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Fasteners, Metals and Plastics - Alloy Steel - Alloy 4140


Alloy 4140 Flats - Annealed
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Typical Analysis:
  • Carbon - .38/.43
  • Manganese - .75/1.00
  • Phosphorus - .035 Max
  • Sulfur - .040 Max
  • Silicon - .15/.35
  • Chromium - .80/1.10
  • Molybdenum - .15/.25

  • Squares and Flats - Furnished decarb free plus .015/.035
  • Round Bar - Furnished in hot rolled condition


Alloy 4140 Flats - Heat Treated
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Typical Analysis:
  • Carbon - .38/.43
  • Manganese - .75/1.00
  • Phosphorus - .035 Max
  • Sulfur - .040 Max
  • Silicon - .15/.35
  • Chromium - .80/1.10
  • Molybdenum - .15/.25

Prehardened to Rockwell C 26-30
  • Squares and Flats - Furnished decarb free plus .015/.035
  • Round Bar - Furnished in hot rolled condition


Alloy 4140 Rounds - Annealed
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Typical Analysis:
  • Carbon - .38/.43
  • Manganese - .75/1.00
  • Phosphorus - .035 Max
  • Sulfur - .040 Max
  • Silicon - .15/.35
  • Chromium - .80/1.10
  • Molybdenum - .15/.25

  • Squares and Flats - Furnished decarb free plus .015/.035
  • Round Bar - Furnished in hot rolled condition


Alloy 4140 Rounds - Heat Treated
Click Here for more information or to order
Typical Analysis:
  • Carbon - .38/.43
  • Manganese - .75/1.00
  • Phosphorus - .035 Max
  • Sulfur - .040 Max
  • Silicon - .15/.35
  • Chromium - .80/1.10
  • Molybdenum - .15/.25

Prehardened to Rockwell C 26-30
  • Squares and Flats - Furnished decarb free plus .015/.035
  • Round Bar - Furnished in hot rolled condition


Alloy 4140 Squares - Annealed
Click Here for more information or to order
Typical Analysis:
  • Carbon - .38/.43
  • Manganese - .75/1.00
  • Phosphorus - .035 Max
  • Sulfur - .040 Max
  • Silicon - .15/.35
  • Chromium - .80/1.10
  • Molybdenum - .15/.25

  • Squares and Flats - Furnished decarb free plus .015/.035
  • Round Bar - Furnished in hot rolled condition


Alloy 4140 Squares - Heat Treated
Click Here for more information or to order
Typical Analysis:
  • Carbon - .38/.43
  • Manganese - .75/1.00
  • Phosphorus - .035 Max
  • Sulfur - .040 Max
  • Silicon - .15/.35
  • Chromium - .80/1.10
  • Molybdenum - .15/.25

Prehardened to Rockwell C 26-30
  • Squares and Flats - Furnished decarb free plus .015/.035
  • Round Bar - Furnished in hot rolled condition



Servicing Industry Since 1968

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