Typical applications
- Heat exchangers
- Flanges and valves
Outokumpu Supra Edelstahlgüten
Supra 316/4401 stainless steel
Supra 316/4401 is a widely used Molybdenum alloyed austenitic stainless steel. It’s an all-purpose product with very good corrosion resistance and is suitable for a wide variety of applications that require good formability and weldability. Supra 316/4401 can be delivered with a variety of surface finishes.
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- EN: 1.4401
- ASTM type: 316
- ASTM UNS: S31600
- Microstructure: Austenitic
Chemical composition
- C: 0.04
- Cr: 17.2
- Ni: 10.1
- Mo: 2.1
- N: -
- Others : -
Supra 316L/4404 stainless steel
Supra 316L/4404 is a low-carbon alternative to Supra 316/4401. The lower carbon content minimizes carbide precipitation as a result of heat input, for example during welding, giving improved resistance against intergranular corrosion.Supra 316L/4404 is suitable for a wide variety of applications that require good formability and weldability, and can be delivered with a variety of surface finishes.
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- EN: 1.4404
- ASTM type: 316L
- ASTM UNS: S31603
- Microstructure: Austenitic
Typical applications
- Chemical industry
- Petrochemical industry
- Pulp and paper industry
- Textile industry
- Food and beverage industry
- Pharmaceutical industry
- Medical applications
- Flanges and valves
Chemical composition
- C: 0.02
- Cr: 17.2
- Ni: 10.1
- Mo: 2.1
- N: -
- Others : -
Supra 316LN/4406 stainless steel
316L suitable for low temperatures
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- EN: 1.4406
- ASTM type: 316LN
- ASTM UNS: S31653
- Microstructure: Austenitic
Typical applications
- Cryogenic tank
Product forms
Chemical composition
- C: 0.02
- Cr: 17.2
- Ni: 10.3
- Mo : 2.1
- N: 0.14
- Others : -
Supra 316plus stainless steel
Supra 316plus is the highest strength stainless steel in the Supra range. It is a cost-efficient, 21Cr lower-nickel/molybdenum alternative to traditional molybdenum austenitics like Supra 316L. This product has good formability, excellent weldability, and is usable in cryogenic applications.
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- EN: 1.4420
- ASTM type : -
- ASTM UNS: S31655
- Microstructure: Austenitic
Typical applications
- Process and transport tanks
- Water treatment and pipes
- Heat exchangers
- Architectural applications
Chemical composition
- C: 0.02
- Cr: 20.3
- Ni: 8.6
- Mo: 0.7
- N: 0.19
- Others : -
Supra 316L/SANS4402 stainless steel
Supra 316L/SANS4402 is a high-strength, high-formability product often used in container transports and where there is an elevated temperature requirement.
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- SANS: 1.4402
- ASTM type: -
- ASTM UNS: -
- Microstructure: Austenitic
Typical applications
• Container tanks
Chemical composition
- C: 0.02
- Cr: 17.2
- Ni: 10.1
- Mo: 2.1
- N: -
- Others: -
Supra 316/4436 stainless steel
Supra 316/4436 is a product with high resistance to non-oxidizing acids and chloride-containing media due to higher molybdenum content. It has good formability and weldability.
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- EN: 1.4436
- ASTM type: 316
- ASTM UNS: S31600
- Microstructure: Austenitic
Typical applications
- Pulp and paper industry equipment
- Pharmaceutical industry equipment
- Flanges and valves
Chemical composition
- C: 0.04
- Cr: 16.9
- Ni: 10.7
- Mo: 2.6
- N: -
- Others: -
Supra 316L/4435 stainless steel
Supra 316L/4435 is a alternative to 316L/4404 with higher molybdenum and nickel content for enhanced corrosion resistance and formability.
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- EN: 1.4435
- ASTM type: 316L
- ASTM UNS: S31603
- Microstructure: Austenitic
Typical applications
- Urea plants
- Pulp and synthetic fiber plants
- Flanges and valves
- Cryogenic
- Hydrogen
Chemical composition
- C: 0.02
- Cr: 17.3
- Ni: 12.6
- Mo : 2.6
- N: -
- Others : -
Supra 316Ti/4571 stainless steel
Supra 316Ti/4571 is a titanium-stabilized alternative to Supra 316L/4404 – mainly used in Germany for elevated temperature applications. Due to its titanium-stabilization this product is weldable in all thickness ranges.
