- Cargo tanks in chemical tankers
- Pulp and paper industry applications such as digesters and process tanks
- Oil and gas industry applications such as flanges, tubes, and pipes
- Structural components in bridges
- Flanges and valves
Outokumpu Forta grades
Forta DX 2205
The most popular duplex product on the market. Offers very good resistance to uniform and localized corrosion and stress corrosion cracking in combination with high mechanical strength.
Per aggiungere un altro elemento, devi prima escludere questo dal confronto
- EN: 1.4462
- ASTM type: -
- ASTM UNS: S32205
- Microstructure: Duplex
- C: 0.02
- Cr: 22.4
- Ni: 5.7
- Mo: 3.1
- N: 0.17
- Others: -
Forta LDX 2101
A lean-alloyed duplex product with good resistance to localized and uniform corrosion, as well as stress corrosion cracking, making it a good substitute for coated carbon steel in e.g. structural components and storage tanks. Also offers high mechanical strength and good machinability.
Per aggiungere un altro elemento, devi prima escludere questo dal confronto
- EN: 1.4162
- ASTM type: -
- ASTM UNS: S32101
- Microstructure: Duplex
- Storage tanks
- Household heaters
- Structural components for floodgates and bridges, or rebar for concrete structures
- Pulp and paper industry applications such as digesters and components for paper machines
- Flanges and valves
- C: 0.03
- Cr: 21.5
- Ni: 1.5
- Mo: 0.3
- N: 0.22
- Others : 5 Mn Cu
Forta DX 2304
A duplex product with a leaner alloying composition than Forta DX 2205. It has good resistance to localized and uniform corrosion, as well as stress corrosion cracking, combined with high mechanical strength.
Per aggiungere un altro elemento, devi prima escludere questo dal confronto
- EN: 1.4362
- ASTM type: -
- ASTM UNS: S32304
- Microstructure: Duplex
- Pulp and paper industry applications
- Blast walls on oil platforms
- Flanges and valves
- C: 0.02
- Cr: 23.0
- Ni: 4.8
- Mo: 0.3
- N: 0.10
- Others: Cu
Forta EDX 2304
An enhanced version of Forta DX 2304 with better corrosion resistance and higher mechanical strength.
Per aggiungere un altro elemento, devi prima escludere questo dal confronto
- EN: 1.4362
- ASTM type: -
- ASTM UNS: S32304
- Microstructure: Duplex
- Offshore topside structural components
- Tank applications
- Flanges and valves
- C: 0.02
- Cr: 23.8
- Ni: 4.3
- Mo: 0.5
- N: 0.18
- Others: Cu
Forta LDX 2404
A low-nickel, high-nitrogen duplex product with higher mechanical strength than Forta DX 2205. Offers very good resistance to localized and uniform corrosion, as well as stress corrosion cracking.
Per aggiungere un altro elemento, devi prima escludere questo dal confronto
- EN: 1.4662
- ASTM type: -
- ASTM UNS: S82441
- Microstructure: Duplex
- Storage tanks
- Structural components for flood and sluice gates
- Mining industry applications such as dewatering equipment
- Flanges and valves
- C: 0.02
- Cr: 24.0
- Ni: 3.6
- Mo: 1.6
- N: 0.27
- Others: 3Mn Cu
Forta SDX 100
A super duplex product with higher corrosion resistance and mechanical strength than Forta DX 2205. Often used in extremely corrosive environments such as desalination, chemical, or offshore subsea applications.
Per aggiungere un altro elemento, devi prima escludere questo dal confronto
- EN: 1.4501
- ASTM type: -
- ASTM UNS: S32760
- Microstructure: Duplex
- Desalination plants
- Industrial piping
- Scrubbers
- Tubular products for oil and gas applications
- Deep-sea pipelines
- Flanges and valves
- C: 0.02
- Cr: 25.4
- Ni: 6.9
- Mo: 3.8
- N: 0.27
- Others: W Cu
Forta SDX 2507
A super duplex product with higher corrosion resistance and mechanical strength than Forta DX 2205. Often used in extremely corrosive environments such as desalination, chemical, or offshore subsea applications.
Per aggiungere un altro elemento, devi prima escludere questo dal confronto
- EN: 1.4410
- ASTM type: -
- ASTM UNS: S32750
- Microstructure: Duplex
- Desalination plants
- Industrial piping
- Scrubbers
- Tubular products for oil and gas applications
- Deep-sea pipelines
- Flanges and valves
- C: 0.02
- Cr: 25
- Ni: 7.0
- Mo: 4.0
- N: 0.27
- Others: -
Forta H400
Forta H400 has higher strength than standard 304/4301 and a lower nickel content, making it a cost-effective and lightweight austenitic product for the automotive industry. It has been used in automotive applications for over 10 years.
