Material ‐ BS 10216 ‐ 5 EN X1NiCrMoCu31 ‐ 27 ‐ 4

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 %0.020 max.
SiliconSi %0.700 max.
ManganeseMn %2.000 max.
PhosphorusP %0.030 max.
SulphurS %0.010 max.
ChromiumCr %26.000 ‐ 28.000
NickelNi %30.000 ‐ 32.000
MolybdenumMo %3.000 ‐ 4.000
NitrogenN %0.110 max.
CopperCu %0.700 ‐ 1.500
IronFe %Balance
Heat Treatment
Solution Annealing
Mechanical Properties
Tensile Strength in Mpa500 ‐ 750
Yield Strength in Mpa215 min.
Elongation in %35 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
1.4563 BS British Steel, Plate and Strip
1.4563 DIN Germany Steel, Plate and Strip
X1NiCrMoCu31 ‐ 27 ‐ 4 UNI Italy Steel, Plate and Strip
X1NiCrMoCu31 ‐ 27 ‐ 4 AFNOR NF France Steel
X1NiCrMoCu31 ‐ 27 ‐ 4 DIN Germany Steel, Bar and Rod
X1NiCrMoCu31 27 4 DIN Germany Steel, Bar and Rod
Z2NCDU31 ‐ 27 AFNOR NF France Steel