The difference between No.35 steel and No. 45 steel

Comparison of No.35 steel and No. 45 steel:
No. 45 steel is a high-quality carbon structural steel, its strength is 61, HRC is 48-55, and it is used more mechanically; No.35 is also a high-quality carbon structural steel, but its strength is only 54, and its HRC is 38- 45.

The difference between No.35 steel and No. 45 steel can be distinguished from the sparks. The carbon content of No.35 steel is relatively low. The spark tails are drooping, the color is slightly darker, and there are spear tail flowers from time to time. The amount of flowers is not much, and the awn line is thicker. For No. 45, the tail is straight and the tip streamline is bifurcated, with greater shooting power and more flowers. The carbon content of No. 45 steel is higher than that of No.35 steel, and the hardness is higher than that of No.35 steel.