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 name | |
| Grade no. | |
| Heat treatment | quenched and tempered (+QT) |
Properties
Stainless martensitic chromium-nickel-steel with high strength and good toughness. High-gloss polishable. Good corrosion resistance (PREN≈19).
The formation of chromium-depleted areas by improper heat treatment increases the risk for intercrystalline corrosion.
Delivery Condition
- quenched and tempered (+QT)
- quench., tempered, stress relieved (+QT +SR)
- annealed (+A) max. 295 HBW
Application Area
Parts for high mechanical loads in corrosive environment.
Standard material for highly stressed shafts, piston rods and valves in all applications.
Typical Applications
- General mechanical engineering and equipment construction
- Chemical and petrochemical industry
- Nonwovens industry, technical textiles
- Surgical instruments
- Water and wastewater treatment
- Oil and gas industry
| Eigenschaft | Wert |
|---|---|
| Grade name | |
| Grade no. | |
| Heat treatment | quenchend and tempered, stress relieved (+QT +SR) |
Properties
Stainless martensitic chromium-nickel-steel with high strength and good toughness. High-gloss polishable. Good corrosion resistance (PREN≈19).
The formation of chromium-depleted areas by improper heat treatment increases the risk for intercrystalline corrosion.
Delivery Condition
- quenched and tempered (+QT)
- quench., tempered, stress relieved (+QT +SR)
- annealed (+A) max. 295 HBW
Application Area
Parts for high mechanical loads in corrosive environment.
Standard material for highly stressed shafts, piston rods and valves in all applications.
Typical Applications
- General mechanical engineering and equipment construction
- Chemical and petrochemical industry
- Nonwovens industry, technical textiles
- Surgical instruments
- Water and wastewater treatment
- Oil and gas industry
| Eigenschaft | Wert |
|---|---|
| Grade no. | |
| Grade name | |
| Heat treatment | quenched and tempered (+QT) |
Properties
Grade 1.4104 is a heat-treatable martensitic chromium steel. Its excellent machinability is achieved through an increased sulphur content, which reduces its corrosion resistance compared to low-sulphur chromium steels (e.g. 1.4016). It offers a reasonable compromise between mechanical properties, machinability and corrosion resistance. 1.4104 exhibits good magnetic properties.
Delivery Condition
- annealed (+A), max. 220 HBW
- quenched and tempered (+QT)
Application Area
Machining of components requiring a high surface finish but with low corrosion resistance requirements.
Typical Applications
- Screws and nuts
- Automotive
- Mechanical engineering
- Electronic applications
- Decorative elements, e.g. kitchen fittings
| Eigenschaft | Wert |
|---|---|
| Grade name | |
| Grade no. | |
| Heat treatment | annealed (+A) |
Properties
1.4112 is a hardenable, stainless martensitic steel with high wear and corrosion resistance. The grade is similar to S44003 Type 440B acc. to ASTM.
The ESR-variant fulfils highest requirements towards homogeneity and offers superior mechanical properties and service life.
Delivery Condition
- annealed (+A) max. 265 HBW
Application Area
High demands on wear and corrosion resistance.
Typical Applications
- Surgical instruments
- Cutting tools
- Chemical and petrochemical industry
- Food industry
- Fuel injection
| Eigenschaft | Wert |
|---|---|
| Grade name | |
| Grade no. | |
| Heat treatment | spheroid. annealed (+AC) |
Properties
1.4112 is a hardenable, stainless martensitic steel with high wear and corrosion resistance. The grade is similar to S44003 Type 440B acc. to ASTM.
The ESR-variant fulfils highest requirements towards homogeneity and offers superior mechanical properties and service life.
Delivery Condition
- annealed (+A) max. 265 HBW
Application Area
High demands on wear and corrosion resistance.
Typical Applications
- Surgical instruments
- Cutting tools
- Chemical and petrochemical industry
- Food industry
- Fuel injection
| Eigenschaft | Wert |
|---|---|
| Grade name | |
| Grade no. | |
| Heat treatment | quenched and tempered (+QT) |
Properties
1.4122 is a martensitic steel with high wear resistance and good corrosion resistance in environments with low chloride content. The corrosion resistance can be further improved by surface polishing.
Delivery Condition
- annealed (+A) max. 280 HBW
- quenched and tempered (+QT)
Application Area
Parts with high demands on wear and corrosion resistance in chloride-free environments media.
Typical Applications
- Surgical instruments
- Fittings & valves
- Polymer processing
- Cutting tools
| Eigenschaft | Wert |
|---|---|
| Grade name | |
| Grade no. | |
| Heat treatment | quenchend and tempered, stress relieved (+QT +SR) |
Properties
1.4122 is a martensitic steel with high wear resistance and good corrosion resistance in environments with low chloride content. The corrosion resistance can be further improved by surface polishing.
Delivery Condition
- annealed (+A) max. 280 HBW
- quenched and tempered (+QT)
Application Area
Parts with high demands on wear and corrosion resistance in chloride-free environments media.
Typical Applications
- Surgical instruments
- Fittings & valves
- Polymer processing
- Cutting tools
| Eigenschaft | Wert |
|---|---|
| Grade name | |
| Grade no. | |
| Heat treatment | quenched and double tempered (+QDT) |
Properties
1.4122 is a martensitic steel with high wear resistance and good corrosion resistance in environments with low chloride content. The corrosion resistance can be further improved by surface polishing.
Delivery Condition
- annealed (+A) max. 280 HBW
- quenched and tempered (+QT)
Application Area
Parts with high demands on wear and corrosion resistance in chloride-free environments media.
Typical Applications
- Surgical instruments
- Fittings & valves
- Polymer processing
- Cutting tools
| Eigenschaft | Wert |
|---|---|
| Grade no. | |
| Grade name | |
| Heat treatment | annealed (+A) |
| Secondary melting process | ESR |
Properties
1.4125 is a high carbon Cr-Mo-alloyed stainless martensitic steel with very good wear resis-tance due to high hardness compared to other martensitic grades.
Resistance to corrosion is good in non-severe conditions and can be improved by surface polishing.
Available also as ESR-grade (electro-slag remelted quality).
Delivery Condition
- annealed (+A) max. 285 HBW
Application Area
Parts with highest demands on wear resistance in mild corrosive environments.
Typical Applications
- Pumps and valve components
- Bearings
- Surgical instruments
- Knives