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].
| Properties | Ultimate tensile strength | Yield strength (MPa) | Elongation (%) | Hardness (BHN) | Impact energy (J) |
| Values | ≈600 MPa | 362 | 25 | 224 | 101 |
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