Table 1 Chemical composition of the material and corresponding standard values
Material | C | Si | Mn | Cr | Mo | Ni | Nb |
|---|---|---|---|---|---|---|---|
Q345R GB713–2014 [23] | 0.160 ≤ 0.20 | 0.255 ≤ 0.55 | 1.412 1.20–1.60 | 0.014 ≤ 0.30 | < 0.001 ≤ 0.08 | 0.0061 ≤ 0.30 | – – |
SA508-3 ASME code [24] | 0.226 ≤ 0.25 | 0.194 0.15–0.40 | 1.475 1.20–1.50 | 0.956 0.40–1.00 | 0.469 0.45–0.60 | 0.227 ≤ 0.25 | – – |
18MnMoNbR GB713–2014 [23] | 0.140 ≤ 0.21 | 0.264 0.15–0.50 | 1.315 1.20–1.60 | 0.166 ≤ 0.30 | 0.524 0.45–0.55 | 0.160 ≤ 0.30 | 0.036 0.025–0.05 |
S30408 GB12771–2019 [25] | 0.048 < 0.08 | 0.479 ≤ 0.75 | 1.170 ≤ 2.00 | 18.33 18.00–20.00 | 0.049 – | 8.248 8.00–11.00 | 0.0059 – |