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- EN: 1.4571
- ASTM type: 316Ti
- ASTM UNS: S31635
- Microstructure: Austenitic
Usage
- Flue gas applications
- Flanges and valves
Chemical composition
- C: 0.04
- Cr: 16.8
- Ni: 10.9
- Mo: 2.1
- N: -
- Others: Ti
Supra 4429 stainless steel
A special 316L with increased content of Nitrogen and Molybdenum
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- EN: 1.4429
- ASTM type: 316LN
- ASTM UNS: S31653
- Microstructure: Austenitic
Typical applications
- Pharmaceutical
- Chemical
- Petrochemical
- Cryogenic
- Cellulose
- Food processing industries
- Hydrogen
Product forms
Chemical composition
- C: 0.02
- Cr: 17.2
- Ni: 12.2
- Mo: 2.6
- N: 0.15
- Others: -
Supra 724L stainless steel
A modified version of 4435 for Urea applications
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- EN: 1.4435
- ASTM type: 316L
- ASTM UNS: S31603
- Microstructure: Austenitic
Typical applications
- Urea reactors
Product forms
Chemical composition
- C: 0.02
- Cr: 17.3
- Ni: 12.6
- Mo: 2.6
- N: -
- Others: -
Supra 444/4521 stainless steel
Supra 444/4521 is a nickel-free molybdenum-alloyed ferritic stainless steel with very good corrosion resistance, good cold formability and high strength. It allows for thinner walls in tanks and is not prone to stress corrosion cracking.
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- EN: 1.4521
- ASTM type: 444
- ASTM UNS: S444000
- Microstructure: Ferritic
Typical applications
- Hot water tanks
- Drinking water pipes
Chemical composition
- C: 0.02
- Cr: 18.0
- Ni: -
- Mo: 2.04
- N: -
- Others: Nb,Ti
Circle Green Supra 316L/4404 stainless steel
Circle Green Supra 316L/4404 is a low-carbon alternative to Supra 316/4401. The lower carbon content minimizes carbide precipitation as a result of heat input, for example during welding, giving improved resistance against intergranular corrosion. Circle Green Supra 316L/4404 is suitable for a wide variety of applications that require good formability and weldability, and can be delivered with a variety of surface finishes.
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- EN: 1.4404
- ASTM type: 316L
- ASTM UNS: S31603
- Microstructure: Austenitic
Typical applications
- Chemical industry
- Petrochemical industry
- Pulp and paper industry
- Textile industry
- Food and beverage industry
- Pharmaceutical industry
- Medical applications
- Flanges and valves
Chemical composition
- C: 0.02
- Cr: 17.2
- Ni: 10.1
- Mo: 2.1
- N: -
- Others : -
Supra
Die Supra-Kategorie umfasst austenitische und ferritische Edelstahlgüten für durchschnittlich bis stark korrosive Umgebungen im PRE-Bereich 22–26.
Die am weitesten verbreitete austenitische Edelstahlsorte mit Molybdänlegierung, Supra 316L/4404 (EN 1.4404), bestimmt das Gesamtbild der Supra-Kategorie. Die Supra-Kategorie wird durch eine moderne, stabilisierte, molybdänlegierte, nickelfreie, ferritische Edelstahlvariante mit einem Chromgehalt von 18 %, Supra 444/4521 (EN 1.4521), ergänzt.
Die neueste Ergänzung der Supra-Kategorie ist die austenitische Edelstahlsorte Supra 316plus/4420 (EN 1.4420). Dank des höheren Chrom- und Stickstoffgehalts weist Supra 316plus im Vergleich zum 316L eine höhere Korrosionsbeständigkeit und Festigkeit auf.
