440 Stainless Steel Sheet

440C Stainless Steel Sheet Supplier in China

440c Stainless Steel Sheet Factory in China

440C stainless steel sheet belongs to the martensitic stainless steel group, which is typically not suitable for welding due to its tendency to air harden, leading to cracking. 440C stainless steel sheet is commonly used in the hardened and tempered condition. Tuolian offers customized services, including various forms of 440C stainless steel, different grades of stainless steel sheets, and a wide range of sizes to cater to your specific projects.

Features of 440c Stainless Steel Sheet

440C stainless steel sheet is a hardenable chromium steel known for its high strength, moderate corrosion resistance to fresh water, food, and mild acids, as well as its excellent wear resistance. Our 440C stainless steel sheet exhibits the best resistance when hardened, tempered, and passivated.

Features of 440c Stainless Steel Sheet
Applications of 440c Stainless Steel Sheet

Applications of 440c Stainless Steel Sheet

Due to its high strength, 440C stainless steel sheet finds application in various industrial, machine, and tool settings, such as surgical instruments, chisels, cutting instruments, knife blades, ball bearings, and valve parts. Additionally, 440C stainless steel sheet is used in the manufacturing of measuring instruments, rolling element bearings, and valve seats.

Metals Processing
Metals Processing

We provide a range of professional metals processing services, including flame cutting, grinding, plasma cutting, plate laser cutting, precision plate sawing, precision milled super square, press brake/forming, thermal processing, tube cutting & chamfering, tube laser cutting, saw cutting, shearing, and waterjet cutting. All of these treatments can be tailored to meet your specific requirements.

440c Stainless Steel Sheet Heat Treatment
440c Stainless Steel Sheet Heat Treatment

440C stainless steel sheet undergoes heat treatment consisting of annealing, hardening, and tempering. Annealing involves heating to 800-900°C (1472-1652°F) and slow cooling. Hardening occurs at 1000-1050°C (1832-1922°F) with rapid cooling. Tempering follows, typically at 150-300°C (302-572°F), to enhance toughness.

Our 440C stainless steel sheet meets multiple international standards, including ASTM A276, ASTM A480, ASTM F899, AMS 5630 Chem Only, and AISI (440C).

How to heat treat 440c stainless steel at home?

Heat treating 440C stainless steel at home requires annealing at 800-900°C (1472-1652°F), followed by hardening at 1000-1050°C (1832-1922°F) and quenching in oil or air. Finally, temper the steel at 150-300°C (302-572°F) for improved toughness.

Is 440 stainless steel good for knives?

Yes, 440 stainless steel is commonly used in the manufacturing of knives and is known for its excellent hardness, wear resistance, and corrosion resistance. It is a high-carbon martensitic stainless steel that offers good edge retention and is relatively easy to sharpen. 440 stainless steel, particularly 440C, is often favored by knife makers and enthusiasts for its combination of hardness, corrosion resistance, and affordability. However, it’s important to note that the performance of a knife depends on various factors beyond the steel type, such as heat treatment, blade geometry, and overall design.

Is 440c stainless steel magnetic?

Yes, 440C stainless steel is magnetic. It belongs to the martensitic stainless steel family, which is generally magnetic due to its microstructure. The high carbon content and heat treatment process of 440C stainless steel contribute to its magnetic properties. This magnetic characteristic can be useful in certain applications, such as magnetic knife holders or when working with magnetic tool holders or devices.

How hard is 440c stainless steel?

440C stainless steel is known for its excellent hardness. It is a high-carbon martensitic stainless steel that can achieve high levels of hardness through proper heat treatment. When properly hardened, 440C stainless steel can reach a hardness of approximately 58-60 HRC (Rockwell Hardness Scale). This high hardness makes it well-suited for applications where wear resistance and edge retention are crucial, such as in high-performance knives, cutting tools, and bearings.

Related Material

Choose the stainless steel grade you need, for any use, Tuolian always gives you the best solution.

One Stop Stainless Steel Supply.

Whether you need stainless steel materials for your business or fabrication projects, TuoLian is your best supplier. You can find all types, grades, and thicknesses based on your needs. Guaranteed that we provide the best quality at a reasonable cost.
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