SUM22 Free Cutting Steel Bar Bright Round Bar AISI/SAE1215

SUM22 is a free cutting structural steel, which is a type of steel that is easy to be cut by (turning, milling, pulling, planing, drilling, etc.). It is also called steel for automatic machine tool processing, referred to as automatic steel for short. SUM22 belongs to lead sulfur composite free cutting structural steel. In lead free cutting steel, lead is distributed in the steel as tiny elemental metal particles and does not solidly melt in the steel. During the cutting process, strong friction occurs between the tool and the workpiece, causing the lead particles in the steel to precipitate in a molten state, which plays a lubricating role in improving the cutting performance of the steel, making the steel chips finely fragmented, reducing tool wear, and ultimately extending tool life. Compared with non lead containing steel, the cutting performance of lead containing steel can be improved by 20 to 50%, while the mechanical properties and heat treatment properties remain basically unchanged, and there is no impact on cold and hot workability and weldability. Lead free cutting steel has been widely used in the manufacture of precision instrument parts, automotive parts, and important parts of various types of machinery. However, lead free cutting steel has low contact fatigue, so it is not suitable for gears, bearings, and other components that bear high fatigue stress loads. SUM22 has a tendency to be replaced by it. Its cutting performance is also excellent. Suitable for more stringent situations where SUM22 cannot be used.

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Wuxi Zhanlu International Trade Co., Ltd.: Our company's address is located in Wuxi, Jiangsu Province, China, where the steel resources are very rich. Our company is a comprehensive import and export steel trade enterprise. We can provide steel trade, logistics, warehousing and other services. Our iron and steel products mainly include excellent and special steel, mold steel and stainless steel. In addition, our company can also provide special steel products, such as cold drawn round steel, bright round steel Polished round steel, cold drawn seamless pipe, cold drawn hexagonal steel, cold drawn flat steel; Forged round steel, forged flat steel and other special steel products.
Our company's business philosophy is "quality is life and service is soul". Based on the principle of complete variety and customer first, our product sales range is wide: China, Europe, the United States, Japan, South Korea, Southeast Asia, Africa and other countries. At the same time, we also provide services for the Chinese procurement agents of many international companies, because we can provide rich inventory and strong sources of goods, which can solve their needs very well, It has won the trust of many customers.
Our company has professional technology and rich experience. We can provide quality control, spot supply, futures customization, international trade and other services, including customs clearance, commodity inspection, cargo transportation, insurance and foreign exchange transactions. We are ready to provide customers with various high-quality products and fast and convenient services.