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X2CrNiMoCuWN25-7-4

Description

France AFNOR NF EN 10028-7, NF EN 10088-1, NF EN 10088-2, NF EN 10088-3, NF EN 10216-5 (2004), NF EN 10217-7, NF EN 10250-4, NF EN 10253-3, NF EN 10253-4, NF EN 10272, NF EN 10297-2 (2005), X2CrNiMoCuWN25-7-4 Specialsteel Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: X2CrNiMoCuWN25-7-4
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel X2CrNiMoCuWN25-7-4 Duplex steel AFNOR France Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel

Chemical composition(mass fraction)(wt.%) of the X2CrNiMoCuWN25-7-4

C Si Mn P S Cr Mo Ni Cu W N
≤0.030 ≤1.00 ≤1.00 ≤0.035 ≤0.015 24.00 -26.00 3.00 -4.00 6.00 -8.00 0.50 -1.00 0.05 -1.00 0.20 -0.30

Mechanical Properties of steel grade X2CrNiMoCuWN25-7-4

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)
259 (≥) 524 (≥) 43 41 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade X2CrNiMoCuWN25-7-4

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
41 - -     0.33 -  
492 321 - 22.3 321   -  
579 - 22 31.2   311 112

Heat Treatment of steel grade X2CrNiMoCuWN25-7-4

Heat treated : 1561°C - 1439°C

Technological Curves of steel grade X2CrNiMoCuWN25-7-4

Cross Reference Table (Equivalent Grade) of X2CrNiMoCuWN25-7-4

Grade Standard Country Application
X2CrNiMoCuWN25-7-4
X2CrNiMoCuWN25-7-4

Relevant standard of X2CrNiMoCuWN25-7-4

NF EN 10028-7 Flat products made of steels for pressure purposes - Part 7: Stainless steels NF-EN-10028-7.pdf
NF EN 10088-1 Stainless steels - Part 1: List of stainless steels NF-EN-10088-1.pdf
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-10088-2.pdf
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-10088-3.pdf
NF EN 10216-5 (2004) Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 5: Stainless steel tubes NF-EN-10216-5-(2004).pdf
NF EN 10217-7 Welded steel tubes for pressure purposes - Technical delivery conditions - Part 7: Stainless steel tubes NF-EN-10217-7.pdf
NF EN 10250-4 Open die steel forgings for general engineering purposes - Part 4: Stainless steels NF-EN-10250-4.pdf
NF EN 10253-3 Butt-welding pipe fittings - Part 3: Wrought austenitic and austenitic-ferritic (duplex) stainless steels without specific inspection requirements NF-EN-10253-3.pdf
NF EN 10253-4 Butt-welding pipe fittings - Part 4: Wrought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements NF-EN-10253-4.pdf
NF EN 10272 Stainless steel bars for pressure purposes NF-EN-10272.pdf
NF EN 10297-2 (2005) Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel NF-EN-10297-2-(2005).pdf

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