Aisi 1045 S45c

S45C is a Japanese equivalent of AISI 1045, also known as JIS S45C. It has similar properties to AISI 1045 and is often used in manufacturing gears, shafts, and molds.

Both AISI 1045 and S45C can be hardened through heat treatment, such as quenching and tempering, to achieve higher strength and wear resistance. They are also both machinable, weldable, and formable, making them versatile materials for many applications.

Product Feature

1. Physical and chemical properties: made of high carbon steel, they have good strength and toughness, wear resistance and machinability, and they are also easy to process steel.

2. Use: Widely used in machinery and automation industry, such as bearings, chains, gears, couplings and needle wheels.

3. Standard materials: international standard materials. The quality of the products and the production process are strictly controlled. They are generally used for transmission systems that require high strength.

4. Availability of resources: It can be easily found in the market, and the price is also relatively low, making it one of the preferred materials in many industrial and manufacturing sectors.

5. Direct use: The physical and chemical properties are easy to meet the needs of a variety of different industrial applications, they are widely used, from bicycle manufacturing to auto parts, and even train parts.

Chemical composition Element ratio (%) :

Carbon C:0.42 ~ 0.50;

Chromium Cr: ≤0.25;

Manganese Mn: 0.50 ~ 0.80;

Nickel Ni: ≤0.25;

P: ≤0.035;

Sulfur S: ≤0.035;

Silicon Si: 0.17 ~ 0.37

Mechanical property

Sigma b \ MPa: p. 600

Sigma s \ MPa: p. 355

The delta \ % 5:16 or higher

Bits of \ % : 40 or higher

Hardness \HB:≤197

The recommended heat treatment temperature of 45 steel stipulated in GB/T699-1999 standard is 850℃ normalizing, 840℃ quenching, 600℃ tempering, and the performance is ≥355MPa yield strength

The GB/T699-1999 standard stipulates that the tensile strength of 45 steel is 600MPa, the yield strength is 355MPa, the elongation is 16%, and the section shrinkage is 40%

Specific application

No. 45 steel is widely used in machinery, without heat treatment: HB≤229; Heat treatment: normalizing; Impact power: Aku≥39J; High strength, plasticity and toughness is still good, 45# steel quenched before no tempering, hardness greater than HRC55 (up to HRC62) is qualified, after heat treatment, and then tempering can reach HRC42-46, so that it can ensure its good mechanical properties, but also get the surface hardness requirements, It is used to make small section tempering parts with large load and large normalizing parts with small stress, as well as surface quenched parts with low core strength requirements, such as pins, guide posts, watch hands and other parts.

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