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440C Stainless Steel Round Bar, Unpolished (Mill) Finish, Annealed/Cold Finished, AMS 5630/AMS QQ-S 763/ASTM A276, 0.375 Diameter, 48 Length, OnlineMetals
440C stainless steel boasts high strength, moderate corrosion resistance, and exceptional hardness, making it ideal for a variety of applications.
440C Stainless Steel Round Bar, Unpolished (Mill) Finish, Annealed/Cold Finished, AMS 5630/AMS QQ-S 763/ASTM A276, 0.375" Diameter, 48" Length, OnlineMetals
Item #: 125374105

440C Stainless Steel Round Bar, Unpolished (Mill) Finish, Annealed/Cold Finished, AMS 5630/AMS QQ-S 763/ASTM A276, 0.375" Diameter, 48" Length,

Item #: 125374105

MMK 298745

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440C stainless steel boasts high strength, moderate corrosion resistance, and exceptional hardness, making it ideal for a variety of applications.
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What Stands Out

High Corrosion Resistance
440C stainless steel offers exceptional resistance to corrosion and oxidation, making it ideal for applications in harsh environments, ensuring durability and longevity for your projects.
Precision Sizing
With a precise diameter of 0.375 inches and length of 48 inches, this round bar meets stringent specifications, providing reliable performance for machining and fabrication needs.
Versatile Applications
Ideal for various applications including tooling, valve components, and machinery parts, this annealed/cold finished round bar serves multiple industries, enhancing its value as a versatile material.

Product Details

Shop 440C Stainless Steel Round Bar, Unpolished (Mill) Finish, Annealed/Cold Finished, AMS 5630/AMS QQ-S 763/ASTM A276, 0.375 Diameter, 48 Length, OnlineMetals online at a best price in Myanmar. B003JU7YJI
  • 440C stainless steel has high strength, moderate corrosion resistance, good hardness, and wear resistance.
  • 0.375" Diameter, 48" Length
  • Stainless 440 is is typically used in rolling element bearing, valve seats, high-quality knife blades, surgical instruments, chisels, gage blocks, cutlery, ball bearings and races, molds and dies, knives, valve components, measuring instruments.
  • Meets AMS-QQ-S-763, AMS-5630, ASTM-A276
Item Thickness0.38 Inches (1 cm)
Item ShapeRound
Item FormBar
MaterialStainless Steel 440C
Grade Rating440C
Specification MetAms 5630, Ams Qq-s 763, Astm A276
Brand NameOnline Metals
Number of Items1
Model Number128956
Part Number18496
Unit Count4.0 Feet
ManufacturerOnlineMetals
BrandOnline Metals
ShapeRound
Item Weight1.34 lbs (610 grams)

Who Should Buy?

Suitable For
  • Tool Manufacturers

    Ideal for creating cutting tools, thanks to its excellent hardness and wear resistance properties.

  • Machinists

    Perfect for precision machining applications requiring high strength and durability in stainless steel components.

  • Industrial Applications

    Suitable for various industries like aerospace and automotive, meeting strict material specifications.

Not Suitable For
  • Non-Metal Workers

    Not suitable for users who do not work with metals or lack machining equipment.

Product Description

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Customer Questions & Answers

  • Question: What is 440C stainless steel, and what are its properties?

    Answer: 440C stainless steel is a high-carbon martensitic stainless steel known for its excellent hardness and wear resistance. With a high chromium content, it also offers good corrosion resistance. This makes it suitable for applications such as tools, surgical instruments, and bearings, where durability is critical.
  • Question: How is the 440C stainless steel round bar finish described?

    Answer: The 440C stainless steel round bar features an unpolished (mill) finish which retains the original surface texture from the manufacturing process. This finish is beneficial for applications needing better surface adherence, such as welding or coating, and provides a better grip in non-slippery environments.
  • Question: What does it mean that the 440C round bar is annealed and cold finished?

    Answer: Being annealed means that the stainless steel has undergone a heat treatment process to relieve stress and enhance machinability. Cold finishing refers to the process of further refining the bar's dimensions and surface quality. This combination ensures improved mechanical properties and dimensional accuracy.
  • Question: What are the typical applications for a 0.375” diameter 440C stainless steel round bar?

    Answer: The 0.375” diameter 440C round bar is commonly used in the manufacturing of precision components such as knife blades, valve parts, and fasteners. Its hardness and strength make it an ideal choice for applications requiring high-performance materials that endure wear and tensile stress.
  • Question: What standards does this round bar meet?

    Answer: This 440C stainless steel round bar meets several critical standards including AMS 5630, AMS QQ-S 763, and ASTM A276. These specifications ensure quality control and performance for various industrial applications, providing assurance that the material has been evaluated for mechanical and chemical properties.
  • Question: Can the 440C stainless steel round bar be cut or machined?

    Answer: Yes, while 440C stainless steel is hardened, it can be cut or machined using proper techniques and tools. It's advisable to use carbide cutting tools and consider coolant during operation to enhance tool life. This makes it suitable for precision machined parts in demanding environments.
  • Question: Is 440C stainless steel prone to corrosion?

    Answer: 440C stainless steel offers moderate corrosion resistance, particularly in environments with low chloride exposure. However, it is not as resistant as austenitic stainless steels. Regular maintenance or application of protective coatings can enhance its performance in humid or corrosive environments.
  • Question: What is the significance of the annealing process for this round bar?

    Answer: The annealing process is critical for 440C stainless steel as it enhances its ductility and reduces hardness, making it easier to work with. This allows for more accurate machining and the creation of intricate designs, essential for high-quality components in manufacturing and construction sectors.
  • Question: How does the diameter of the bar affect its use?

    Answer: The 0.375” diameter offers a balance between strength and weight, making it versatile for a variety of applications. In tools or fixtures where structural integrity and lightweight properties are essential, this diameter provides the necessary performance while maintaining functional ease.
  • Question: Where can I buy 440C Stainless Steel Round Bar in Myanmar?

    Answer: You can purchase 440C Stainless Steel Round Bar from Ubuy in Myanmar. Ubuy offers a reliable platform for sourcing high-quality stainless steel products, ensuring an efficient shopping experience with various options that meet industrial needs.

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