X2CrTiNb18 Stainless Steels to NF EN 10028-7

X2CrTiNb18 - 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 10088-2 - Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
  • NF EN 10088-3 - Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
  • NF EN 10088-4 - Stainless steels - Part 4: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for construction purposes
  • NF EN 10296-2 (2005) - Welded circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel

Welded circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel

Chemical composition(wt.%) of X2CrTiNb18 grade: to NF EN 10028-7

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.030
Si - 1.00
Mn - 1.00
P - 0.040
S - 0.015
Cr 17.50 18.50
Mo - -
Ni - -
Ti 0.10 0.60
Nb 3×C+0.30 1.00
N - 0.045

X2CrTiNb18 - Detail

Welded circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel

Mechanical properties of grade X2CrTiNb18 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)
138 (≥) 636 (≥) 41 32 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical properties of grade X2CrTiNb18 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
476 (≥) 339 (≥) 31 21 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 231
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
327 794 757

Equivalent Products

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