Welcome To Henan Steel Guang International Trade Co., Ltd.
HENAN STEEL GUANG INTERNATIONAL TRADE CO., LTD.
Introduction of AISI4140

Introduction of AISI4140

American steel AISI4140 Chemical Composition  Executive Standard  Material Certification

Alloy Constructional Steel: AISI4140

Executive Standard: ASTM A29/A29M-04

Characteristics and Scope of AISI4140 Application:

4140 sheet metal has good machinability, small processing deformation and very good fatigue resistance. It belongs to medium-hardenability steel. After heat treatment, 4104 has good strength, good comprehensive mechanical properties, good technology and high production rate. The maximum operating temperature is 427 degrees Celsius.

4140 sheet metal has high strength, high hardenability, good toughness, small deformation during quenching, high creep strength and lasting strength at high temperature. It is used to produce forge pieces with higher strength than 35CrMo steel and larger tempering section, such as large gear, turbocharger drive gear, rear axle, heavy load connecting rod and spring clip for locomotive traction, and it can also be used for deep drilling rod joints and fishing tools under 2000m.

Chemical Composition of 4140 sheet metal:

Carbon (C) 0.38 ~ 0.43

Manganese (Mn) 0.75 ~ 1.00

Phosphorus (P)≤0.030

Sulfur (S)≤ 0.040

Nickel (Ni)≤0.030

Chromium (Cr) 0.80 ~ 1.10

Molybdenum(Mo) 0.15 ~ 0.25

Mechanical Properties:

Tensile strength σb (MPa): ≥ 1080 (110)

Yield strength σs (MPa): ≥ 930 (95)

Elongation δ5 (%): ≥12

Reduction of Area ψ(%): ≥ 45

Impact Power Akv (J):  ≥ 63

Impact Toughness Index αkv (J/cm2): ≥ 78 (8)

Hardness: ≤ 217HB

Sample Size: the size of sample blank is 25mm

Heat Treatment Specification and Metallographic Organization:

Related News
  • 4140 Sheet Metal

    4140 Sheet Metal

    May 23, 2018Alloy Constructional Steel: 4140 sheet metalOperative Norm: ASTM-A29/A29M-04Characteristics and Scope of Application:High strength, high hardenability, good toughness, small deformation during quenchi...view
  • Chemical Test Of Steel Plates

    Chemical Test Of Steel Plates

    August 6, 2018Section 1 Overview of steel platesSteel plates are widely used in construction, hardware, equipment, engineering machinery, machine tools, ships, aerospace, automobiles, locomotives, electronics, comp...view
  • SA299GrA

    SA299GrA

    August 30, 2018SA299GrA steel plate is one of the materials widely used in boiler drums (steam drums) of coal-fired generator sets. At present, the special thick steel plate for boiler steam drum has not been domest...view
  • Thickness Of Steel Plate And Automobile Safety

    Thickness Of Steel Plate And Automobile Safety

    August 6, 2018Why does the thickness of the steel plate have nothing to do with the safety?The structure of the car is like a lanternThe structure of this lantern is very similar to that of our car. It is a skeleto...view
  • TEL:+86-371-55023661
  • EMAIL: info@steelguang.com
  • ADDRESS:Room 2001, Unit 2, Building 2, No. 96, Ruhe Road, Zhengzhou City, Henan Province, China
If you wish to cooperate with us, please leave your E-mail and we will contact you then.
top