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AISI 5140/41Cr4/SCR440 Alloy Steel Bar in stock

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Size: 16-500mm Hot rolled or forged

Payment Terms:T/T ,L/C

Process: EAF + LF + VD + Forged + Heat Treatment (optional)

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AISI 5140/41Cr4/SCR440 Alloy Steel Bar

5140/41Cr4 steel steel bar is one of the most widely used steel for machinery manufacturing industry which has good comprehensive mechanical properties after quenching and tempering.


AISI 5140/41Cr4/SCR440 Alloy Steel Bar Similar Grades

  • Standard: GB/AISI/JIS/DIN
  • Grade:40Cr/5140/SCr440/41Cr4 (1.7035)

AISI 5140/41Cr4/SCR440 Alloy Steel Bar Available Size

  • Hot rolled round bar: dia16mm-dia310mm
  • Hot rolled flat bar: thickness5mm-30mm, width50mm-130mm
  • Hot rolled square bar: 16mm*16mm-100mm*100mm
  • Forged steel round bar: dia100mm-dia1500mm
  • Forged flat bar: thickness20mm-400mm, width80mm-1000mm
  • Forged steel block: 100mm*100mm-1000mm*1000mm
  • Cold drawn round bar: dia4mm-dia100mm

AISI 5140/41Cr4/SCR440 Alloy Steel Bar Available Heat Treatment

Annealing/Normalizing/Hardening/Tempering/Quenching

  • Hot working temperature ℃: 1050-850
  • Annealing temperature ℃: 680-720
  • Normalizing temperature ℃: 840-880
  • Quenching temperature ℃: 820-850 water, 830-860 oil
  • Tempering temperature ℃: 540-680

Packaging & Delivery

We can also produce as per customers’ requirements

  • Delivery: 30 Days according to your quantity;
  • Transport: By bulk or Containers;
  • Payment terms: L/C, T/T


Chemical Composition (%) 

C Si Mn Cr P s
0.37-0.44 0.17-0.37 0.50-0.80 0.80-1.10 ≤0.035 ≤0.035
0.38-0.43 0.15-0.35 0.70-0.90 0.70-0.90 ≤0.035 ≤0.040
0.38-0.44 0.15-0.35 0.60-0.90 0.90-1.20 ≤0.030 ≤0.030
0.38-0.45 ≤0.40 0.60-0.90 0.90-1.20 ≤0.025 ≤0.035

AISI 5140/41Cr4/SCR440 Alloy Steel Bar Application

  • Gear, shafts, worm, spline shaft, main shaft, oil pump rotor, sliding block, lantern ring, etc.