Material ‐ BS 10216 ‐ 2 EN 1.7386+I

Standard Specification for Seemless Steel Tubes for Pressure Purposes

Group - Ferrous Stainless Steel Alloys

Sub Group - BS 10216 ‐ 2 Seemless Steel Tubes for Pressure Purposes

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

Grade Belongs to the Industry - Steel and Tube

Chemical Composition
CarbonC %0.080 ‐ 0.150
SiliconSi %0.250 ‐ 1.000
ManganeseMn %0.300 ‐ 0.600
PhosphorusP %0.025 max.
SulphurS %0.020 max.
ChromiumCr %8.000 ‐ 10.000
MolybdenumMo %0.900 ‐ 1.100
AluminiumAl %0.040 max.
CopperCu %0.300 max.
IronFe %Balance
Heat Treatment
Isothermal Annealing
Mechanical Properties
Tensile Strength in Mpa460 ‐ 640
Yield Strength in Mpa210 min.
Elongation in %18 min.
Reduction of Area in %
Hardness in BHN
Impact in Joule27 min. @ RT

Cross Reference Table

Material Standard Country Grade Belong to the Industry
1.7386+I EN European Union Steel and Tube
1.7386+I DIN Germany Steel and Tube
X11CrMo91TA ISO International Steel and Tube
X11CrMo91TN+TT ISO International Steel and Tube
X12CrMo9 1 DIN Germany Steel and Tube
17116 CSN Czech Republic Steel
X12Cr9KG UNI Italy Steel and Forging