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X8CrNi25-21

Description

UK B.S. BS EN 10088-1, BS EN 10095, BS EN 10296-2 (2005), BS EN 10297-2 (2005), X8CrNi25-21 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: X8CrNi25-21
Category Class Grade Standard Country Application
Steel GradesSpecialsteel X8CrNi25-21 B.S. UK Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel

Chemical composition(mass fraction)(wt.%) of the X8CrNi25-21

C Si Mn P S Cr Ni Al N
≤0.10 ≤1.50 ≤2.00 ≤0.045 ≤0.015 24.00 -26.00 19.00 -22.00 ≤ ≥ ≤0.11

Mechanical Properties of steel grade X8CrNi25-21

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)
784 (≥) 641 (≥) 44 22 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade X8CrNi25-21

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 - -     0.32 -  
347 468 - 11.3 234   -  
143 - 42 32.2   441 234

Heat Treatment of steel grade X8CrNi25-21

Heat treated : 1764°C - 1927°C

Technological Curves of steel grade X8CrNi25-21

Relevant standard of X8CrNi25-21

BS EN 10088-1 Stainless steels - Part 1: List of stainless steels BS-EN-10088-1.pdf
BS EN 10095 Heat resisting steels and nickel alloys BS-EN-10095.pdf
BS EN 10296-2 (2005) Welded circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel BS-EN-10296-2-(2005).pdf
BS EN 10297-2 (2005) Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel BS-EN-10297-2-(2005).pdf

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