Per aggiungere un altro elemento, devi prima escludere questo dal confronto
- EN: 1.4376
- ASTM type: -
- ASTM UNS: -
- Microstructure: Austenitic
- Cross members
- Strut domes
- Bumpers
- C: 0.04
- Cr: 17.5
- Ni: 4.0
- Mo: -
- N: 0.20
- Others: 6.8Mn
Forta 430/4016
A classic 16% chromium ferritic stainless steel used in mildly corrosive environments.
Per aggiungere un altro elemento, devi prima escludere questo dal confronto
- EN: 1.4016
- ASTM type: 430
- ASTM UNS: S43000
- Microstructure: Ferritic
- Automotive components
- Structural applications
- Tanks
- C: 0.05
- Cr: 16.2
- Ni: -
- Mo: -
- N: -
- Others: -
Forta 301LN/4318
A low-carbon, nitrogen alloyed alternative to Forta 301/4310.
Per aggiungere un altro elemento, devi prima escludere questo dal confronto
- EN: 1.4318
- ASTM type: 301LN
- ASTM UNS: S30153
- Microstructure : Austenitic
- Vehicle chassis
- Profiles
- C: 0.02
- Cr: 17.7
- Ni: 6.5
- Mo: -
- N: 0.14
- Others: -
Forta 301/4310
A lower chromium and nickel alternative to Forta 304/4301 with high work hardening capacity.
Per aggiungere un altro elemento, devi prima escludere questo dal confronto
- EN: 1.4310
- ASTM type: 301
- ASTM UNS: S30100
- Microstructure: Austenitic
- Automotive components
- Cable connectors
- Springs
- Window frames
- Commercial appliances
- C: 0.10
- Cr: 17.0
- Ni: 7.0
- Mo: -
- N: -
- Others: -
Forta 304/4301
Forta 304/4301 is a classic 18% chromium, 8% nickel austenitic stainless steel. It’s an all-purpose product with good corrosion resistance and is suitable for a wide variety of applications.
Per aggiungere un altro elemento, devi prima escludere questo dal confronto
- EN: 1.4301
- ASTM type: 304
- ASTM UNS: S30400
- Microstructure: Austenitic
- Beer kegs
- Cutlery
- Automotive components
- Tanks and vessels
- Furniture
- Structural applications
- C: 0.04
- Cr: 18.1
- Ni: 8.1
- Mo: -
- N: -
- Others: -
Forta 304L/4307
Forta 304L/4307 is a low-carbon alternative to Forta 304/4301 and is suitable for a wide variety of applications.
Per aggiungere un altro elemento, devi prima escludere questo dal confronto
- EN: 1.4307
- ASTM type: 304L
- ASTM UNS: S30403
- Microstructure: Austenitic
- Beer kegs
- Cutlery
- Automotive components
- Tanks and vessels
- Furniture
- Structural applications
- C: 0.02
- Cr: 18.1
- Ni: 8.1
- Mo: -
- N: -
- Others: -
Forta 316/4401
A normal-carbon alternative to Forta 316L/4404 that is widely used for various applications.
Per aggiungere un altro elemento, devi prima escludere questo dal confronto
- EN: 1.4401
- ASTM type: 316
- ASTM UNS: S31600
- Microstructure: Austenitic
- Automotive components
- Tanks and vessels
- C: 0.04
- Cr: 17.2
- Ni: 10.1
- Mo: 2.1
- N: -
- Others: -
Forta 316L/4404
A normal-carbon alternative to Forta 316L/4404 that is widely used for various applications.
Per aggiungere un altro elemento, devi prima escludere questo dal confronto
- EN: 1.4404
- ASTM type: 316L
- ASTM UNS: S31603
- Microstructure : Austenitic
- Automotive components
- Tanks and vessels
- C: 0.02
- Cr: 17.2
- Ni: 10.1
- Mo: 2.1
- N: -
- Others: -
Forta 316plus
Forta 316plus is a cost-efficient, 21Cr lower-nickel/molybdenum alternative to traditional molybdenum austenitics like Forta 316L/4404.
Per aggiungere un altro elemento, devi prima escludere questo dal confronto
- EN: 1.4420
- ASTM type: -
- ASTM UNS: S31655
- Microstructure: Austenitic
- Automotive components
- Tanks and vessels
- C: 0.02
- Cr: 20.3
- Ni: 8.6
- Mo: 0.7
- N: 0.19
- Others : -
Forta 316Ti/4571
A titanium-stabilized, molybdenum-alloyed austenitic alternative to Forta 316L/4404 – mainly used in Germany.
