8620 steel and 1045 steel

Otai exports various tool steel and alloy to more than 30 countries from Europe and America, Middle East, and Asia. Our steel materials meet DIN / ASTM / EN / JIS etc different international standards. Today we will talk about 8620 steel and 1045 steel’s difference and its application.

8620 is the structural steel with the hardenability guaranteed by American standard, and the standard is as follows: ASTM A29/ A29m-2015 (hot forged and cold processed carbon steel and alloy steel bar).

It has high hardenability, no tempering brittleness, good weldability. Also, it has little tendency to form a cold crack, good maintainability, and cold strain plasticity. Generally used in quenching and tempering or carburizing state, used for manufacturing small and medium-sized automobile, tractor engine, and gear in the transmission system. Also, it can be used for oil drilling and metallurgy open mine cone bit teeth and teeth body. Manufacturing steam turbine gear whole rotor internal combustion engine connecting rod valve section forgings all can be made by 8620 steel. At the same time, the surface of 8620 steel after carburizing heat treatment has relatively high hardness, wear-resistance, and contact fatigue strength. While the core retains good toughness and can withstand high impact load. It can be used as automobile bearing, spindle, gear, mechanical parts, and other impact-resistant, wear-resistant workpieces.

ASTM SAE AISI 1045 steel is one of the commonly used medium carbon steels with an average carbon content of 0.45%.

It has medium tensile properties, good strength, toughness, and wears resistance. It can be treated by annealing, flame treatment, or induction hardening. C1045 is also known as 1045 cold-rolled steel (cold worked), and 1045 hot rolled steel is known as 1045 HR. AISI SAE 1045 material is widely used in industrial applications where higher wear resistance and strength are required. Typical applications including Light gears, shafts, axles, spindles, pins, guide rods, connecting rods, bolts, worms, crankshafts, machine components, etc.

Otai does not act as a material handler. We possess proprietary technology and continuously iterates. We undertake every order to end and solve customer’s problems without any hesitation on responsibility. When customized special steel is hard to get, Otai settles satisfactorily completely.