Hot Rolled 8620 Bar

8260 HR steel bar

Characteristics

Hot rolled (HR) 8620 bar is a low carbon nickel chromium molybdenum alloy is a low cost steel with good carburized properties.  The nickel content contributes to case toughness at high strength with above average core toughness.  The chromium and molybdenum support the proper formation of carbides resulting in good surface hardness and wear.  It is the most widely used carburizing alloy.

Applications

Typical applications for hot rolled 8620 steel bar include gears, pinions, shafts, and other applications where it is helpful to have a steel that can be readily machined and carburized to controlled case depths.

Sizes

  1. Diameter: 0.125" thru 12"
  2. Stock Lengths: 10' thru 24'

Typical Chemical Properties

Carbon

0.18 - 0.23

Manganese

0.70 - 0.90

Phosphorus, Max %

0.035

Sulfur, Max %

0.040

Silicon

0.15 - 0.35

Nickel

0.40 - 0.70

Chromium

0.40 - 0.60

Molybdenum

0.15 - 0.25

Typical Mechanical Properties

Tensile Strength ksi

75 - 95

Yield Strength

50 - 80

Elongation in 2"

17% - 35%

Reduction of area

40% - 65%

Brinelle Hardness

143 - 201

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