For all operating conditions
A corrosive environment, plus high operating temperatures and demanding mechanical loads? Our stainless acid- and heat-resistant steels are the right choice for your application.
The range of applications is diverse and extends from the chemical and petrochemical industry to mechanical engineering and the onshore and offshore sector. But also in energy and environmental technology, medical technology or the food industry, our stainless and heat-resistant steels meet the highest mechanical and corrosion-chemical requirements.
Highest purity and audited heat treatment processes
Whether austenite, ferrite, martensite or duplex steel - the optimised chemical composition of our grades combined with high purity and a defined heat treatment (CQI9 / API 6a) guarantee homogeneous properties and long-lasting products.
For the highest requirements, remelting is possible via our modern ESR, PESR and VAR remelting units.
Materials and areas of application
| Eigenschaft | Wert |
|---|---|
| Grade no. | |
| Grade name | |
| Secondary melting process | - |
| Heat treatment | solution annealed (+AT) |
Properties
1.4305 is an austenitic Cr-Ni steel with added sulfur for optimal machinability (free-cutting steel).
Due to the sulfur addition, corrosion resistance in acidic and chloride-containing media is limited; however, the steel is resistant to steam up to 400 °C.
Due to its susceptibility to hot cracking, 1.4305 should not be welded.
Delivery Condition
- solution annealed (+AT) max. 230 HBW
Application Area
Machined components for use in mildly to moderately corrosive environments.
Typical Applications
- Automotive industry
- Valves and fittings
- Mechanical and plant engineering
- Decorative elements
| Eigenschaft | Wert |
|---|---|
| Grade no. | |
| Grade name | |
| Grade name | |
| Secondary melting process | - |
| Heat treatment | solution annealed (+AT) |
Properties
1.4543 is a precipitation hardenable chromium-nickel-steel with high corrosion resistance.
The grade is treated by vacuum induction melting and vacuum arc remelting technology for highest cleanliness.
The corrosion resistance can be further improved by surface polishing.
Delivery Condition
- solution annealed (+AT), max. 331 HBW
- solution annealed and cold drawn
Application Area
High mechanical loads (stress and wear) in corrosive environments.
Typical Applications
- Surgical instruments
- Dental drills
- Cutting tools
- Mechanical engineering
| Eigenschaft | Wert |
|---|---|
| Grade name | |
| Grade no. | |
| Secondary melting process | - |
| Heat treatment | annealed (+A) |
Properties
1.4123 is a nitrogen-alloyed, hardenable stainless martensitic steel with good corrosion resistance.
The ESR-variant fulfills highest requirements towards homogeneity and cleanliness and offers outstanding grindability and polishability.
Delivery Condition
- annealed (+A) max. 255 HBW
- quenched and tempered (+QT) upon request
Application Area
High demands on wear and corrosion resistance as well as on cutting edge retention.
High surface qualities.
Typical Applications
- Surgical instruments
- Fuel injections systems
- Cutting tools
- Ball and roller bearings
| Eigenschaft | Wert |
|---|---|
| Grade no. | |
| Grade name | |
| Heat treatment | annealed (+A) |
| Secondary melting process | PESR |
Properties
1.4108 is a nitrogen-alloyed, heat-treatable martensitic Cr steel with high corrosion resistance and good toughness. The nitrogen content is set during electro-slag remelting (PESR), which produces a uniform, homogeneous microstructure of very high purity with finely distributed carbonitrides. These microstructural properties form the basis for the excellent polishability and high wear resistance of 1.4108.
Delivery Condition
- annealed (+A), max. 255 HBW
Supply form
- Bright bars, annealed, peeled h9, grinding to h6 optional
- Diameter Ø 5-30 mm
- Length 3 000 - 6 000 mm
Application Area
Corrosively stressed workpieces requiring high edge retention.
Applications with high demands on surface quality. Components with high wear resistance, especially for use under high and alternating pressure loads.
Typical Applications
- Medical technology (needles, dental drills, instruments)
- Knife industry
- Ball screws
- Tabletting tools
-Motor and drive technology
-Automotive
- Mould making
- Roller components
- Marine technology
| Eigenschaft | Wert |
|---|---|
| Grade no. | |
| Grade name | |
| Grade name | |
| Secondary melting process | - |
| Heat treatment | annealed (+A) |
Properties
AISI 440A is a Cr-Mo-alloyed stainless martensitic steel with good hardenability and excellent wear resistance.
Delivery Condition
- annealed (+A)
Application Area
High demands on wear as well as on cutting edge retention. High surface qualities.
Typical Applications
- Surgical instruments
- Fuel injections systems
- Cutting tools
- Ball and roller bearings
| Eigenschaft | Wert |
|---|---|
| Grade no. | |
| Grade name | |
| Grade name | |
| Secondary melting process | - |
| Heat treatment | solution annealed (+AT) |
Properties
1.4310 is an austenitic Cr-Ni steel with good corrosion resistance (PREN ≈ 18). The formation of chromium-depleted areas as a result of additional heat treatment beyond the as-supplied condition creates a risk of intergranular corrosion.
Polishing the surface achieves the best possible corrosion resistance.
During cold forming, the material work-hardens through the transformation of metastable austenite into martensite; this reduces its resistance to corrosion.
Delivery Condition
- solution annealed (+AT)
Application Area
Used in the cold-formed state in spring components with operating temperatures of up to 300 °C.
Typical Applications
- Spring components
- Clamping springs (electrical industry)
- Food industry
- Stamped and deep-drawn parts
| Eigenschaft | Wert |
|---|---|
| Grade no. | |
| Grade name | |
| Grade name | |
| Secondary melting process | - |
| Heat treatment | annealed (+A) |
Properties
1.4197 is a martensitic 13% Cr steel. Its corrosion resistance is increased by alloying with Mo and Ni and can be further improved by surface polishing.
Good machinability is achieved through the addition of sulphur.
Delivery Condition
- annealed (+A)
Application Area
High-precision automatic turned parts (Escomat production) with requirements for wear and corrosion resistance.
Typical Applications
- Surgical instruments
- Milling cutters and drills in dental technology
- Watch industry
| Eigenschaft | Wert |
|---|---|
| Grade name | |
| Grade no. | |
| Grade name | |
| Heat treatment | solution annealed (+AT) |
Properties
1.3401 X120Mn12 is an austenitic hard manganese steel. Work hardening of the surface under mechanical stress greatly increases the wear resistance and surface hardnesses of up to 500 HB are achieved, while the core remains tough.
Delivery Condition
- Solution annealed (+AT)
Application Area
Components with high mechanical impact and shock loads.
Typical Applications
- Security technology (safes, bolts)
- Protective grilles, prison bars
- Crusher jaws and hammers
- Baffle plates
- Blasting systems