g. Knife)
turned parts
manufacture of surgical instruments and gauges
wear resistant tools for the chemical and food industry.