What material is Q550C steel pipe?
Q550C steel pipe is a kind of low alloy high strength steel. A small amount of alloy elements are added into the Q550C steel pipe to improve its relevant properties. This kind of steel pipe is named after Q, which is the abbreviation of yield strength. The following value 550 is the value of yield strength. C is the impact temperature of 0℃, that is, the yield strength of Q550C steel pipe is 550 MPa, and the low temperature impact steel is 0℃.

Chemical composition of Q550C steel pipe: C ≤ 0.18, Si ≤ 0.60, Mn ≤ 2.0, P ≤ 0.030, S ≤ 0.030, Nb ≤ 0.11, V ≤ 0.12, Ti ≤ 0.20, Cr ≤ 0.80, Ni ≤ 0.80, Cu ≤ 0.80, N ≤ 0.015, Mo ≤ 0.30, B ≤ 0.004, Al ≤ 0.015.

Mechanical properties of Q550C steel pipe: yield strength ≥ 550 MPa, tensile strength 600-780 MPa, elongation after fracture ≥ 16%, impact energy ≥ 55J.

Application of Q550C steel pipe:
Q550C steel pipe is mainly used for manufacturing various large-scale engineering structural components and construction machinery. Due to its high strength, it can meet the requirements of large-scale and lightweight construction machinery.