... , boiler feed water heaters and other heat exchangers, and de-aerating heaters.Chemical composition (%):C: 0.30 max Mn: 2.00 max S: 0 ... (UNS N04400 / W.Nr. 2.4360and 2.4361):Marine - valves and pumps, pump and propeller shafts, marine fixtures and fasteners, electrical and electronic components, springs.Chemical ...