Material – BS 318 S 17

Standard Specification for Seemless Steel Tubes for Pressure Purposes

Group - Ferrous Stainless Steel Alloys

Sub Group - BS 318 S 17 Seemless Steel Tubes for Pressure Purposes

Application - Intended for Valve, Pump, General Engineering, Automotive and Other Industries

Grade Belongs to the Industry - Steel and Wire

Chemical Composition
CarbonC %0.080 max.
SiliconSi %1.000 max.
ManganeseMn %2.000 max.
PhosphorusP %0.045 max.
SulphurS %0.030 max.
ChromiumCr %18.000 - 20.000
MolybdenumMo %2.000 - 3.000
NickelNi %11.000 - 14.000
NiobiumNb %1.000 max.
IronFe %Balance
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Heat Treatment
Solution Annealing
Mechanical Properties
Tensile Strength in Mpa900 max.
Yield Strength in Mpa-
Elongation in %-
Reduction of Area in %-
Hardness in BHN-
Impact in Joule-

Cross Reference Table

Material Standard Country Grade Belong to the Industry
1.4580 EN European Union Tube
1.458 DIN Germany Steel, Sheet, Plate and Strip
10216-5 BS British Steel, Sheet, Plate and Strip
X6CrNiMoNb17 12 2 DIN Germany Steel, Sheet, Plate and Strip
X6CrNiMoNb17 12 2 UNE Spain Steel, Bar, Wire, Rod and Forging
X6CrNiMoNb17 12 2 KKW ONORM Australia Steel
X6CrNiMoNb17-12-2 AFNOR NF France Steel, Bar and Rods