Wuxi 5crmnmo zero zero shear cut 5crmnmo round 5crmnmo round 5crmnmo5crmnmo Wuxi Wuxi 5crmnmo zero zero shear cut 5crmnmo round 5crmnmo round 5crmnmo5crmnmo Wuxi Wuxi 5crmnmo zero zero shear cut 5crmnmo round 5crmnmo round 5crmnmo5crmnmo Wuxi 5CrMnMo edit is in the mold steel 5CrMnMo on the basis of carbon steel major added Cr, Mn, Mo developed into three elements can also be seen as the 5CrNiMo steel element is replaced by Ni and Mn formed. The steel is hot die steel, in addition to hardenability, thermal fatigue resistance somewhat less, 5CrMnMo steel has similar performance with 5CrNiMo steel, hardenability somewhat less suitable for making steel · This requires a high strength and high resistance to grinding of all types die · require higher toughness, can be ESR steel · 5CrMnMo keep the carbon content of steel 0.40% 0.60% obtain higher strength and thermal fatigue strength, a certain hardness and wear resistance, good toughness and thermal conductivity. The basic characteristics of Contents 1 2 3 4 mechanical properties of the chemical ingredients 5 6 recommended hardening heat treatment specification Material Name: Alloy tool steel grades: CrMnMo5 Standard: GB / T 1299-1985 ● Hardness: 44 ~ 48 ● Uses: suitable for manufacturing side length ≤ 400mm medium-sized forging die that is eager side mode. 2 features 5CrMnMo adding Cr, Mn, Mo elements mainly to improve the hardenability of steel, especially when you work together, greatly improved hardenability. Cr, Mn, Mo element can be in solid solution in the ferrite from the solid solution strengthening effect, but also the formation of solid solution (Fe, Cr, Mo) 3C, to improve its hardness, improved wear resistance of steel in the Fe3C. Cr, Mn, Mo interaction elements significantly improve the stability of tempering steel. Mo elements can reduce temper embrittlement and grain refinement. Since Ni elements significantly improve hardenability, toughness and thermal fatigue properties of the steel, so 5CrMnMo steel compared with 5CrNiMo steel, although the intensity is not reduced, but the toughness and ductility at room temperature and high temperature was much lower, and the quenching permeability and thermal fatigue performance is also lower. In addition, 5CrMnMo added steel thermal sensitivity slightly larger Mn, Mo elements of steel. Moreover, the presence of Cr steel have some antioxidant and corrosion resistance of the steel. 3 Chemical Composition Carbon C: 0.50 ~ 0.60 5CrMnMo 5CrMnMo Si Si: 0.25 ~ 0.60 Manganese Mn: 1.20 ~ 1.60 Sulfur S: ≤ 0.030 Phosphorus P: ≤ 0.030 Chromium Cr: 0.60 ~ 0.90 Ni: to allow the residual content of ≤ 0.25 Copper Cu: allow the residual content of ≤ 0.30 Mo Mo: 0.15 ~ 0.30 Heat treatment specifications: quenching, 820 ~ 850 ℃ oil cooling. Tempering uses heating temperature / ℃ heating medium hardness (HRC) to eliminate stress, stable organization and size 5CrMnMo steel thermal processing are shown in Table 3-1-3. Table 3-1-3 5CrMnMo steel thermal processing Wuxi 5crmnmo zero zero shear cut 5crmnmo round 5crmnmo round 5crmnmo5crmnmo Wuxi Wuxi 5crmnmo zero zero shear cut 5crmnmo round 5crmnmo round 5crmnmo5crmnmo Wuxi Wuxi 5crmnmo zero zero shear cut 5crmnmo round 5crmnmo round 5crmnmo5crmnmo Wuxi Wuxi 5crmnmo zero zero shear cut 5crmnmo round 5crmnmo round 5crmnmo5crmnmo Wuxi