The weldability of A514 Gr Q alloy steel plate is good. It means that under certain process and construction conditions, A514 Gr Q alloy steel plate can obtain good performance after welding. Weldability is a measure of the hot workability of steel. Weldability can be divided into weldability in construction and weldability in use. Weldability in construction refers to the sensitivity of cracking in weld metal and near seam zone, and hardening sensitivity of steel in near seam zone. Good weldability means that under certain welding process conditions, the weld metal and steel near the seam do not produce cracks. Weldability in use means that the mechanical properties of weld and HAZ steel are not lower than those of base metal.
Structural steel is a category of steel construction material that is produced with a particular cross section or shape, and some specified values of strength and chemical composition. A514 Gr Q alloy steel plate, Structural steel plates are normally supplied in the as-rolled condition. Our structural steel plate are supplied with thickness range 3mm to 350mm. The plates may be ordered normalized or stress relieved, or both. steel plates shall be normalized. steel plates and sheets shall be quenched and tempered.
"A283C is same as A283 Gr C, A283 grade C. A283C plate technical parameters: A283C plate chemical composition - max. 0.24% carbon, max. 0.40% silicon, max. 0.90% manganese, max. 0.035% phosphorus, max. 0.040% sulphuric, and min. 0.20% Cu. A283C plate mechanical properties: min. yield strength is 205 MPa, tensile strength is 380-515MPa, min. elongation is 22% in 8"" and 25% in 2"". Tolerance of A283C plate is subject to ASTM A6. The density of A514 Gr Q alloy steel plate, A283C plate is 7.85g/cm3."
Preheating cutting: The most effective way to prevent steel plate cutting cracks is to preheat before cutting. Before flame cutting, the steel plate is usually preheated, and the preheating temperature mainly depends on the quality level and thickness of the steel plate. The preheating method can be carried out with flame burner, electronic heating pad, or heating furnace. In order to determine the preheating effect of the steel plate, the required temperature should be tested at the heating point.
