X10CrWMoVNb9 Stainless Steels to EN 10216-2

X10CrWMoVNb9 - Specification & Application

  • EN 10216-2 - Pipes for pressure purposes with specified elevated temperature properties. Boiler tubes

Boiler tubes are used in heat exchange appliances in which the energy is transferred from one medium to the other. The pipes are manufactured from carbon and low-alloy steel grades which are resistant to loads under high pressure and temperatures. They ar

Chemical composition(wt.%) of X10CrWMoVNb9 grade: to EN 10216-2

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.07 0.13
Cr 8.50 9.50
Mn 0.30 0.60
Mo 0.30 0.60
N 0.03 0.070
Nb 0.04 0.09
Ni - 0.40
P - 0.02
S - 0.010
Si - 0.50
V 0.15 0.25
W 1.50 2.00
B 0.0010 0.0060
Al - 0.040

X10CrWMoVNb9 - Detail

Boiler tubes are used in heat exchange appliances in which the energy is transferred from one medium to the other. The pipes are manufactured from carbon and low-alloy steel grades which are resistant to loads under high pressure and temperatures. They are used for the construction of power engineering appliances such as: boilers, heating coils, stoves, heaters, heat exchangers.

Mechanical properties of grade X10CrWMoVNb9 EN 10216-2

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
857 (≥) 112 (≥) 13 32 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical properties of grade X10CrWMoVNb9 EN 10216-2

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
266 (≥) 663 (≥) 23 42 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 144
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
596 552 427
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