Non-Magnetic and Heat-Resistant 321 Stainless Steel

321 stainless steel round bar is a titanium-stabilized austenitic stainless steel designed for superior resistance to intergranular corrosion and high-temperature stability. The addition of titanium prevents chromium carbide formation, allowing 321 stainless to perform reliably in environments up to 1500°F.

Key Properties of 321 Stainless Steel

Heat Resistance – Provides continuous service at elevated temperatures, making it ideal for thermal and pressure applications.
Intergranular Corrosion Resistance – Titanium stabilization prevents carbide precipitation, protecting against corrosion after welding and high-heat exposure.
Strength & Creep Resistance – Delivers excellent creep strength and stress rupture properties under long-term heat service.
Non-Magnetic – Retains stability in non-magnetic applications.
Fabrication & Weldability – Easily welded by standard methods with no need for post-weld annealing.

Limitations of 321 Stainless Steel

While 321 stainless steel offers excellent corrosion resistance in many environments, it is not recommended for use in chloride-rich settings, where it can be susceptible to pitting and crevice corrosion.

Applications of 321 Stainless Steel Round Bar

Thanks to its heat resistance and durability, 321 stainless bar stock is widely used in:

Pressure vessels and boiler equipment
Heat exchangers and furnace parts
Aerospace and exhaust system components
Thermal process equipment

Partner with Mozaic Precision Metals

At Mozaic Precision Metals, we supply precision-ground 321 stainless steel round bar in a variety of sizes and custom finishes. With value-added services such as grinding, polishing, cutting, and chamfering, we deliver bar stock that meets the highest standards for strength and high-temperature performance.

For demanding thermal applications requiring heat resistance and corrosion protection, 321 stainless steel from Mozaic is the proven choice.

Applications of 321 Stainless Steel Wire

321 stainless steel wire is a stabilized austenitic alloy designed for high-temperature environments and corrosive conditions. Its resistance to intergranular corrosion, strength, and durability make it a versatile choice across industries.

Common Industry Applications

Aerospace & Aviation: Aircraft engines, exhaust systems, and components exposed to extreme heat and oxidative environments.

Petrochemical & Chemical Processing: Wire used in equipment exposed to acids, alkalis, and aggressive chemicals.

Automotive: Exhaust systems, gaskets, and high-temperature components requiring strength and corrosion resistance.

Medical & Dental: Biocompatible material for orthopedic implants, dental braces, and surgical instruments.

Food Processing & Packaging: Equipment and machinery exposed to acidic or salty foods, offering hygiene, ease of cleaning, and corrosion resistance.

With its excellent mechanical properties and ability to perform under extreme conditions, 321 stainless wire remains a dependable choice for critical applications.

321 Stainless Steel from Mozaic Precision Metals

Choosing the right stainless steel supplier is vital to ensuring quality and performance. At Mozaic Precision Metals, we provide high-grade 321 stainless steel wire tailored to meet the needs of aerospace, automotive, medical, food, and chemical industries. Our materials are processed to meet ISO-informed quality standards, giving you confidence in every order.

Why Work with Mozaic Precision Metals?

Leadership team with over 60 years of combined experience in stainless steel supply and precision grinding.
Wide selection of sizes, shapes, and finishes to match project requirements.
Expert guidance on machining, fabrication, and grade selection.
Competitive pricing and reliable delivery to keep operations efficient.