Zeron 100

What is Zeron® 100?

Zeron® 100 is a super duplex stainless steel known for its exceptional strength and corrosion resistance. Its chemical composition includes approximately 25% chromium, 7% nickel, 3.6% molybdenum, along with additions of copper and tungsten. This balanced combination of elements adds to its superior performance in extreme environments.

What makes Zeron® 100 unique?

Zeron® 100 uniqueness originates from its dual-phase microstructure, consisting of equal parts austenite and ferrite. This structure provides a unique blend of mechanical strength and corrosion resistance, making it more robust than standard austenitic stainless steels. The alloy’s high pitting resistance equivalent number (PREN) of 40 (up to 43) ensures excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, particularly in chloride-rich and sour environments. Get more information about PREN on our blog.

Zeron® 100 Chemical Composition

Check out Zeron® 100’s chemical composition pie chart. The balance of Nickel, Molybdenum, Chromium, Tungsten, and Copper give it good corrosion resistance while it high content of Iron give it great strength.

Why choose Zeron® 100 fasteners over other duplex stainless steel alloys?

✅Higher strength than 316/316L and standard duplex (2205) stainless steels
✅ Superior resistance to seawater and harsh chemicals
✅ Excellent mechanical properties even at elevated temperatures
✅ Prevents galling and seizing, ensuring long-term reliability

Zeron Allowable Stress Comparison with other Duplexes

In this table, we compare AL-6XN, 2205 Duplex, 2507 Duplex with Zeron® 100’s performance as it relates to allowable stress in boiler and pressure vessels.

Zeron® 100 Industries & Applications

Zeron® 100 fasteners are widely used in offshore and onshore oil & gas applications due to their superior resistance to chloride stress corrosion cracking and extreme pressure conditions.

Oil & Gas Industry

Zeron® 100 fasteners are widely used in offshore and onshore oil & gas applications due to their superior resistance to chloride stress corrosion cracking and extreme pressure conditions. Applications include: subsea pipelines and flanges, offshore drilling rigs and FPSO (floating production storage and offloading) systems, heat exchangers and pressure vessels, valves and wellhead components

• Hex Bolts & Heavy Hex Bolts – Used for flanged connections in pipelines and subsea equipment.
• Stud Bolts – Essential for wellhead components, BOPs (Blowout Preventers), and pressure vessels.
• Socket Head Cap Screws – Found in offshore platform structures and subsea manifolds.
• Washers – Used with flanged connections to maintain bolt preload in extreme conditions.

Marine & Shipbuilding Industry

With exceptional seawater corrosion resistance, Zeron® 100 fasteners are ideal for marine environments. Applications include: ship hulls, superstructures, and offshore platforms, naval defense vessels and submarine components, & desalination heat exchangers and seawater pumps

• Carriage Bolts – Used in structural connections for ship hulls and decks.
• Anchor Bolts – Secure offshore wind turbines and naval structures.
• Threaded Rods – Used in ship superstructures and pump assemblies.
• Flat-Head Screws – Applied in marine decking and interior fittings.

Chemical Processing Industry

Zeron® 100’s resistance to sulfuric, hydrochloric, and phosphoric acid makes it an ideal material for corrosive chemical environments. Applications include: fasteners used in acid storage tanks and reactor vessels, chemical processing plants & piping systems.

• Teflon-Coated Bolts – Used in highly acidic or alkaline environments.
• Double-End Studs – Secure pressure vessels and reactor tanks.
• Socket Set Screws – Used for chemical mixing equipment.
• Flange Bolts – Applied in pipe fittings for chemical transport.

Power Generation

Zeron® 100 fasteners are ideal for high-temperature and high-pressure applications in power plants. Applications include: steam turbines and cooling water systems, flue gas desulfurization units, & high-temperature heat exchanger supports

• Turbine Bolts – Secure components in steam turbines.
• Hex Nuts & Lock Nuts – Used in high-pressure piping systems.
• Shoulder Bolts – Used in heat exchangers and condensers.
• Belleville Washers – Maintain preload on bolted connections in extreme heat.

Desalination Plants

Zeron® 100’s resistance to brine and chlorides makes it perfect for desalination systems. Applications include: reverse osmosis and multi-stage flash units, high-pressure pump connections, & evaporator and filtration components

• Marine-Grade Bolts – Used in reverse osmosis plants.
• Stud Bolts & Nuts – Found in high-pressure desalination pumps.
• Sealing Washers – Prevent leaks in desalination heat exchangers.
• U-Bolts – Secure piping systems in desalination plants.

Mining & Mineral Processing

Mining operations require abrasion-resistant and corrosion-resistant fasteners to handle acidic leaching processes. Applications include: acid leaching tanks and high-pressure autoclaves, slurry pumps and high-wear mining equipment, & structural support in ore processing plants

• Square Head Bolts – Used in mining conveyor systems.
• Lag Bolts – Secure mineral processing tanks and pumps.
• Wedge Anchors – Anchor mining structures in high-vibration areas.
• Hex Bolts & Nuts – Used in leaching tank construction.

Aerospace Industry

Zeron® 100 fasteners are used in aerospace due to their lightweight strength and resistance to extreme temperatures. Applications include: jet engine components and landing gear, & aerospace structural frames and fuel systems

• Hex Head Cap Screws – Secure structural components in aircraft.
• Tapered Pins – Used in jet engine components.
• Self-Locking Nuts – Ensure secure connections in high-vibration environments.

Water Treatment & Wastewater Management

Zeron® 100 fasteners prevent chloride-induced corrosion in wastewater and water treatment plants. Applications include: UV disinfection and filtration units, high-pressure pumps in water treatment plants, & wastewater piping and chemical storage tanks

• Flange Bolts & Nuts – Secure pipe flanges in chlorinated water systems.
• Lag Screws – Used in filtration system support structures.
• Expansion Anchors – Anchor heavy water treatment equipment.
• Sealing Washers – Provide leak-proof connections in chemical dosing systems.

Purchasing Zeron® 100 fasteners

Nickel Systems offers high-performance fasteners made from Zeron 100, a super duplex stainless steel known for its exceptional strength, corrosion resistance, and durability in the harshest environments. Ideal for demanding applications in the chemical processing, marine, and oil & gas industries, our Zeron 100 fasteners provide superior performance and extended service life. Whether you need bolts, nuts, washers, or custom components, we deliver precision-engineered solutions tailored to your specifications.

Contact us today to request a quote and discover how Nickel Systems can meet your Zeron 100 fastener needs with speed, reliability, and expert support.

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