Material 40cr precision seamless tube, its chemical composition according to what standard inspection

Wuxi Duorunde Steel Tube Co., Ltd (I come to answer); 40Cr is a kind of alloy structural steel, containing a certain amount of chromium, nickel, molybdenum and other alloying elements, with high strength, hardness, wear resistance and corrosion resistance. Precision seamless tube is a kind of high-precision and high-finish steel tube, which usually needs to be processed through several procedures and has superior dimensional accuracy and surface quality.

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In terms of chemical composition, 40Cr Precision Seamless Tubes should meet the following standards:

1. Carbon (C): 0.37% to 0.44%

2. Silicon (Si): 0.17% to 0.37%

3. Manganese (Mn): 0.50% to 0.80%

4. Phosphorus (P): ≤0.035%

5. Sulfur (S): ≤0.035%

5.

6. Chromium (Cr): 0.80% to 1.10%

7. Nickel (Ni): ≤0.35%

8. Molybdenum (Mo): ≤0.15%

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In addition, in order to improve the performance of steel, other alloying elements may be added, such as titanium (Ti), aluminum (Al), niobium (Nb) and so on.

In the manufacturing process, 40Cr Precision Seamless Tubes need to go through several processes, including smelting, continuous casting, rolling, straightening, non-destructive testing and so on. The process parameters and equipment precision of these processes will affect the quality of the final product. In addition, for some high-precision and high-finish steel tubes, polishing, drawing and other treatments are also required to obtain a more excellent surface quality.

In terms of application, 40Cr Precision Seamless Tubes are mainly used in the manufacture of mechanical parts, petrochemical equipment, steel structure and other fields. Due to its high strength and wear resistance, it is commonly used in the manufacture of parts and structural components that are subjected to high loads. In addition, due to its excellent corrosion resistance, it is also commonly used in the manufacture of petrochemical equipment and other corrosive environment parts.

In short, 40Cr Precision Seamless Tube is a high-precision, high-gloss steel tube with high strength, hardness, abrasion resistance and corrosion resistance. It should comply with the relevant standards in terms of chemical composition, and the manufacturing process requires multiple procedures and processes, with a wide range of applications. For occasions that require the use of such steel tubes, the selection of 40Cr Precision Seamless Tubes that meet the standards can ensure the reliability of its quality and performance.