Marinox and Aquashaft identify a
series of austenitic stainless steels precipitation hardening grades and
duplex steels intended for the manufacture of propeller shafts in the
shipbuilding industry.
Utilising these types of steel the designer can reduce the shaft dimensions and hence use smaller supports and seals.
The simultaneous reduction of weight and hydrodynamic resistance permits better performances and greater efficiency.
VALBRUNA GRADE | W.N. | AISI NUMBER | UNS NUMBER | EN SYMBOL |
---|---|---|---|---|
MARINOX16 | 1.4401/1.4404 | 316L | S31600/S31603 | X5CrNiMo17-12-2/X2CrNiMo17-12-2 |
MARINOX17 | 1.4542 | 630 | S17400 | X5CrNiCuNb16-4 |
MARINOX19 | - | 304HM/XM-21 | S30452 | - |
MARINOX22/22HS | - | XM-19 | S20910 | - |
MARINOX25 | 1.4462 | 2205 | S31803/S32205 | X2CrNiMoN22-5-3 |
MARINOX16 | MARINOX17 | MARINOX19 | MARINOX22 | MARINOX22HS | MARINOX25 | |
---|---|---|---|---|---|---|
STRENGTH | * | ***** | *** | **** | ***** | ** |
TOUGHNESS | ** | * | *** | *** | *** | **** |
CORROSION RESIST. | **** | * | ** | ***** | ***** | **** |