316L Stainless Steel Round Rod, Unpolished (Mill) Finish, Standard Tolerance, Inch, ASTM A276/ASTM A479
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316L Stainless Steel Round Rod, Unpolished (Mill) Finish, Standard Tolerance, Inch, ASTM A276/ASTM A479

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Product Specifications
Exterior Finish
Unpolished (Mill)
Item Shape
Round Rod
Specification Met
ASTM A276 , ASTM A479
Material Composition
Material Type
Stainless Steel
System of Measurement

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Key Features

  • 316L stainless steel has less carbon than 316 stainless steel, offering better corrosion resistance after welding or stress relieving
  • Unpolished (mill) surface has no finish
  • Meets ASTM A276 and A479 specifications
  • Standard tolerance

Product Description

The 316L stainless steel round rod has an unpolished (mill) surface, meets American Society for Testing and Materials International ASTM A276 and A479 specifications, and has a standard tolerance. The 316L stainless steel grade has less carbon than 316 stainless steel, offering better corrosion resistance after welding or stress relieving. It is a common choice when the material cannot be annealed after it has been welded. An austenitic stainless steel, 316L is typically nonmagnetic and can be cold worked to increase its hardness and strength while maintaining most of its formability.

Stainless steel is an iron alloy with resistance to staining and rusting in many environments where steel would typically degrade. The chemical composition of each grade creates a grain structure that falls into one of five classes: austenitic, duplex, ferritic, martensitic, and precipitation hardening. The austenitic class contains the most formable, weldable, and corrosion-resistant stainless steel grades, but they cannot be heat treated. The duplex class offers high resistance to pitting and chloride stress corrosion cracking. Duplex grades are heat treatable and roughly twice as strong as austenitic grades. The ferritic class contains moderately formable and corrosion-resistant grades compared to other stainless steel classes, but they cannot be heat treated. The martensitic class includes some of the hardest and strongest stainless steel grades that also offer mild corrosion resistance, high hardness, and good formability. Martensitic grades can be heat treated. The precipitation-hardening (PH) class can be heat treated after fabrication to achieve some of the highest hardness ratings in stainless steel.

Tensile strength, used to indicate the material’s overall strength, is the peak stress it can withstand before it breaks. Corrosion resistance describes the material's ability to prevent deterioration caused by atmosphere, moisture, or other medium. Wear resistance indicates the ability to prevent surface damage caused by contact with other surfaces. Toughness describes the material's ability to absorb energy before breaking, while hardness (commonly measured as indentation hardness) describes its resistance to permanent surface deformation. Formability indicates how easily the material can be permanently shaped. Machinability describes how easily it can be cut, shaped, finished, or otherwise machined, while weldability characterizes the ability to be welded. Magnetism characterizes how much the material is repelled by or attracted to a magnet.

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