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X6CrNiMoNb17-12

Description

International ISO ISO 9329-4 (1997), ISO 9330-6 (1997), ISO 9328-5, X6CrNiMoNb17-12 Specialsteel Welded steel tubes for pressure purposes - Technical delivery conditions - Part 6: Longitudinally welded austenitic stainless steel tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: X6CrNiMoNb17-12
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel X6CrNiMoNb17-12 Austenite ISO International Welded steel tubes for pressure purposes - Technical delivery conditions - Part 6: Longitudinally welded austenitic stainless steel tubes

Chemical composition(mass fraction)(wt.%) of the X6CrNiMoNb17-12

C Si Mn P S Cr Mo Ni Nb
≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.030 16.50 -18.50 11.00 -14.00 2.00 -2.50 10×C% -1.00

Mechanical Properties of steel grade X6CrNiMoNb17-12

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
252 (≥) 172 (≥) 21 12 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 441

Physical Properties of steel grade X6CrNiMoNb17-12

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
12 - -     0.13 -  
479 553 - 22.3 134   -  
763 - 21 11.2   134 431

Heat Treatment of steel grade X6CrNiMoNb17-12

Heat treated : 1359°C - 1363°C

Technological Curves of steel grade X6CrNiMoNb17-12

Cross Reference Table (Equivalent Grade) of X6CrNiMoNb17-12

Grade Standard Country Application
X6CrNiMoNb17-12-2
X6CrNiMoNb17-12-2
X6CrNiMoNb17-12-2

Relevant standard of X6CrNiMoNb17-12

ISO 9329-4 (1997) Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Austenitic stainless steels ISO-9329-4-(1997).pdf
ISO 9330-6 (1997) Welded steel tubes for pressure purposes - Technical delivery conditions - Part 6: Longitudinally welded austenitic stainless steel tubes ISO-9330-6-(1997).pdf
ISO 9328-5 Steel plates and strips for pressure purposes - Technical delivery conditions - Part 5: Weldable fine grain steels, thermomechanically rolled ISO-9328-5.pdf

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