Y12Pb易切削钢#含铅钢棒【Y12Pb圆钢】
Y12Pb lead free cutting steel, cutting processability was good, there is no directional performance, and have higher mechanical properties, is often used in the manufacture of the important mechanical parts, precision instrument parts, etc
Y12Pb chemical composition:
Carbon C: 0.08 ~ 0.16
Si Si: 0.15 or less
Manganese Mn: 0.70 ~ 1.10
Sulfur S: 0.15 ~ 0.25
P P: 0.05 ~ 0.10
Lead Pb: 0.15 ~ 0.35
Mechanical properties, tensile strength of sigma b (MPa) : (hot rolled) 390 ~ 540; (cold drawn) steel thickness or diameter of 8 ~ 20:530 ~ 755; > 20 ~ 30:510 ~ 735;> 30:490 ~ 685
Elongation is the delta 5 (%) : (hot rolled) 22 or more; (cold rolled) of 7.0 or higher
Reduction of bits (%) : (hot rolled) 36 or more
Hardness (hot rolled) 170 hb or less; (cold drawn) 152 ~ 217 hb
Heat treatment specification and microstructure
Y12Pb含铅易切削钢,被切削加工性好,不存在性能上的方向性,并有较高的力学性能,常用于制造较重要的机械零件、精密仪表零件等
Y12Pb化学成份：
碳 C ：0.08～0.16
硅 Si：≤0.15
锰 Mn：0.70～1.10
硫 S ：0.15～0.25
磷 P ：0.05～0.10
铅 Pb：0.15～0.35
力学性能：抗拉强度 σb (MPa)：(热轧)390～540; (冷拉)钢材厚度或直径 8～20时:530～755; ＞20～30时:510～735; ＞30时:490～685
伸长率 δ5 (％)：(热轧)≥22;(冷轧)≥7.0
断面收缩率 ψ (％)：(热轧)≥36
硬度 ：(热轧)≤170HB;(冷拉)152～217HB
热处理规范及金相组织

产品名称：Y12Pb易切削钢#含铅钢棒【Y12Pb圆钢】
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