UNS S32205 stainless steel is a duplex alloy comprising roughly equal parts austenite and ferrite – which define the granular structure of steel alloys. Austenitic steel grades are broadly employed in construction and engineering as they can be readily alloyed with a plethora of additional components (chromium, nickel, molybdenum, etc.) to meet strict specifications and standards. Ferritic stainless steels cannot compete with that level of versatility – yet they can be easily welded in thin sections which may enable the reduction of material costs and a reduced risk of stress-related failure.

Duplex stainless steels like UNS S32205 unite the best of these properties to form a cost-effective, high-performance structural solution for challenging areas of application. Masteel is one of the foremost UNS S32205 suppliers in the UK. We provide plates in a range of geometries and thicknesses to suit the needs of engineers in applications ranging from pulp and paper mills to offshore rigs. In this blog post, we will outline four of the key benefits of UNS S32205 stainless steel in more detail

1. Strength

UNS S32205 has the exceptional tensile and yield strengths characteristic of ferritic stainless steels; far superior to those of austenitic grades. The minimum tensile strength of UNS S32205 is 620 MPa while the minimum yield strength is 450N/mm2.

2. Cost

The superior strength of UNS S32205 represents the opportunity to reduce the volume of material used without compromising on quality. This enables project managers to viably reduce material costs in critical areas.

3. Corrosion Resistance

UNS S32205 benefits from the physical characteristics of ferrite, but its chemical properties come courtesy of its austenitic crystallography. With high concentrations of anti-corrosive elements like chromium (Cr), nickel (Ni), and molybdenum (Mo), UNS S32205 boasts superior corrosion resistance to even the tried-and-tested stainless steel Type 316.

4. Stress Corrosion Cracking Resistance

This manifold of outstanding physicochemical properties makes UNS S32205 exceptional at withstanding dynamic forms of mechanical stress, such as stress corrosion cracking (SCC). SCC resistance determines the extent to which an alloy can withstand the propagation of flaws, or cracks, in corrosive environments. UNS S32205 is uniquely prepared to withstand tensile stress in high corrosive and moderate temperature environments, ensuring long-lasting performance with limited maintenance requirements.

Learn more about Duplex Stainless Steels: Outlining Duplex Stainless Steels

Masteel: UNS S32205 Suppliers

Masteel are UNS S32205 suppliers with a secure global supply chain based around our high-quality European steel mills. If you would like more information on the properties and applications of our UNS S32205 steel plates, read our previous blog post: When to Use UNS S32205?

Otherwise, contact a member of the Masteel team today with any questions.