Research Article

Metallographic Investigation on Postweld Heat-Treated0.21%C-1020 Steel Plates Joined by SMAW Method

Table 1

Physical properties of 1020 (0.21%-C) steel [3].

PropertiesUltimate tensile strengthYield strength (MPa)Elongation (%)Hardness (BHN)Impact energy (J)

Values≈600 MPa36225224101