Grado de acero
A25, A25P, GR.A, GR.B, GR.C, X42, X46, X52, X56, X60, X65, X70, L175, L210, L245, L290, L320, L360, L390, L415, L450, L485, Q195, Q235, Q355, C250, C350, C350 L0, C450, C450 L0, S235JRH, S275J0H, S355J0R, S355J0H, GR.1, GR.2, STK290, STK400, STK490, STK500, STK540 y etc.