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AISI 4140 Steel Bar

AISI 4140 Steel Bar
AISI 4140 Steel Bar
Product Code : 03
Product Description

Owing to our immense industry experience and knowledge, we are engaged supplying a broad stock of AISI 4140 Steel Bars. The offered pipes are precisely engineered by using best quality material that enhances their durability and longevity. Used for diverse constructional applications, the gamut of AISI 4140 Steel Bars is delivered in square as well as in round shapes. Moreover, we deliver the entire range of in variegated shape, sizes and thickness.
These AISI 4140 Steel Bars feature excellent resistance to high temperatures, corrosion and other adverse conditions. The alloys we use in manufacturing these bars is cold drawn annealed steel of relatively high harden- ability. These steel bars respond well to heat-treatment and are relatively easy to machine. These bars have good strength and wear resistance, excellent toughness, coupled with good ductility, and the ability to resist stress at elevated temperatures.           

Chemical Composition :-

  • Ni : Min 0.15, Max 0.25%
  • C : Min 0.38, Max 0.43%
  • Si : Min 0.20, Max 0.35%
  • Cr : Min 0.80, Max 1.10%
  • Mn : Min 0.75, Max 1.00%
  • S : Max 0.035%
  • P : Max 0.035%

Equivalent Grades :-

Standard                           AISI/SAE 4140

WERKSTOFF NR.             41CrMo4, 42CrMo4, 42CrMoS4, 43CrMo4

UNI                             41CrMo4, 38CrMo4(KB), G40 CrMo4, 42CrMo4

BS970                          708M40, 708A42, 709M40, En19C

EN Name                      42CrMo4

JIS                              SCM 440, SCM 440H, SNB 7, SCM 4M, SCM 4

EN                              1.7223, 1.7225, 1.7227, 1.3563

Mechanical Properties :-

  • Yield(psi) : Min 80k, Max 110k
  • UTS(psi) : Min 110k
  • Charpy : 50J
  • Reduction of area : Min 40%
  • Hardness HRC : 18.22
  • Elongation : Min 20%

Features of AISI 4140 Steel Bar :-

  • Strongly designed
  • High precision
  • Seamless finish
  • Flat bottom surface
  • Rust proof finish


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