What is the corresponding domestic steel grade of A36 American Standard Carbon Structural Plate? A36 steel plate use

　　1. Brief introduction of A36 steel plate

　　ASTM 36 is an American standard carbon structural plate,

　　Two, A36 steel plate executive standard

　　Implementation of standard ASTM A36/A36M-03a, (equivalent to ASME specification)

　　2. Steel plant: Wuyang Iron and Steel

　　3. Application of A36 steel plate

　　This standard applies to riveted, bolted, and welded structures for bridges and buildings, and structural steel quality carbon steel shapes, plates, and bars for general purposes. The yield of A36 steel plate is about 240MP, and the yield value will decrease with the increase of the thickness of the material. Due to the moderate carbon content, the comprehensive performance is good, and the strength, plasticity and welding performance are well matched, and the most widely used.

　　4. A36 steel plate impact test

　　The impact toughness test uses a Charpy V-notch specimen. The impact toughness index is Akv. For the above-mentioned grades B, C, and D steels, they are all required to reach Akv≥27J under their respective temperature requirements. At different impact temperatures, ASTMA36 is an American standard carbon structural plate, which implements the standard ASTM A36/A36M-03a. The tensile strength of A36 is 58~80 Ksi (about 400~550MPa), and the yield strength is 36 Ksi (about 250MPa).

　　The tensile strength of Q235 is 370~500MPa, and the yield strength is 235MPa.

　　The tensile strength of SS400 is 400~510 MPa, and the yield strength is 245Mpa.

　　These three materials can often substitute for each other in real life.

　　5. Chemical composition of A36 steel plate:

　　C: ≤0.25, Si≤0.40, Mn: ≤0.80-1.20, P≤0.04, S: ≤0.05, Cu≥0.20 (when copper-containing steel is specified).

　　6. Mechanical properties:

　　Yield strength: ≥250.

　　Tensile strength: 400-550.

　　Elongation: ≥20.

　　In the national standard, the material similar to A36 is Q235