Austenitische Cr-Ni-Mo-Edelstähle der Supra-Kategorie verfügen über exzellente Korrosionsbeständigkeit, Schweiß- und Umformeigenschaften, insbesondere Streckzieheigenschaften. Austenitische Stähle weisen eine sehr hohe Verformbarkeit auf, und zwar bis hinunter zu kryogenen Temperaturen. Aufgrund der höheren Zähigkeit und Kaltverfestigung der austenitischen Edelstähle ist bei der Umformung und Bearbeitung im Vergleich zu ferritischen Edelstählen oder Kohlenstoffstählen besondere Vorsicht geboten.
Der moderne ferritische, molybdänlegierte Edelstahl der Supra-Kategorie, Supra 444/4521, verfügt über eine ausgezeichnete Korrosionsbeständigkeit und hervorragende Schweiß- und Tiefzieheigenschaften. Die nickelfreien ferritischen Edelstähle bieten eine hervorragende Beständigkeit gegen chloridinduzierte Spannungsrisskorrosion. Ferritische Edelstähle haben gute Wärmeübertragungseigenschaften, die in Anwendungen genutzt werden können, in denen eine gleichmäßige und schnelle Wärmeübertragung bevorzugt wird. Eine gute Wärmeübertragung mit geringerer Wärmeausdehnung erleichtert die Schweißbarkeit durch einen geringeren Schweißverzug und ein geringeres Ausbeulverhalten als austenitische Edelstähle. Außerdem sind ferritische Stähle aufgrund ihrer geringen Kaltverfestigung ähnlich gut bearbeitbar wie Kohlenstoffstähle.
Die Güten der Supra-Kategorie können in einer Vielzahl von Anwendungen eingesetzt werden, die durch eine breite Auswahl an Oberflächenausführungen von Walzwerken und Servicecentern unterstützt werden.
Standards und Zulassungen für die Kategorie Supra
| EN ISO 18286 | Hot-rolled stainless steel plates – Tolerances on dimensions and shape |
| EN 10051 | Hot-rolled steel strip. |
| EN 10088-1 | Stainless steels – list of stainless steels |
| ISO 15510 | Stainless steels – chemical composition |
| EN ISO 9445 | Cold-rolled stainless narrow strip, wide strip, plate/sheet and cut lengths. |
| ASTM A 480 | General requirements for flat-rolled stainless and heat resisting steel |
| ASTM A 959 | Harmonized standard grade compositions for wrought stainless steels |
| ASME IID | Materials – Physical properties tables |
| EN 10028-7 | Flat products for pressure purposes – Stainless steels |
| EN 10088-2 | Stainless steels – sheet/plate and strip for general purposes |
| EN 10088-3 | Stainless steels – semi-finished products, bars, rods sections for general purposes |
| EN 10088-4 | Technical delivery conditions for sheet/plate and strip |
| EN 10088-5 | Technical delivery conditions for bars, rods wire, sections and bright products of corrosion resisting steels for construction purposes |
| EN 10095 | Heat resisting steels and nickel alloys |
| EN 10151 | Stainless steel strip for springs |
| EN 10302 | Creep resisting steels, nickel and cobalt alloys |
| ASTM A 167 | Stainless and heat-resisting Cr-Ni steel plate, sheet, and strip |
| ASTM A 176 | Stainless and heat-resisting Cr steel plate, sheet, and strip |
| ASTM A 240 | Cr and Cr-Ni stainless steel plate, sheet and strip for pressure vessels |
| ASTM A276 | Stainless steel and heat resisting steel bars and shapes |
| ASTM A479/479M | Stainless steel bars for boilers/pressure vessels |
| ASTM A493 | Stainless steel and heat-resisting steel rod and wire for cold heading and forging |
| ASTM A555 | General requirements for stainless and heat resistant steel wire and wire rod |
| ASTM A 666 | Austenitic stainless steel sheet, strip, plate, bar for structural and architectural applications |
| ASME IIA | Materials. Part A – Ferrous Material Specifications |
Outokumpu meets the most common certifications and approvals around the world, including:
- AD 2000 Merkblatt
- Approval of Material Manufacturers
- Factory Production Control Certificate
- ISO 9001
- ISO 14001
- ISO 50001
- ISO/TS 16949
- NORSOK
- OHSAS 18001