Alloy Steel Round Bars Specifications

Author: Chhajed Alloys

Alloy Steel Round Bar are found in different grades like ASTM A182 - F5, F9, F11, F12, F22 & F91 high temperature oxidation resistance is necessary and in other applications where high temperature strength is required. Alloy SAE 4140 Rod has high creep resistance and strength at high temperatures as it performs good at high temperature.

Hot Rolled Alloy Steel Round Bars manifest superior physical and mechanical properties, which are essential in applications such as annealing of aerospace and medical components to critical specifications, and heat treatment of large aerospace components in vacuum furnaces. 42crmo4 Bar is highly beneficial to their high temperature strength, it has high chromium content which is so beneficial to the wet corrosion resistance.

Alloy Steel Round Bar is has variety of alloying elements which improves its mechanical properties, and have great strength, formability, and hardenability. They are long, cylindrical alloy bar stock that has many industrial and commercial applications. SA 182 F91 Rod has high toughness and strength, low coefficient of thermal expansion and mechanical durability. A182 F12 Flat Bar suitable for a wide variety of applications, they are rectangular section with square edges varying in sizes.

Specification Schedule of Alloy Steel Round BarManufacturing SpecificationASTM A182, ASME SA 182Dimensions StandardsASME, AISI, EN, ASTM, BS, JIS, DINAlloy Steel round bar surface finish
  • Peel turned and burnished (PTB)
  • Hot Rolled Pickled
  • Peel turned (PT)
  • Cold Drawn
  • Rough machined (RM)
  • Hairline
  • Sand Blasting Finished
  • Black
  • Bright Polished
  • Polished
  • NO.4 Finish
  • BA Finish
  • Rough Turned
  • Matt Finish
Alloy Steel round bar stock length1000 mm - 6000 mm Long or Custom Cut LengthsPrecision shapesRound, Hex (A/F), Square, Rectangle, Forging,. Billet, IngotQuality certificationNACE MR0175Chemical Properties of Alloy Steel Round BarGradeCMnCrNiMoSPSiA182 F5 Round Bar0.15 Max0.30-0.604.0-6.00.50 Max0.44-0.650.030 Max0.035 Max0.50 MaxA182 F1 Round Bar0.15 Max0.30-0.603.0-5.00.50 Max0.40-0.500.030 Max0.035 Max0.50 MaxA182 F22 Round Bar0.05-0.150.30-0.602.00-2.50-0.90-1.100.040 Max0.035 Max0.50 MaxA182 F91 Round Bar0.08-0.120.30-0.608.0-9.50.40 Max0.85-1.050.010 Max0.020 Max0.20-0.50A182 F9 Round Bar0.15 Max0.30-0.608.0-10.0-0.90- 1.100.030 Max0.030 Max0.50- 1.0042CrMo4 Round Bar0.380 - 0.45 %0.60 - 0.90 %0.90 - 1.20 %-0.15 - 0.30 %≤ 0.035 %≤ 0.035 %-A182 F11 Round Bar0.10-0.200.40-0.651.00-1.50-0.44-0.650.040 Max0.025 Max0.50-0.80Mechanical Properties of Alloy Steel Round BarAlloy Steel Bar PropertiesBar ConditionsT (°C)TreatmentDensity (×1000 kg/m3)7.7-8.0325Elastic Modulus (GPa)190-21025Tensile Stress (Mpa)115825fine grained, oil quenched, tempered at 425 Degree CYield Strength (Mpa)1034Reduction in Area (%)53Round Bar Hardness (HB)33525fine grained, oil quenched, tempered at 425 Degree CEquivalent Standard of Alloy Steel Round BarASTM A182/ SA 182WERKSTOFF NR.DIN standardUNS designationA182 F5/ F5A1.736212CrMo195K41545A182 F91.7386X12CrMo91K90941A182 F11 (CL2)1.733813CrMo44K11572A182 F12 (CL2) 16CrMo44-A182 F22 (CL3) 10CrMo910K21590A182 F91 X10CrMoVNb9-1-42CrMo4 Round Bar42CrMo4