... 55-3, St 55-3U, St 55-3N steel plate, St 55-3, St 55-3U, St 55-3N ... 55-3, St 55-3U, St 55-3N steel plate Application: St 55-3, St 55-3U, St 55 ... Si:0.15—0.50 Nb:0.02—0.04 Al:0.02 N:0.009 St 55-3U C: ... 55-3, St 55-3U, St 55-3N steel plate Mechanical properties: St55-3 Yield Strength ReH:355—345 Strength ... -b.com www.316l-stianless.com www.steel-plate-sheet.com www.shipbuilding-steel.com www.stainless-steel ...