27MnCrB5-2 is widely used

27MnCrB5-2 is a low-alloy high-strength steel whose chemical composition mainly includes carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), chromium (Cr) and boron (B) ). The specific chemical composition range is as follows:

Carbon (C): 0.24~0.30%
Silicon (Si): ≤0.40%
Manganese (Mn): 1.10~1.40%
Phosphorus (P): ≤0.025%
Sulfur (S): ≤0.035%
Chromium (Cr): 0.30~0.60% (please note that some information gives a range of 0.90~1.20%, and the specific range may vary due to different standards or manufacturers)
Boron (B): 0.0008~0.0030% (some data also give a range of 0.0008~0.005%)
The specific contents of these elements have an important impact on the mechanical and physical properties of 27MnCrB5-2. For example, the content of carbon and manganese helps to increase the strength and hardness of steel, while elements such as silicon, phosphorus, and sulfur may affect the processability and toughness of steel. At the same time, the addition of chromium and boron helps improve the wear resistance and hardenability of steel.

27MnCrB5-2 steel has excellent cutting performance, corrosion resistance and wear resistance, so it is widely used in many fields.

First of all, in the automotive industry, 27MnCrB5-2 steel is often used to manufacture high-strength and high-wear-resistant parts, such as gears, bearings, drive shafts, and wheels. Due to its good mechanical properties and heat treatment responsiveness, it is able to meet the automotive industry's demand for high-performance parts.

Secondly, in the machinery industry, the steel also performs well. It is often used to manufacture mechanical parts that need to withstand high wear and stress, such as industrial gears, bearings and other mechanical parts.

In addition, because 27MnCrB5-2 steel has excellent mechanical properties and wear resistance, it is also used in the aerospace field and can meet the high requirements for material performance in this field.

In general, 27MnCrB5-2 steel has been widely used in automobile manufacturing, machinery manufacturing, aerospace and other engineering fields due to its excellent performance and wide applicability.