1.4057
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X17CrNi16-2
Martensitic stainless steel
AISI431 steel, martensitic and hardenable, it is characterised by high corrosion and fatigue resistance, superior to common chrome steels, with optimised machinability. It is the most corrosion-resistant of the martensitic steels, also effective in a marine environment. Withstands up to 750°C in continuous use and 800°C in intermittent use. This steel is forged between 1150-900°C, requiring slow cooling and immediate annealing.
Number
1.4057
Aisi
431
Grade
X17CrNi16-2
Chemical composition 1.4057
Indicative values in %
Carbon (C)
0,19
Silicon (Si)
0,25
Manganese (Mn)
0,40
Chromium (Cr)
15,60
Molybdenum (Mo)
–
Nickel (Ni)
1,60
Tungsten (W)
–
Aluminium (Al)
–
Cobalt (Co)
–
Vanadium (V)
–
Titanium (Ti)
–
