What is steel plate Q550D

What is steel plate Q550D?
Q550D steel plate belongs to low alloy high strength steel. Adding a small amount of alloy elements into the steel plate Q550D can improve its related properties.

1. Chemical composition of steel plate Q550D:
The chemical composition of steel plate Q550D: C ≤ 0.18, Si ≤ 0.60, Mn ≤ 2.0, P ≤ 0.030, S ≤ 0.025, 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.

2. Mechanical properties of steel plate Q550D:
The mechanical properties of steel plate Q550D: yield strength ≥ 550 MPa, tensile strength 600-780 MPa, elongation after fracture ≥ 16%, impact energy ≥ 47J.

3. Application of steel plate Q550D:
Q550D steel plate 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.