Overview
Easy lathe cutting round steel comprises cold-drawn or hot-rolled steel bars optimized for turning operations. These bars typically meet ASTM A108 or DIN standards, with diameters ranging from 5mm to 150mm. Manufacturers often add sulfur or lead to improve chip-breaking characteristics. The material's consistent concentricity reduces machine vibration, making it ideal for high-volume production. Compared to standard round steel, it achieves 20-30% faster machining speeds while extending tool life through reduced cutting resistance.
Structure and Working Principle
The bars feature a homogeneous microstructure achieved through controlled rolling processes. Free-cutting variants contain manganese sulfide inclusions that act as internal lubricants during machining. This microstructure promotes short, broken chips rather than long, stringy ones. When used in lathes, the material's predictable behavior allows for stable cutting parameters. The round cross-section ensures even force distribution during rotation, critical for maintaining dimensional accuracy in finished parts.
Key Features
Superior surface finish (typically Ra 3.2μm or better) minimizes post-machining polishing. The material maintains tight diameter tolerances (usually h9 or better), reducing setup time for precision work. Notable grades include 12L14 (free-cutting) for general purposes and 4140 for high-strength applications. Some variants feature phosphorization coatings that further enhance tool life and surface quality during high-speed machining.
Application Areas
Automotive sector: Production of transmission shafts and axle components. Industrial machinery: Manufacturing of hydraulic cylinder rods and linear motion parts. Construction: Fabrication of anchor bolts and fastener stock. The material's versatility also extends to medical device components and agricultural machinery parts where precise turned profiles are required.
Maintenance and Precautions
Store bars horizontally on racks to prevent bending. Apply rust preventive oil for long-term storage in humid environments. Always verify material certifications (mill test reports) for critical applications. During machining, use sharp carbide inserts with positive rake angles. Avoid excessive feed rates that may cause work hardening. Proper chip evacuation is essential to prevent surface scoring on the workpiece.
B2B Procurement Guide
Specify required standards (e.g., ASTM, JIS, DIN) and tolerance classes when ordering. Consider ordering pre-cut lengths to reduce material waste for specific part production. For bulk purchases (10+ tons), negotiate mill-direct pricing. Verify supplier capability to provide material traceability documentation. Just-in-time delivery options help minimize inventory costs for frequent users.
Related Manufacturers
- 主营：sa675gr70、34crnimo6、60si2crva、f11圆钢、f92圆钢、f51圆钢、f91圆钢、b16圆钢、25#圆钢、h13圆钢、f53圆钢、f52圆钢、f55圆钢、a36圆钢、f22圆钢、f60圆钢、30crmntih、20crnimoa、20crmnmoa、30crnimo8、17crnimo6、30crmnsia、40crmnmoa、20crni2mo、35crmnsia
- 主营：高温合金钢板 圆棒、镍基合金钢管
- 主营：研磨铝棒、7075铝棒板、2011铝棒、精密小直径圆钢303F、2024铝棒、4032铝棒、2017铝棒、2A11铝棒、5083铝棒、超平铝板、MIC-6超平板、电极钨铜、W70钨铜、W75钨铜、W80钨铜、C18150铬锆铜、日本NGK铍铜、弹簧钢
- 主营：易切削钢、模具钢
- 主营：钛合金、镁合金、铝合金、切削钢、弹簧钢、轴承钢、合金钢、高速钢、模具钢、纯铁、铸铁、工具钢、不锈钢、高温合金
- 主营：模具钢、合金钢、高速钢、12L14易切削圆钢、优特钢、锰钢、镁合金、钛材、铜材、不锈钢、铝合金、高速粉末钢、透气钢
- 主营：合金钢管、合金钢板、容器板、合金圆钢、哈氏合金、镍基合金管、镍基合金板、无缝管、不锈钢管、不锈钢板、不锈钢棒
- 主营：201不锈钢天沟、304不锈钢天沟、430不锈钢天沟、食品级不锈钢圆钢、不锈钢天沟、不锈钢水槽、不锈钢天沟水槽、不锈钢管、不锈钢板、不锈钢角钢、不锈钢棒、304D不锈钢天沟
- 主营：冷拉扁钢、冷拉方钢、无缝方管、冷拔圆钢、易切削圆钢、Q355方管、Q460C高强钢板
- 主营：不锈钢无缝钢管、不锈钢带、不锈钢板、630圆钢、S17400 圆钢、镍基合金钢圆钢、21800圆钢、不锈钢棒、合金锻件、C276光圆、316H原平钢板、430镜面板、蒙乃尔合金钢棒、BA无缝钢管、EP无缝钢管、CCS无缝钢管、不锈钢镜面板、不锈钢高压管、卫生级无缝钢管、不锈钢风管、油磨拉丝抗指纹钢板、超宽不锈钢板、S20910锻件、441不锈钢卷带、2507原平板
- 主营：镍基合金板、铜镍合金管、高温合金管件、车床加工、蒙乃尔400、因科洛伊800、英科耐尔600、哈氏合金C276、HAl77-2黄铜管、T2紫铜管、B30铜镍无缝管、TP2螺纹管、B10铜镍法兰、C70600铜镍板、C71500铜镍管、冷凝换热管、冷凝器用铜镍管、船舶用铜镍合金管件、化工用合金管、换热器用铜管、铜镍三通/异径管件、翅片管
- 主营：铝板带、alcoa6061、铬锆铜、可切削、黄铜排、铍铜板、h32铝板、铝棒量、黄铜板、冷拉钢、黄铜线、导热嘴、铍铜片、耐磨sk7、弹簧钢、鉻锆铜、锰钢板、7075-t651、红铜带、铝厚板、大圆棒、冷轧板、锡青铜、性铝棒、鼻梁条
- 主营：特种圆钢、镍基合金、不锈钢、特种钢板
- 主营：板材、型材、模具钢、镍基合金、不锈钢、钛合金
- 主营：银亮钢、实心圆棒、热电偶、取样器、研磨棒、研磨球、定碳杯、工业偶、金属电偶、热分析样杯、铬钢滚珠、不锈钢线、磨光钢材、高强螺栓、扭剪螺栓、钢水浇筑杯、紧固件定制、铁水分析仪、精密轴承滚珠、轴承圆锥滚子、不锈钢圆棒材、精密直线光轴