41Cr4(1.7035) special steel

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Detailed description

 1.Characteristics and application:

Is the most commonly used alloy steels, tensile strength, yield strength and its quench-hardening ability are better than no. 40 steel is high, but the weldability Co., LTD, have formed the tendency of crack. More important for the conditioning parts, such as alternating load of parts, medium speed work and medium load parts. Hardening to load and high wear resistance and very big impact, and no parts, such as gear, sleeve, shaft, crankshaft, pins2.Chemical ingredients:

 Carbon C: 0.38 ~ 0.45Si Si: more than 0.40Manganese Mn: 0.60 ~ 0.90Sulfur S: allow residual content than 0.035Phosphorus P: allow residual content than 0.035Chromium Cr: 0.90 ~ 1.20Ni Ni: allow residual content than 0.030Copper Cu: allow residual content than 0.030

3.Mechanical properties:

Tensile strength σ b (MPa) : frequency 980 (100)The yield strength σ s (MPa) : frequency 785 (80)Elongation δ 5 (%) : 9 frequencyArea reduction ψ (%) : 45 frequencyImpact energy Akv (J) : 47 frequencyImpact toughness values α kv (J/cm2) : 59 quartile (6)Hardness: more than 207 HBSample size: sample blank dimensions for 25 mm4.Heat treatment standard and metallographic organization:

 Heat treatment specification: quenching 850 °C, the oil cold; Tempering 520 °C, water, oil, and cold.5.Delivery status:

 to heat treatment (is fire, annealed or high temperature tempering) or not heat treatment state delivery, delivery status should be indicated in the contract

41Cr4(1.7035) special steel