AISI 1045 • JIS S45C • DIN C45 Steel Round Bar and Sheet on Stock

AISI 1045 steel is one of the most popular carbon steel. And people call it as S45C steel in Japan. It is C45 steel in Germany. Its hardness is not high, so it is easy to do the processing of cutting. In the mould field, it must take the heat treatment before the use.

It is used widely in the production of machines due to its great mechanical property. But it is the mild steel, the properties of tempering are not good. The hardness can up to 42-46HRC by tempering. If you need a high surface hardness and keep the great mechanical property, must take the job of carburizing and quenching for surface, that is really helpful.

1045 Steel Chemical Composition:

1. Carbon: 0.43%-0.50%
2. Silicon: 0.17%-0.37%
3. Manganese: 0.60%-0.90%
4. Sulfur: ≤0.050%
5. Phosphorus: ≤0.040%
6. Chromium: ≤0.25%
7. Nickel: ≤0.25%
8. Copper: ≤0.25%

1045 Steel Properties:

• Tensile Strength: 61MPa
• Yield Strength: 36MPa
• Hardness: ≤229HB(No Heat Treatment); ≤197HB( Annealed Steel)

About Heat Treatment:

• Normalizing: 850℃
• Quenching: 840℃
• Tempering: 600℃

1045 Steel Application:

It is used to manufacture parts with high strength requirements, such as gears, shafts, piston pins, etc., and mechanical parts, forgings, stampings, bolts and nuts that are not very stressed.

As a professional 1045 steel supplier in China, we always waitting for you.