45# heat treatment

The carbon content of 45# steel is in the range of 0.42%~0.50%, which is equivalent to the JIS S45C steel. 45# steel is widely used in machinery, mainly used to make small cross-section quenched and tempered parts with heavy load and large normalized parts with low stress, as well as surface hardened parts that do not require high core strength, such as tips and guide posts , hands and other parts.

45# steel heat treatment specification:
Normalizing, 850℃; Quenching, 840℃; Tempering, 600℃
Metallographic structure: ferrite + pearlite
Delivery status: delivery without heat treatment or heat treatment (annealing, normalizing or high temperature tempering)
The price of 45# steel is generally in the Shanghai market, based on the hot coil in the Shanghai market, which is about 300 yuan/ton higher than the hot coil price. The current price of 45# steel is about 4,200 yuan/ton, which is a reasonable range.