20CrMo steel is an important high strength structural steel that can be used in the manufacture of more demanding parts such as gears, shafts, shaft parts, springs, etc. 20CrMo steel heat treatment specification: quenching 880℃; Tempering 200℃; Hardened plate or oil cold; Temper 200~250℃. Delivery condition of 20CrMo steel: Delivered in rolled or forged condition.
The oxidation resistance of 20CrMo steel: (1) standard: 20Mn2 (Cr, Mn) =25~45, the test temperature is 500~650℃, air protection, slow cooling. (2) sample size: thickness 1.0~5.0 mm.
20CrMo steel application, machine industry standard 20Mn2Ni3 steel is generally processed in a hot state; If necessary, good formability and high dimensional accuracy; Or as a mold, stamping and other work requires higher hardness and strength; Or used to make wear-resistant parts.
20CrMo steel has excellent oxidation resistance and mechanical properties after heat treatment and can be strengthened by heat treatment. However, due to the high chromium content, it is easy to crack during hot working. 20CrMo steel has good mechanical properties and wear resistance after heat treatment.
20CrMo steel is a high strength alloy steel with good comprehensive mechanical properties. Delivery condition: in heat treatment (normalizing, annealing or high temperature tempering) or non-quenching condition; Generally to heat treatment (normalizing cold state; Annealed state; Chemical composition (mass fraction) of 20CrMo steel: carbon 0.20~0.45%, chromium 0.25~1.00%, molybdenum 0.15~0.2%, silicon 0.08. Mechanical properties of 20CrMo steel: yield strength σb≤560 MPa; Tensile strength σs≥950 MPa; Elongation δ/%≥7 (including 7, the same below); Impact toughness J≥4.008J/cm2.
Just like you, 70% customers choose long-term cooperation with BBN steel not only for our good product and service quality, good reputation in the international market, but also for our experienced one-stop raw material supply and further steel processing!
