Duplex and other high strength stainless steel
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Duplex
High strength and ductility
Temper rolled products
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.
EN 1.4462
ASTM type -
ASTM UNS S32205
Microstructure Duplex
Typical applications
Product forms
Datasheet
Chemical composition, % by mass
C 0.02
Cr 22.4
Ni 5.7
Mo 3.1
N 0.17
Others -
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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.
EN 1.4162
ASTM type -
ASTM UNS S32101
Microstructure Duplex
Typical applications
Product forms
Datasheet
Chemical composition, % by mass
C 0.03
Cr 21.5
Ni 1.5
Mo 0.3
N 0.22
Others 5 Mn Cu
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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.
EN 1.4362
ASTM type -
ASTM UNS S32304
Microstructure Duplex
Typical applications
Product forms
Datasheet
Chemical composition, % by mass
C 0.02
Cr 23.0
Ni 4.8
Mo 0.3
N 0.10
Others Cu
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An enhanced version of Forta DX 2304 with better corrosion resistance and higher mechanical strength.
EN 1.4362
ASTM type -
ASTM UNS S32304
Microstructure Duplex
Typical applications
Product forms
Datasheet
Typical chemical composition, % by mass
C
0.02
Cr 23.8
Ni 4.3
Mo 0.5
N 0.18
Others Cu
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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.
EN 1.4662
ASTM type -
ASTM UNS S82441
Microstructure Duplex
Typical applications
Product forms
Datasheet
Typical chemical composition, % by mass
C 0.02
Cr 24.0
Ni 3.6
Mo 1.6
N 0.27
Others 3Mn Cu
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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.
EN 1.4501
ASTM type -
ASTM UNS S32760
Microstructure Duplex
Typical applications
Product forms
Datasheet
Chemical composition
C 0.02
Cr 25.4
Ni 6.9
Mo 3.8
N 0.27
Others W Cu
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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.
EN 1.4410
ASTM type -
ASTM UNS S32750
Microstructure Duplex
Typical applications
Product forms
Datasheet
Typical chemical composition, % by mass
C 0.02
Cr 25
Ni 7.0
Mo 4.0
N 0.27
Others -
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A duplex product with improved formability and better corrosion resistance than Forta LDX 2101 and Forta DX 2304. It has high strength and excellent forming properties, and is used in applications where the use of standard duplex is restricted due to its formability limitations.
EN 1.4637
ASTM type -
ASTM UNS S82031
Microstructure Duplex
Typical applications
Datasheet
Typical chemical composition, % by mass
C
≤0.04
Cr 19.0-22.0
Ni 2.0-4.0
Mo 0.6-1.4
N 0.14-0.24
Others ≤2.5Mn
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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.
EN 1.4376
ASTM type -
ASTM UNS -
Microstructure Austenitic
Usage
Datasheet
Typical chemical composition, % by mass
C 0.04
Cr 17.5
Ni 4.0
Mo -
N 0.20
Others 6.8Mn
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A classic 16% chromium ferritic stainless steel used in mildly corrosive environments.
EN 1.4016
ASTM type 430
ASTM UNS S43000
Microstructure Ferritic
Typical applications
Product forms
Datasheet
Typical chemical composition, % by mass
C 0.05
Cr 16.2
Ni -
Mo -
N -
Others -
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A low-carbon, nitrogen alloyed alternative to Forta 301/4310.
EN 1.4318
ASTM type 301LN
ASTM UNS S30153
Microstructure Austenitic
Typical applications
Product forms
Datasheet
Typical chemical composition, % by mass
C 0.02
Cr 17.7
Ni 6.5
Mo -
N 0.14
Others -
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A lower chromium and nickel alternative to Forta 304/4301 with high work hardening capacity.
EN 1.4310
ASTM type 301
ASTM UNS S30100
Microstructure Austenitic
Typical applications
Product forms
Datasheet
Typical chemical composition, % by mass
C
0.10
Cr 17.0
Ni 7.0
Mo -
N -
Others -
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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.
EN 1.4301
ASTM type 304
ASTM UNS S30400
Microstructure Austenitic
Typical applications
Datasheet
Typical chemical composition, % by mass
C 0.04
Cr 18.1
Ni 8.1
Mo -
N -
Others -
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Forta 304L/4307 is a low-carbon alternative to Forta 304/4301 and is suitable for a wide variety of applications.
EN 1.4307
ASTM type 304L
ASTM UNS S30403
Microstructure Austenitic
Typical applications
Product forms
Datasheet
Typical chemical composition, % by mass
C 0.02
Cr 18.1
Ni 8.1
Mo -
N -
Others -
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A normal-carbon alternative to Forta 316L/4404 that is widely used for various applications.
EN 1.4401
ASTM type 316
ASTM UNS S31600
Microstructure Austenitic
Typical applications
Product forms
Datasheet
Typical chemical composition, % by mass
C 0.04
Cr 17.2
Ni 10.1
Mo 2.1
N -
Others -
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A normal-carbon alternative to Forta 316L/4404 that is widely used for various applications.
EN 1.4404
ASTM type 316L
ASTM UNS S31603
Microstructure Austenitic
Typical applications
Product forms
Datasheet
Typical chemical composition, % by mass
C 0.02
Cr 17.2
Ni 10.1
Mo 2.1
N -
Others -
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Forta 316plus is a cost-efficient, 21Cr lower-nickel/molybdenum alternative to traditional molybdenum austenitics like Forta 316L/4404.
EN 1.4420
ASTM type -
ASTM UNS S31655
Microstructure Austenitic
Typical applications
Product forms
Data sheet
Typical chemical composition, % by mass
C 0.02
Cr 20.3
Ni 8.6
Mo 0.7
N 0.19
Others -
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A titanium-stabilized, molybdenum-alloyed austenitic alternative to Forta 316L/4404 – mainly used in Germany.
EN 1.4571
ASTM type 316Ti
ASTM UNS S32100
Microstructure Austenitic
Typical applications
Product forms
Datasheet
Typical chemical composition, % by mass
C 0.04
Cr 16.8
Ni 10.9
Mo 2.1
N -
Others Ti
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Go directly to Outokumpu Forta Edelstahlgüten
| 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:
