Lean Duplex 2202 Stainless Steel

Anzor Fasteners are now NZ agents for a new range of LEAN duplex 2202 Class 80 stainless steel fasteners, which are a corrosion-resistant and high tensile strength alternative to 8.8 carbon steel fasteners, at a price slightly lower than 304 grade stainless.

Although these 2202 Class 80 fasteners are not currently held in stock in New Zealand, they can be procured on an indent basis for infrastructure projects and ongoing manufacturing requirements.

What is 2202 Stainless Steel?

2202 is a lean duplex stainless steel (UNS S32001, EN 1.4482) with lower nickel and higher chromium and nitrogen content, ensuring excellent corrosion resistance and cost savings. It combines ferritic and austenitic structures, offering exceptional mechanical properties and environmental protection.

View our full test report here.

Lean Duplex 2202 Stainless Steel Features

Superior Corrosion Resistance: 2202 shows remarkable resistance to rust in neutral salt spray tests, performing similar or better than that of 304 and performs exceptionally well in acidic environments (significantly better than 304).
Higher Mechanical Strength: 2202 Class 80 fasteners have superior strength and fatigue resistance properties with a Tensile Strength of 800 MPa and Yield Strength of 600 MPa. Compared to 304 stainless steel, 2202 Class 80 is significantly stronger and especially so at elevated temperatures where at 300°C it has twice the yield strength of 304 .
Excellent Fatigue Resistance: 2202 offers fatigue resistance more than three times greater than 304 stainless steel.
Cost Efficiency: Higher strength means less material is required, reducing overall costs and weight. Also with lower levels of Nickel and Molybdenum it is around 5% less than the cost of 304 and significantly less than 316, but still with excellent corrosion resistance.
Sustainability: Producing 1 ton of 2202 stainless steel emits only 2.21 CO₂ equivalents, compared to 4.64 CO₂ for carbon steel products that also require additional surface treatments. So together with having a longer life-cycle and the fact that stainless steel is 100% recyclable (and mostly made from recycled content), it is by far the most sustainable choice.