40CrNiMoA Steel Bar

40CrNiMoA Steel Bar

40CrNiMoA Steel Bar is a type of round bar made of 40CrNiMoA alloy steel.

40CrNiMoA Steel Bar is a high-strength alloy that offers excellent toughness and hardenability, making it suitable for use in heavy-duty applications.

The 40CrNiMoA Steel Bar is commonly used in manufacturing components such as gears, shafts, and hydraulic cylinders. Its high-strength properties and excellent resistance to wear and fatigue make it an ideal material for use in high-stress applications.

40CrNiMoA is a Chinese alloy steel that is part of the chrome-moly low alloy steel series. It is a medium carbon, low alloy steel that is known for its toughness and strength. 40CrNiMoA is mainly used to make parts that require high strength and toughness, such as the crankshaft of the forging press and the transmission eccentric shaft of the horizontal forging machine.

The mechanical properties of the 40CrNiMoA Steel Bar can be improved through heat treatment, such as quenching and tempering. This process helps to improve its hardness, toughness, and strength, making it suitable for use in high-stress applications.

Compared to other types of steel bars, 40CrNiMoA Steel Bar offers superior mechanical performance at higher temperatures, making it an ideal material for use in high-temperature applications.

Overall, 40CrNiMoA Steel Bar is a highly versatile and durable material that is widely used in various industries, including automotive, aerospace, marine, and construction. Its high strength, toughness, and hardenability make it an excellent choice for heavy-duty applications that require reliable and long-lasting components.

Equivalent Grade

  • Germany: 34CrNiMo6
  • United States: 4340
  • Japan: SNCM439 (SNCM8)
  • United Kingdom: 817M40
  • Italy: 40NiCrMo7

Chemical Composition

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Cu(%) Mo(%)
0.37~0.4 0.17 ~ 0.37 0.50 ~ 0.80 ≤0.025 ≤0.025 0.60~0.90 1.25 ~ 1.65 ≤0.25 0.15 ~ 0.25

Mechanical Propoerties

Yield Strength
Rp0.2(MPa)
Tensile Strength
Rm(MPa)
Impact Energy
AKV(J)
Elongation
A(%)
Impact toughness Reduction
of area ψ (%):
Hardness
≥ 835(85) ≥ 980(100) ≥ 78 ≥ 12 ≥ 98(10) ≥ 55 ≤ 269 HBW

What Is 40CrNiMoA?

40CrNiMoA is a type of alloy steel that contains chromium, nickel, and molybdenum as its major alloying elements. It is a low-alloy steel with high strength, toughness, and hardenability, making it suitable for use in heavy-duty machinery and equipment.

40CrNiMoA is commonly used in components such as gears, shafts, and bolts, where high strength and durability are required. It has excellent fatigue resistance and improved wear resistance due to the presence of nickel, molybdenum, and chromium.

The mechanical properties of 40CrNiMoA can be improved through heat treatment, such as quenching and tempering. This process helps to improve its hardness, toughness, and strength, making it suitable for use in high-stress applications.

Compared to other types of steel, 40CrNiMoA offers superior mechanical performance at higher temperatures, making it an ideal material for use in high-temperature applications.

Overall, 40CrNiMoA is a highly versatile and durable alloy steel that is widely used in various industries, including automotive, aerospace, marine, and construction. Its high strength, toughness, and hardenability make it an excellent choice for heavy-duty applications that require reliable and long-lasting components.

40CrNiMoA steel bar is available in stock sizes ranging from Φ80to Φ700. The common length for 40CrNiMoA steel bar is 3000mm, 6000mm, and 9000mm.

40CrNiMoA alloy structural steel is a high-quality carbon structural steel enhanced by adding one or more alloying elements (total content not exceeding 5%). This material is renowned for its superior mechanical properties, making it suitable for manufacturing high-strength and high-toughness components.

【H】 Ceramic lined pipe

Ceramic lined pipe is made through self-propagating high-temperature synthesis (SHS) technique.

【H】 Cast basalt lined steel pipe

Cast basalt lined steel pipe is composed by lined with cast basalt pipe, outside steel pipe and cement mortar filling between the two layers.

【H】 Ceramic Tile Lined Pipes

Ceramic tile lined pipes have very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe.

【H】 Rare earth alloy wear-resistant pipe

The material of the rare earth alloy wear-resistant pipe is ZG40CrMnMoNiSiRe, which is also the grade of rare earth alloy steel.

【H】 Tubes Erosion Shields

Tubes Erosion Shields are used to protect boiler tubing from the highly erosive effects of high temperatures and pressures thereby greatly extending tube life.

【H】 ASTM A213 T91 Alloy Tube

The ASTM A213 T91 seamless tubes are primarily used for boiler, superheater, and heat-exchanger.

The White Glove Service You Deserve

When you partner with Sunny Steel, you can stop worrying about meeting deadlines thanks to our responsive and timely service. You'll also say goodbye to unnecessary shopping around. Instead, you'll get white glove service from an expert who understands your needs and can get you the materials you need quickly.

application

Materials delivered on-time and at a fair price

application

No delays in production or manufacturing process

application

Meet engineering specifications to ensure top quality

application

World-class customer service ready to help