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20Cr Alloy Structure Steel China Steel Grade Standard GB

Hardening of GB Alloy structural steel 20Cr; First quenching heated slowly to 880°C, Then after adequate soaking at this temperature quench in oil or water. Temper as soon as tools reach room temperature. Second quenching heat to 780-820°C then quenching in oil or water. Tempering of 20Cr Alloy structural steel 40Cr Alloy Structure Steel-GB/T 3077-China Steel material40Cr Alloy Structure Steel-GB/T 3077-China Steel material. Related Specifications ASTM A29/A29M DIN EN 10083/3 JIS G4053 GB/T 3077. Form of Supply. GB 40CR Alloy steel, we can supply the round bar, steel flat bar, plate, hexagonal steel bar and steel square block. Then after adequate soaking at this temperature quench in oil. Temper as

40Cr Steel CNC Machining Parts CNC Mechanical Steel

CNC Machining 40Cr Steel Parts. 40Cr Steel Is The Standard Steel Grade Of GB In Our Country, And 40Cr Steel Is One Of The Most Widely Used Steels In Machinery Manufacturing Industry. After Quenching And Tempering, It Has Good Comprehensive Mechanical Properties, Good Low Temperature Impact Toughness And Low Notch Sensitivity. 4140 Alloy Steel 1.7225 SCM440 42CrMo4 - OTAI The hardness of the steel can be increased if it has lower tempering temperature. For example, tensile strength of 225 ksi cab be achieved by tempering at 316°C (600°F), and a tensile strength of 130 ksi can be achieved by tempering at 538°C (1000°F). Hardening AISI 4140 alloy steel can be hardened by cold working, or heating and quenching. 42CrMo Steel Equivalent, Chemical Composition, Mechanical

  • IntroductionApplicationsDatasheetEquivalent40Cr Steel Equivalent, Mechanical Properties & Chemical 40Cr Alloy Steel. 40Cr steel is a kind of Chinese GB standard alloy steel for engineering and machinery purpose, and one of the most widely used steel grades.For 40Cr material hardness, specifications and equivalent, please see the table below. After quenching and tempering treatment, 40Cr steel has good comprehensive mechanical properties, low temperature impact toughness, low notch

    5140 Steel - Din 1.7035 - JIS SCr440 - Songshun Steel

    The ways of heat treatment for 1.7035 steel are normalizing, annealing, quenching, tempering and etc. Quenching it at the temperature of 850 and oil cooling. Tempering at the temperature of 520, then water-cooling and oil cooling. After quenching, the surface hardness of GB/T 34882-2017, PDF in English - Chinese Standard GB/T GB/T 34882-2017:English:150:Add to Cart:0--10 minutes. Auto immediate delivery. Induction hardening and tempering of iron and steel parts:GB/T 34882-2017:Valid:GB/T 34882-2017:GB/T 34882-2017:Chinese:18:Add to Cart =1-day [PDF from Chinese Authority, or Standard Committee, or Publishing House] GB/T3077 12Cr1MoV alloy structure steel forged bar - Bebon International is a professional GB/T3077 12Cr1MoV alloy structure steel forged bar steel exporter and a steel Stockist in china. We keep more than 1000 tons GB/T3077 12Cr1MoV alloy structure steel forged bar steel in stock every month.

    SAE AISI 4140 Steel Properties, Material Heat Treatment

    Dec 14, 2019 · SAE AISI 4140 Alloy Steel. SAE 4140 (AISI 4140 steel) is a Cr-Mo series (Chrome molybdenum series) low alloy steel, this material has high strength and hardenability, good toughness, small deformation during quenching, high creep strength and long-lasting strength at high temperature. 4140 Steel Uses. AISI SAE 4140 alloy steel can be made into round steel bar, flat & square steel bar, steel The characteristics and application of the 35CrMoV round The hardenability and high temperature strength of 35CrMoV are better than 34CrMo steel, in the oil critical quenching diameter of 25-108mm.It has slight temper brittleness when doing heat treatment , but the steel 's plasticity in the cold deformation is low , poor weldability. Using of water - oil quenching heat treatment, can improve the 35CrMo Steel Chemical Composition, Mechanical Properties Dec 08, 2019 · 35CrMo Steel. 35CrMo steel is a Chinese alloy steel for engineering purpose, it has high durability and creep strength at high temperature, and low temperature impact toughness is good. The working temperature is up to 500 °C, the low temperature can be -100 °C, and has high static strength and high fatigue strength, good hardenability, no tendency to overheat, small quenching deformation