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Grades List
Category Steel grade Standard Country Application
Special Alloy 1.4875 AFNOR France
Valve Internal Combustion Engines steel (NF-EN 1009-1998)
Special Alloy X55CrMnNiN20-8 AFNOR France
Valve Internal Combustion Engines steel (NF-EN 1009-1998)
Special Alloy 1.4871 AFNOR France
Valve Internal Combustion Engines steel (NF-EN 1009-1998)
Special Alloy X53CrMnNiN21-9 AFNOR France
Valve Internal Combustion Engines steel (NF-EN 1009-1998)
Special Alloy 1.4866 AFNOR France
Valve Internal Combustion Engines steel (NF-EN 1009-1998)
Special Alloy X33CrNiMnN23-8 AFNOR France
Valve Internal Combustion Engines steel (NF-EN 1009-1998)
Special Alloy 1.4718 AFNOR France
Valve Internal Combustion Engines steel (NF-EN 1009-1998)
Special Alloy 1.4731 AFNOR France
Valve Internal Combustion Engines steel (NF-EN 1009-1998)
Special Alloy X40CrSiMo10-2 AFNOR France
Valve Internal Combustion Engines steel (NF-EN 1009-1998)
Special Alloy X45CrSi9-3 AFNOR France
Valve Internal Combustion Engines steel (NF-EN 1009-1998)
Special Alloy NC20TA AFNOR France
Steel Exhaust Valves
Special Alloy NC15Fe7TA AFNOR France
Steel Exhaust Valves
Special Alloy Z85CDV18-02 AFNOR France
Steel Exhaust Valves
Special Alloy Z80CNS20-02 AFNOR France
Steel Exhaust Valves
Special Alloy Z60CMDVNb21-10Az AFNOR France
Steel Exhaust Valves
Special Alloy Z55CMN20-08Az AFNOR France
Steel Exhaust Valves
Special Alloy Z53CMNS21-09Az AFNOR France
Steel Exhaust Valves
Special Alloy Z53CMNNb21-09-02Az AFNOR France
Steel Exhaust Valves
Special Alloy Z53CMN21-09Az AFNOR France
Steel Exhaust Valves
Special Alloy Z50CMNNb21-09-02Az AFNOR France
Steel Exhaust Valves
Special Alloy Z45CS9 AFNOR France
Steel Exhaust Valves
Special Alloy Z45CNW18-09 AFNOR France
Steel Exhaust Valves
Special Alloy Z40CSD10 AFNOR France
Steel Exhaust Valves
Special Alloy Z35CNWS14-14 AFNOR France
Steel Exhaust Valves
Special Alloy Z25CNWS20-09 AFNOR France
Steel Exhaust Valves
Special Alloy Z20CN21-12Az AFNOR France
Steel Exhaust Valves
Special Alloy Z12CKNDWNb21-20-20 AFNOR France
Steel Exhaust Valves
Special Alloy Z12CKNDWNb21-20-20 AFNOR France
The vent valve steel
Special Alloy A35-586 347F20 AFNOR France
Resistant to high boron steel(NF A 36-580(1983))
Special Alloy Z6CNNb18.12B AFNOR France
Resistant to high boron steel(NF A 36-580(1983))
Special Alloy A35-586 321F20 AFNOR France
Resistant to high boron steel(NF A 36-580(1983))
Special Alloy Z6CNT18.12B AFNOR France
Resistant to high boron steel(NF A 36-580(1983))
Special Alloy A35-586 316F22 AFNOR France
Resistant to high boron steel(NF A 36-580(1983))
Special Alloy Z6CNDNb17.13B AFNOR France
Resistant to high boron steel
Special Alloy A35-586 316F21 AFNOR France
Resistant to high boron steel