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8620 Alloy Steel Disc, Unpolished (Mill) Finish, Standard Tolerance, Inch, ASTM A29

Available in multiple versions


Price: $13.45 - $60.17
Product Specifications
Shape Disc
Material Type Alloy Steel
Exterior Finish Unpolished (Mill)
Grade 8620
System of Measurement Inch
Specification Met ASTM A29
Material Composition Solid
UNSPSC Code 30000000

The 8620 alloy steel disc has an unpolished (mill) surface, meets American ... See more product details


Currently showing 1-13 of 13
Outside Diameter Thickness Number of Items Part Number
The Amazon Standard Item Number (ASIN) uniquely identifies the item in the Amazon catalog.
Price Quantity
   
3 inches 1/2 inches 1 B003ZHV5ZE
$13.45
3 inches 1 inches 1 B003ZHV5ZO
$16.70
3 inches 1-1/2 inches 1 B003ZHV5ZY
$18.23
4 inches 1/2 inches 1 B003ZHV630
$18.54
4 inches 1 inches 1 B003ZHV63A
$21.79
4 inches 1-1/2 inches 1 B003ZHV63K
$25.05
4 inches 2 inches 1 B003ZHV63U
$28.30
4 inches 3 inches 1 B003ZHV644
$36.86
5 inches 1/2 inches 1 B003ZHV64O
$21.73
5 inches 1 inches 1 B003ZHV64Y
$26.82
5 inches 1-1/2 inches 1 B003ZHV658
$32.54
5 inches 2 inches 1 B003ZHV65I
$40.10
5 inches 3 inches 1 B003ZHV65S
$60.17
Currently showing 1-13 of 13
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Product Features

  • 8620 alloy steel is a high-strength steel that provides good formability and toughness, and excellent weldability
  • Meets ASTM A29 specifications
  • Unpolished (mill) surface has no finish
  • Standard tolerance

Product Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B00CZDO08S

Product Description

The 8620 alloy steel disc has an unpolished (mill) surface, meets American Society for Testing and Materials International ASTM A29 specifications, and has a standard tolerance. The 8620 alloy steel grade contains nickel, chromium, and molybdenum for high strength, good formability and toughness, and excellent weldability. This material can be heat treated for higher hardness.

Steel is an iron alloy with carbon and other elements that modify the steel to achieve specific properties. In general, steels with higher carbon content have greater strength, hardness, and wear resistance, while those with lower carbon content have more formability, weldability, and toughness. Carbon steels, which include most AISI-SAE grades in the 1000 range, are classified by their level of carbon content as low (below 0.3%), medium (0.3% to 0.6%) and high (0.6% and above). Alloy steels, which include AISI-SAE grades in the 1300 and 4000 ranges and above, incorporate elements such as chromium, molybdenum, and nickel to modify properties like machinability and corrosion resistance. Tool steels, which include most grades with a letter and number grade designation, have high carbide content for wear resistance, high hardness, and the ability to hold a cutting edge. Some tool steels are designed to resist deformation when used in elevated temperatures.

Tensile strength, used to indicate a material’s overall strength, is the peak stress it can withstand before it breaks. 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.

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