42crmo高强度合金结构钢板
42 crmo钢板是超高强度合金结构钢，具有高强度、高韧性、淬透性好、无明显回火脆性、高疲劳极限、耐多冲击等特点，淬火回火处理后具有良好的低温冲击韧性。42crmo高强度合金结构钢板适用于制造有一定强度和韧性要求的大中型塑料模具。
42crmo steel sheet material properties
42CrMo has high creep strength and long-lasting strength at high temperatures. The steel usually has a surface quenching after quenching and tempering as a heat treatment scheme. As a plastic mold steel, it has excellent workability and good mechanical properties.
42crmo steel Plate Equivalent
Its corresponding international standard organization number:42 crmo4
Corresponding Japanese grade:SCM440
Corresponding to the German grade: 42CrMo4
Approximate to the ASTM grade: 4140
42crmo钢板的化学成分
Carbon C: 0.38 to 0.45%
Silicon Si: 0.17~0.37%
Manganese Mn: 0.50 to 0.80%
Sulfur S: Allowable residual content ≤0.035%
Phosphorus P: Allowable residual content ≤0.035%
Chromium Cr: 0.90 to 1.20%
Nickel Ni: Allowable residual content ≤0.30%
Copper Cu: Allowable residual content ≤0.30%
Molybdenum Mo: 0.15 to 0.25%
42crmo Steel Plate Physical Properties
1) Critical point temperature (approximate): Ac1 = 730 ° C, Ac3 = 800 ° C, Ms = 310 ° C.
2) Linear expansion coefficient: temperature 20~100°C/20~200°C/20~300°C /20 ~400°C/20~500°C /20~600°C, linear expansion coefficient: 11.1×10K /12.1 × 10K / 12.9 × 10K / 13.5 × 10K / 13.9 × 10K14.1 × 10K.
3) Modulus of elasticity: temperature 20 ° C / 300 ° C / 400 ° C / 500 ° C / 600 ° C, elastic touch 210000MPa / 185000MPa / 175000MPa / 165000MPa / 15500oMPa
42crmo Steel Plate Characteristics And Application
This material is featured with high strength, hardenability, good toughness, small deformation during quenching, high creep strength and long-lasting strength at high temperatures. Forgings requiring higher strength and larger quenching section than35 crmo钢，如用于机车牵引的大齿轮、增压器传动齿轮、压力容器齿轮、后轴、极负荷连杆和弹簧夹。42crmo合金也可用于2000米以下的石油深井钻杆接头和打捞工具，也可用于弯管机模具。
下一个:35crmo合金钢板的中国供应商