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Super Duplex, Duplex Steel Fastener Set DIN 976-1, DIN 931, DIN 933 Hex Bolts, DIN 934 Nuts, DIN 125 Flat Washers
Product Overview
We supply high-quality Duplex Steel Fasteners manufactured strictly to German DIN standards, including bolts, nuts, and washers. Duplex stainless steel combines the advantages of both austenitic and ferritic steel grades, offering exceptional strength and superior corrosion resistance for demanding industrial applications.
Key Advantages
Twice the design strength of conventional austenitic and ferritic stainless steels
Excellent corrosion resistance – particularly resistant to stress corrosion cracking, pitting, and crevice corrosion
Good toughness down to -80°C
High-temperature performance – suitable for applications up to 300°C
Key Features
DIN Standard Compliance – All products manufactured to German DIN specifications for guaranteed quality and interchangeability
Dual-Phase Microstructure – Superior mechanical properties from combined austenitic and ferritic structure
Wide Size Range – From M3 to M56, with custom dimensions available upon request
Diverse Thread Options – Metric and imperial thread configurations to meet global requirements
Full Traceability – Mill test certificates available as per EN 10204 / 3.1
Applications
Our duplex steel fasteners are widely used in industries requiring high strength and corrosion resistance, including:
Oil & Gas – Offshore platforms, pipelines, and refineries
Chemical & Petrochemical – Processing equipment and pressure vessels
Marine Engineering – Shipbuilding and offshore structures
Power Generation – Wind energy, thermal power plants