P355NL1 steel phaj yog steel phaj rau European txheem siab hlab ntsha. Nws yog tsim raws li European tus qauv EN10028. Lub phaj steel yog tsim los ntawm converter smelting los yog hluav taws xob rauv refining. Nws yog ib tug nplua-grained tua hlau. Q355NL1 muaj zog tiv thaiv, tsis kub tsis kam thiab siab tawm los. Lub zog thiab toughness. P355NL1 steel phaj qib qhia: "P": qhia European txheem thawv phaj; "355": qhia tias qhov tsawg kawg nkaus lub zog ntawm cov hlau phaj yog 355, hauv MPa; "NL1": qhia tias cov hlau phaj yog tshwj xeeb qis-kub zoo qib hlau.
Tshuaj muaj pes tsawg leeg % ntawm steel P355NL1 (1.0566):
| C | Si | Mn | Ni | P | S | Cr | Mo | V | N | Nb | Ti | Al | Cu | - |
| max 0.18 | max 0.5 | 1.1 - 1.7 | max 0.5 | max 0.025 | max 0.015 | max 0.3 | max 0.08 | max 0.1 | max 0.012 | max 0.05 | max 0.03 | max 0.02 | max 0.3 | Nb+Ti+V < 0.12 |
Mechanical zog ntawm steel P355NL1 (1.0566):
| Nominal thickness (hli): | rau 60 | 60 - 100 | 100 - 150 | 150 - 250 |
| Rm- Tensile zog (MPa) (+ N) | 490-630 | 470-610 | 460-600 | 450-590 |
| Nominal thickness (hli): | rau 16 | 16 - 40 | 40 - 60 | 60 - 100 | 100 - 150 | 150 - 250 |
| ReH- Tsawg tshaj tawm lub zog (MPa) (+ N) | 355 | 345 | 335 | 315 | 305 | 295 |
| KV- Impact zog (J) transverse, (+ N) | -40 degree 27 |
-20 degree 35 |
0 degree 43-50 |
+20 degree 47-60 |
| KV- Impact zog (J) longitud., (+N) | -50 degree 30 |
-40 degree 40 |
-20 degree 50-53 |
0 degree 65-70 |
+20 degree 70-80 |
| Nominal thickness (hli): | rau 60 | 60 - 250 |
| A- Min. elongation ntawm pob txha (%) (+ N) | 22 | 21 |
