SA572 Gr.50 Structural Carbon Steel Plate, ASTM A572 Gr.50 Medium Carbon Steel Plate, ASME SA572 Grade 50 Ship Building Quality Plate, ASTM A572 Gr.50 Hot Rolled Carbon Steel Sheet Exporter In India ASTM A572 Grade 50 Carbon Steel Plate is mainly used for bridge plate,gusset plate,base plate and structural steel stiffeners.ASTM A572 Grade 42/50 Carbon Steel Plates, ASTM A572 When nickel is added in ASME SA 572 Gr. 50 Carbon Steel Perforated Coils, for instance, the austenite structure of iron is stabilized. ASTM A572 Gr. 42 CS Plates have a mixed microstructure of austenite and ferrite, the aim usually being to produce a 50 / 50 mixes, although in