ZZ Group supplies 20Cr2Ni4A round steel , covering a wide diameter range from φ2mm to φ500mm. Whether it is for miniature precision instrument parts or large-scale engineering machinery main shafts, matching specifications can be found. All products strictly follow national standards to ensure that the size tolerance and surface quality meet the requirements of high-precision processing.
Key points of the process: The key to maximizing the potential of the material
To fully utilize the potential of hot-rolled alloy steel round bar, the heat treatment process is of vital importance. A notable feature of 20Cr2Ni4A is that it is not suitable for direct quenching after carburizing treatment. The key point of this process is to reduce the residual austenite on the surface and avoid its adverse effects on the dimensional stability and contact fatigue life of the part. Through an optimized heat treatment plan, the material surface can be ensured to have high hardness, while the core maintains high toughness, achieving the optimal performance balance.
Why choose ZZ Group?
ZZ Group, headquartered in Yangpu District, Shanghai, was established in the early 1980s with a registered capital of 200 million RMB. It is a large-scale comprehensive enterprise group that integrates steel trading, steel processing and distribution, steel raw materials, real estate development, and financial investment. The hot rolled alloy steel round bars we supply all come from high-quality steel mills and are equipped with complete pre-sale consultation and after-sale technical support to ensure the smooth operation of your production and manufacturing.
Whether it is bulk purchasing or customized requirements, ZZ Group can provide you with reliable alloy steel round bar solutions through its strong capital strength and professional service team. Choose 20Cr2Ni4A and choose ZZ Group to inject lasting power into your heavy-duty components.