45# Seamless Steel Pipe
First, the function, structural characteristics and technical requirements of shaft parts
Shaft parts are one of the typical parts often encountered in machines. It is mainly used to support transmission components, transmit torque and bear loads. Shaft parts are rotating parts whose length is greater than the diameter, and generally consist of the outer cylindrical surface, conical surface, inner hole and thread of the concentric shaft and the corresponding end surface. According to different structural shapes, shaft parts can be divided into optical shafts, stepped shafts, hollow shafts and crankshafts.
45# is the name in GB, called in JIS: S45C, called 1045, 080M46 in ASTM, and called DIN: C45
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