40CrMo steel
- GB/T 3077-
- China
- Stock
- 40CrMo
40CrMo steel 40CrMo steel has the characteristics of high strength, hardenability, good toughness, small deformation during quenching, and high creep strength and enduring strength at high temperatures. Name: 40CrMo Steel Grade: 40CrMo Stan
40CrMo steel
40CrMo steel
40CrMo steel has the characteristics of high strength, hardenability, good toughness, small deformation during quenching, and high creep strength and enduring strength at high temperatures.
Name: 40CrMo Steel
Grade: 40CrMo
Standard: GB/T 3077-1988
Metallographic structure: tempered sorbite
Heat treatment specification: quenching 850℃, oil cooling; tempering 560℃, water cooling, oil cooling.
Delivery status: delivery with heat treatment (normalizing, annealing or high temperature tempering) or without heat treatment. The delivery status should be indicated in the contract.
Chemical composition
| Grade | Chemical composition（%） | ||||||
| C | Si | Mn | P | S | Cr | Mo | |
| 40CrMo | 0.35～0.45 | 0.15～0.40 | 0.40～0.70 | ≤0.035 | ≤0.035 | 1.00～1.50 | 0.15～0.25 |
Mechanical behavior
| Grade | Mechanical behavior | ||||||
| Tensile strength (MPa) | Yield strength (MPa) | Elongation (%) | Reduction of area (%) | Impact energy (J) | Impact toughness value (J/cm2) | Hardness | |
| 40CrMo | ≥1080(110) | ≥930(95) | ≥12 | ≥45 | ≥63 | ≥78(8) | ≤217HB |
Application of 40CrMo steel
40CrMo steel is used to manufacture forgings that require higher strength and larger quenched and tempered section than 35CrMo steel, such as large gears for locomotive traction, supercharger transmission gears, rear axles, connecting rods and spring clips that are heavily loaded, and It can be used for oil deep well drill pipe joints and fishing tools under 2000m.
Product key description, this is a very good product description, detailing our product use, product characteristics
