sa573 gr 70 structural carbon steel rolling process

sa573 gr 70 structural carbon steel products order online: 8*2400*12000, 9*2300*6870, 10*2400*8300, 10*2400*8450, 12*2820*11500, 14*1950*10000, 14*1950*10450, 14*1950*10500, 14*1950*10550, 14*1950*10600, 14*1950*10700, 14*1950*10800, 14*2150*8500, 14*2150*9300, 14*2400*10000, 16*2150*10950, 20*1950*9000, 20*1950*9150, 25*2100*8400, 25*2100*8650, 25*2400*11600.

Q420C steel belongs to low alloy high strength steel. Q420 is named as the steel with yield strength of 420MPa, C means the impact temperature is 0 ℃, and Q is the abbreviation of yield strength. Chemical composition of Q420C steel: C ≤ 0.20, Si ≤ 0.50, Mn ≤ 1.70, P ≤ 0.035, S ≤ 0.035, Nb ≤ 0.07, V ≤ 0.20, Ti ≤ 0.20, Cr ≤ 0.30, Ni ≤ 0.80, Cu ≤ 0.30, N ≤ 0.015, Mo ≤ 0.20.
The mechanical properties of Q420C steel are: yield strength ≥ 340 Mpa, tensile strength 500-680 Mpa, elongation after fracture ≥ 18%, impact energy 34J. sa573 gr 70 structural carbon steel, Q420C steel has good mechanical properties and weldability, good cold and hot workability.

The main reference for structural design of steel structure engineering is the static and dynamic characteristics of the steel used under various actions, such as elasticity, plasticity, strength, toughness, fatigue and other mechanical properties. Therefore, the sa573 gr 70 structural carbon steel and so on steel used in the construction of steel structure engineering will limit its strength, plasticity, impact toughness and weldability. Steel structure engineering requires high tensile strength and yield point of steel. High yield point can reduce the cross-section of the component, so as to reduce the weight, save steel and reduce the cost. High tensile strength can increase the safety of the structure.