(Jiangsu) Shanghai Tengzhong Industry & Trade Co

Catalog
Purpose
Mainly used in the production of instruments, watch parts, automobiles, machine tools and other various machines that are subject to small forces and have strict requirements on size and finish. They require dimensional accuracy and finish. Standard parts that are strict and have relatively low mechanical performance requirements, such as gears, shafts, bolts, valves, bushings, pins, pipe joints, spring seat cushions and machine tool screws, plastic molding molds, surgical and dental surgical appliances, etc.
Chemical composition
Carbon
Manganese.~
Sulfur:.~
Phosphorus:.~
Lead.~
Mechanical properties
Tensile strength:
Yield strength:
Elongation ():
Reduction of area ():
Hardness:
Introduction
It is easy to cut Structural steel, free-cutting steel is a type of steel that is easy to be cut and processed (turning, milling, drawing, planing, drilling, etc.). It is also called steel for automatic machine tool processing, or automatic steel for short. It is produced to adapt to mechanical processing automation and assembly line production. This type of steel can be cut at higher cutting speeds and deeper cutting depths. Moreover, the cutting resistance is reduced due to the easy-cutting elements added to the steel, and the characteristics of the added elements themselves and the compounds formed lubricate the tool edge. The function of the part makes the chips easy to break and reduces wear, thereby improving the smoothness and precision of the processed parts, improving the tool life and production efficiency.
It is a lead-sulfur composite free-cutting structural steel. In lead-free cutting steel, lead is distributed in the steel as tiny simple metal particles and does not solidify in the steel. During the cutting process, strong friction occurs between the tool and the workpiece, causing the lead particles in the steel to be molten. Precipitates, thereby playing a lubricating role to improve the cutting performance of the steel, crushing the steel chips, reducing tool wear, and ultimately extending tool life. Compared with lead-free steel, the cutting performance of lead-containing steel can be improved, 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 as an important component in the manufacture of precision instrument parts, automobile parts, and various types of machinery. However, lead free-cutting steel has low contact fatigue, so it is not suitable for parts such as gears and bearings that bear heavy fatigue stress loads.
There is a tendency to be replaced by it. Its cutting performance is also excellent. Suitable for more stringent situations where it cannot be used.
Characteristics
. Easy turning iron has good processing performance: the product has smooth cutting, excellent material, stable processing,
good metallographic structure, stable chemical composition, small deviation, clean steel purity, and is not easy to Features such as damage to tools
It is extremely easy to cut on a lathe, and the service life of the tool and production efficiency are improved
. Good electroplating performance: it is very easy to cut and can drill deep holes, mill deep grooves and other processing efficiency
Bipu steel can greatly improve the electroplating performance of products, can replace copper products, and greatly reduce product costs
3. YITU's iron has good finish: the surface finish of the workpiece after turning is good
. YITU's Iron environmental protection: It complies with EU environmental certification standards and has passed Swiss environmental certification.
Products can be exported to machinery and equipment: woodworking machinery, ceramic machinery, paper machinery, glass machinery, food machinery,
Construction machinery, plastic machinery, textile machinery, jacks, hydraulic presses and other electrical product components: motor shafts,< br/> Fan shafts, sewing machine shafts and other furniture: especially exported metal furniture, such as coffee tables, chairs, outdoor furniture
Metal appliances: garden tools, barbecue grill racks, screwdrivers, anti-theft locks and other small hardware spare parts: such as guide rails ,
Machine keys, nuts, screws, round nails, hexagonal nails, octagonal nails and various standard parts of different specifications, etc. automobiles,
motorcycle spare parts, etc.