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Duplex Steel

Duplex stainless steel combines high strength with strong corrosion resistance and is suited to demanding piping and process environments.

High tensile strength
High yield strength
Good ductility
Excellent corrosion resistance
Resistance to chloride stress-corrosion cracking
Good pitting resistance

At A Glance

MATERIAL FAMILY
Duplex Steel
COMMON GRADES
S31803 / S32205 / A182 F51 / DIN 1.4462
PRIMARY USE
Oil & Gas
PRODUCT FORMS
Pipe Fittings / Flanges

WHY DUPLEX STEEL?

Short explanation of why Duplex Steel is selected for industrial applications. It is engineered to perform reliably under demanding conditions.

High tensile strength

High yield strength

Good ductility

Excellent corrosion resistance

Resistance to chloride stress-corrosion cracking

Good pitting resistance

MATERIAL GRADES

Select a grade to understand its characteristics and typical chemical composition.

Duplex S31803

S31803 is one of the most widely used grades of duplex steel, offering excellent balance of strength, corrosion resistance, and fabricability for industrial applications.

Chromium
18-20%
Nickel
8-10.5%
Carbon
≤0.08%
Molybdenum

Standards & Specifications

Manufactured and certified in accordance with global industrial standards to ensure uncompromising quality and performance.

ASTM
ASME
EN

Typical Applications

Oil & Gas
Chemical Processing
Marine & Shipbuilding
Desalination
Pulp & Paper
Power Generation

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MATERIAL EXPERTISE

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