Material ‐ BS 10216 ‐ 5 EN X6CrNiNb18 ‐ 10

Standard Specification for Seemless Steel Tubes for Pressure Purposes

Group - Ferrous Stainless Steel Alloys

Sub Group - BS 10216 ‐ 5 Seemless Steel Tubes for Pressure Purposes

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

Grade Belongs to the Industry - Tube

Chemical Composition
CarbonC %0.080 max.
SiliconSi %1.000 max.
ManganeseMn %2.000 max.
PhosphorusP %0.040 max.
SulphurS %0.015 max.
ChromiumCr %17.000 ‐ 19.000
NickelNi %9.000 ‐ 12.000
NiobiumNb %10*C ‐ 1.000
IronFe %Balance
Heat Treatment
Solution Annealing
Mechanical Properties
Tensile Strength in Mpa510 ‐ 740
Yield Strength in Mpa205 min.
Elongation in %30 min.
Reduction of Area in %
Hardness in BHN
Impact in Joule60 min. @ ‐ 196 ̊ C

Cross Reference Table

Material Standard Country Grade Belong to the Industry
1.455 DIN Germany Steel
1.455 BS British Steel
X6CrNiNb18 10 DIN Germany Steel and Tube
X6CrNiNb18 10 ISO International Steel, Forging and Bar
X6CrNiNb18 10S ONORM Australia Steel
X6CrNiNb18 10 AFNOR NF France Steel, Bar and Rods
Z8CNNb18 ‐ 10 AFNOR NF France Steel