
Hot Rolled Round: dia.20-250 mm.
Forged Round: dia.200-600 mm.
EAF+LF+VD, Hot Rolled or Forged, Black surface or Machined surface (Peeled, Turned, Grinded),
Annealed or Q+T, UT 100% Passed.
Si | Mn | P | S | Cr | Mo | Ni | Al | |
0.30 0.37 | ≤ 0.40 | 0.40 0.70 | ≤ 0.025 | ≤ 0.035 | 1.50 1.80 | 0.15 0.25 | 0.85 1.15 | 0.80 1.20 |
Al-alloyed nitriding steel grade for large-sections.
1.8550 is used as nitriding steel for quenched and tempered parts of machinery and is frequently used in automotive industry. This material resists a high wear stress. Many of these components will be nitrided.