Super Duplex Steel Fastener Set DIN 9761 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
• Pulp & Paper – Processing machinery
• Desalination Plants – Water treatment facilities
• Bridge Construction – Structural engineering