Per aggiungere un altro elemento, devi prima escludere questo dal confronto
- EN: 1.4571
- ASTM type: 316Ti
- ASTM UNS: S32100
- Microstructure: Austenitic
- Heating technology
- Profiles
- C: 0.04
- Cr: 16.8
- Ni: 10.9
- Mo: 2.1
- N: -
- Others: Ti
Circle Green Forta LDX 2101
A lean-alloyed duplex product with good resistance to localized and uniform corrosion, as well as stress corrosion cracking, making it a good substitute for coated carbon steel in e.g. structural components and storage tanks. Also offers high mechanical strength and good machinability.
Per aggiungere un altro elemento, devi prima escludere questo dal confronto
- EN: 1.4162
- ASTM type: -
- ASTM UNS: S32101
- Microstructure: Duplex
- Storage tanks
- Household heaters
- Structural components for floodgates and bridges, or rebar for concrete structures
- Pulp and paper industry applications such as digesters and components for paper machines
- Flanges and valves
- C: 0.03
- Cr: 21.5
- Ni: 1.5
- Mo: 0.3
- N: 0.22
- Others : 5 Mn Cu
Forta
La gamma Forta comprende acciai inossidabili duplex, austenitici e ferritici temprati e laminati della serie H che consentono strutture più sottili e riduzione del peso (misurato in Rp0.2 > 350 MPa. PRE 16 - 43).
L'acciaio inossidabile duplex (austenitico-ferritico) combina molte delle migliori proprietà degli acciai inossidabili austenitici e ferritici: elevata robustezza, buona resistenza alla corrosione e maggiore resistenza alla tensocorrosione (Rp0.2 > 400 MPa. PRE 26 - 43).
Forta DX 2205 (EN 1.4462) è il prodotto duplex più noto che offre un'ottima resistenza alla corrosione uniforme e localizzata e alla tensocorrosione in combinazione con un'elevata resistenza meccanica. Super duplex Forta SDX 2507 (EN 1.4410), con resistenza alla corrosione e resistenza meccanica maggiori rispetto a Forta DX 2205, viene spesso utilizzato in ambienti estremamente corrosivi, ad esempio in condizioni di desalinizzazione, in applicazioni chimiche o sottomarine offshore.
La serie H è costituita da acciai inossidabili completamente austenitici contenenti manganese, ad alta resistenza e alta duttilità (Rp0.2 > 400 MPa. PRE 21). Forta H400 (EN 1.4376) con un contenuto di nichel inferiore ha una robustezza maggiore rispetto agli acciai inossidabili austenitici standard 304/304L ed è una soluzione economica per applicazioni automobilistiche leggere.
Forta H500 (EN 1.4678) ha una microstruttura completamente austenitica e non magnetizzabile con notevole incrudimento dovuto alla geminazione. Con una resistenza allo snervamento superiore a 500 MPa, è una perfetta alternativa leggera per componenti rilevanti per la sicurezza nell'industria automobilistica e dei trasporti.
Gli acciai inossidabili temprati e laminati hanno robustezza e durezza elevate (Rp0.2 > 350 MPa. PRE 16 - 25). Per incrudimento si intende un processo aggiuntivo di laminazione a freddo controllato che viene applicato agli acciai inossidabili austenitici e ferritici standard e aumenta la resistenza e la durezza superficiale degli acciai. La classificazione della resistenza comprende classi di resistenza allo snervamento da CP350 fino a CP1100 MPa e classi di resistenza alla trazione da C700 fino a C1900 MPa.
L'acciaio inossidabile austenitico temprato e laminato Forta 301/4310 (EN 1.4310) può raggiungere la classe di resistenza più alta. Forta H800 (EN 1.4678) e Forta H1000 (EN 1.4678) sono lo stato temprato e laminato di Forta H500 e non ancora magnetico. Offrono una maggiore resistenza alle parti rilevanti per la sicurezza nelle collisioni e una soluzione a prezzo basso e stabile nel settore automobilistico.
Standards and approvals
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 |
Forta DX 2304, Forta DX 2205, and Forta SDX 2507 are listed in EN 10028-7:2007.
European material approval EAM 0045-01:2012/01 for Forta LDX 2101 is available for cold rolled 0.5-6.4 mm and hot rolled 3.0–10.0 mm.
In ASME II-D 2013, Forta DX 2205 (S31803 and S32205). Forta EDX 2304 (S32304), Forta SDX 100 (S32760) and Forta SDX 2507 (S32750) are listed for general use in the temperature range -30 – 316 °C. Data for Forta LDX 2101 and Forta LDX 2404 can be found in ASME code case 2418-1 and 2780 respectively.
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
- Pressure Equipment Directive (PED)