X6NiCrTiMoB25-15-2 Stainless Steels to NF EN 10028-7

X6NiCrTiMoB25-15-2 - Specification & Application

  • NF EN 10028-7 - Flat products made of steels for pressure purposes - Part 7: Stainless steels
  • NF EN 10088-1 - Stainless steels - Part 1: List of stainless steels
  • NF EN 10216-5 (2004) - Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 5: Stainless steel tubes
  • NF EN 10222-5 - Steel forgings for pressure purposes - Part 5: Martensitic, austenitic and austenitic-ferritic stainless steels
  • NF EN 10269 - Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
  • NF EN 10302 (2002) - Creep resisting steels, nickel and cobalt alloys

Creep resisting steels, nickel and cobalt alloys

Chemical composition(wt.%) of X6NiCrTiMoB25-15-2 grade: to NF EN 10028-7

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.03 0.08
Si - 1.00
Mn 1.00 2.00
P - 0.025
S - 0.015
Cr 13.50 16.00
Ni 24.00 27.00
Mo 1.00 1.50
Ti 1.90 2.30
B 0.0030 0.010
V 0.10 0.50
Al - 0.35

X6NiCrTiMoB25-15-2 - Detail

Creep resisting steels, nickel and cobalt alloys

Mechanical properties of grade X6NiCrTiMoB25-15-2 NF EN 10028-7

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)
222 (≥) 544 (≥) 43 13 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical properties of grade X6NiCrTiMoB25-15-2 NF EN 10028-7

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
786 (≥) 723 (≥) 33 34 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 422
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
939 328 166

Equivalent Products

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