42CrMo alloy plate
Proton heavy industry and trade Materials Co., Ltd. Since its inception, all staff's joint efforts to open up the formation of the characteristic varieties of steel sales, Baosteel resource-based (including automotive steel, beam steel, steel, weathering steel, enamelled steel, cold rolled high strength steel, Ma steel, dual phase steels, transformation induced plasticity steel, carbon structural volume, deep red material, high carbon steel, low alloy steel coil, etc.), supplemented by the general heat, the general cold, coated (hot dip zinc, galvanized, electro galvanized), pickling, tinplate, plate, profiles supporting varieties such as sales and service to its own financial strength, reputation, and the major steel mills and regions to maintain close business relationship with the implementation of "Kaiping, longitudinal cut, winding, transport and train services. Shanghai Tang heavy industry and trade Materials Co., Ltd. has been committed to the construction of professionalism, integrity, good corporate image. Of all heavy Proton staff under the leadership of the company's leadership, hard work, encourage each other, work together, work together and improve the professional quality of employees and business skills, and collaborative business units provide quality, comprehensive, efficient service. Since its inception, the company has been in "good faith, mutual benefit, win-win" principle, make friends, the spirit of "no one I have, I have excellent people, gifted people I Lim, the same price than the price of service than the same service marketing idea, what customers think, urgent customer needs and strive for stability with customers, long-term cooperative relations. With its advanced network management and improve the logistics system is an efficient information superhighway. "A man of integrity, credibility is the life" I believe Xiang Kun will do better. In order to better serve our new and old customers, we continue to improve their own quality, to achieve first-class system, first-class service, first-class management, first-class team of enterprise development requirements, so that you never felt in the selection direction of development.
● Features and Scope:
Strength, high hardenability and good toughness, small deformation, quenching, high creep strength and rupture strength at high temperatures. Used in the manufacture require forging greater than the higher intensity of 35CrMo steel and quenched and cross-section, such as locomotive traction gears, the supercharger drive gear, pressure vessels, gear, rear axle, by a great load of the connecting rod and collet can also be used below 2000m deep oil drill pipe joints and fishing tools, and can be used in the mold of the bending machine.
42CrMo chemical composition
Carbon C: 0.38 to 0.45%
Silicon Si: 0.17 ~ 0.37%
Mn Mn: 0.50 ~ 0.80%
Sulfur S: to allow the residual content ≤ 0.035%
Phosphorus P: ≤ 0.035% to allow the residual content
Chromium Cr: 0.90 ~ 1.20%
Ni: to allow the residual content ≤ 0.030%
Cu: to allow the residual content ≤ 0.030%
Mo Mo: 0.15 ~ 0.25%
The 42CrMo Xu stress
The 42CrMo allowable stress of 186 ~ 310/MPa yield point 930σs/MPa, 42CrMo strength, high hardenability and good toughness, quenched deformation at high temperatures, high creep strength and rupture strength. 42CrMo used in the manufacture require forging greater than the higher intensity of 35CrMo steel and quenched and cross-section
42CrMo mechanical performance
Tensile strength σb (MPa): ≥ 1080 (110)
Yield strength σs (MPa): ≥ 930 (95)
Elongation δ5 (%): ≥ 12
Section shrinkage ψ (%): ≥ 45
Impact energy Akv (J): ≥ 63
The impact toughness values αkv (J/cm2): ≥ 78 (8)
Hardness: ≤ 217HB
Sample size: sample blank size of 25mm
42CrMo heat treatment
Annealing annealing, Version 760 ± 10 ° C annealing furnace cooling to 400 ℃ air-cooled.
HB220-230
Normalizing the normalize Version 860 ± 10 ° C normalizing, cooled baked.
Quenched and quenching + tempering to Chinese Version. 840 ± 10 ° C quench water or oil (depending on the product shape complexity) ,680-700 degree tempered. HB <217
Quenched and quenching + tempering Version 840 ± 10 ° C quenching oil, and then 470 degree tempered. HRC41-45
Quenched and quenching + tempering No.7 840 ± 10 ℃ quenching oil, 480 degrees and then tempering. HRC35-45
Quenched and quenching + tempering No.8 850 ℃ quenching oil, and then 510 degrees tempering. HRC38-42
Quenched and quenching + tempering No.9 850 ° C quenching oil, and then 500 degrees tempering. HRC40-43
Quenched and quenching + tempering No.10 850 ° C quenching oil, and then 510 ° C tempering. HRC36-42
Quenched and quenching + tempering No. 11 850 ° C quenching oil, and then 560 ° C tempering. HRC32-36
Quenched and quenching + tempering No.12 860 ° C quenching oil, 390 degrees and then tempering. HRC48-52
Common Specifications
Name Specifications / mm material
Bright Round Bar 3.0-25 42CrMo
Hot rolled round steel 12-50 42CrMo
Hot rolled round steel Ф140-150 42CrMo
HR steel round bar Ф160-170 42CrMo
Hot rolled round steel Ф16-40 42CrMo
HR steel round bar Ф200-280 42CrMo
HR steel round bar Ф50-70 42CrMo
HR steel round bar Ф50-90 42CrMo
HR steel round bar Ф50-95 42CrMo
Hot-rolled forging round Ф210-360 42crmo
Hot-rolled steel 4-10 42CrMo
Hot-rolled steel 8-10 42CrMo
Hot-rolled steel 18-20 42CrMo
Hot-rolled steel 22-28 42CrMo
Hot-rolled steel 30-34 42CrMo
80-100 42CrMo forging steel plate
160 42CrMo forging steel plate
170 42CrMo forging steel plate
180 42CrMo forging steel plate
Sakamoto mining forging round 350 42crmo
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