What is 440C Stainless Steel Round Bar?

440C stainless steel round bar is a high-carbon, high-chromium alloy steel known for its superior hardness, wear resistance, and corrosion resistance. As one of the highest-strength stainless grades, it is widely used in applications that demand durability, precision, and long service life.

Key Properties of 440C Stainless Steel Bar

Exceptional Hardness – Achieves the highest strength and wear resistance of all stainless steels after proper heat treatment.
Corrosion Resistance – High chromium content provides excellent resistance against rust, saltwater, and humid environments.
Wear Resistance – Withstands heavy use, friction, and abrasion, making it ideal for precision components.
Heat Treatment Capability – Can be hardened to deliver outstanding mechanical performance for demanding applications.

Applications of 440C Stainless Round Bar

Thanks to its combination of hardness, strength, and corrosion resistance, 440C bar stock is widely used across multiple industries, including:

Rolling element bearings and valve seats
High-performance knife blades and cutting tools
Surgical instruments and medical devices
Chisels, molds, and wear-resistant components

Important Considerations

While 440C stainless steel offers excellent mechanical properties, it is not recommended for use in applications exposed to temperatures above its tempering range, as elevated heat can reduce its hardness and strength.

Partner with Mozaic Precision Metals

At Mozaic Precision Metals, we provide precision-ground 440C stainless steel round bar in custom sizes and finishes to meet your project requirements. With value-added services such as grinding, polishing, cutting, and chamfering, we deliver bar stock that performs under the toughest conditions.

For industries requiring maximum strength and wear resistance, 440C stainless steel from Mozaic is the proven choice.

Uses of 440C Stainless Steel Bar

440C stainless steel round bar is a high-carbon martensitic stainless steel prized for its superior hardness, wear resistance, and corrosion protection. These properties make it a preferred choice across multiple industries where durability and performance are essential.

Key Industry Applications

Aerospace & Defense: Aircraft parts, missile components, and other critical equipment requiring high strength and toughness.

Medical: Surgical instruments, orthopedic implants, and dental tools that demand wear resistance and corrosion protection.

Manufacturing: Cutting tools, trial blades, and precision machine parts exposed to high stress and abrasion.

Marine: Propeller shafts, marine hardware, and components that must resist saltwater corrosion.

Food Processing: Knives, cutlery, and sanitary tools designed for cleanliness and long-lasting sharpness.

With its combination of strength, hardness, and resistance to harsh conditions, 440C stainless steel bar is an ideal material for industries that cannot compromise on quality.

Properties and Benefits of 440C Round Bar

High Strength & Hardness: Rockwell hardness of 58–60, significantly higher than most stainless steels.

Corrosion Resistance: Strong protection against rust and corrosive environments, ideal for marine and chemical industries.

Exceptional Wear Resistance: Withstands heavy usage, friction, and abrasive conditions without degrading.

High Toughness: Capable of withstanding impact and stress without cracking or breaking.

Heat Resistance: Performs reliably at temperatures up to 600°C (1112°F), making it suitable for heat-treated and high-temperature applications.

Get 440C Stainless Steel from Mozaic Precision Metals

At Mozaic Precision Metals, we supply premium-grade 440C stainless steel round bar engineered for demanding industries. Whether you need stock in standard sizes or custom-processed to exact specifications, our expertise ensures you get the right material for your project.

Why Choose Mozaic Precision Metals?

Leadership team with over 60 years of combined experience in precision grinding and stainless steel supply.

Customization services including cutting, machining, and finishing to your requirements.

Fast, reliable delivery backed by industry-informed quality practices.

Unwavering commitment to providing durable, high-performance materials.