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X6CrNi25-21

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ISO H14 ISO H15
#X6CrNi25-21

Description

International ISO ISO 4955 (2005), ISO 9327-5, X6CrNi25-21 Specialsteel Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 5: Stainless steels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: X6CrNi25-21
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel X6CrNi25-21 Austenite ISO International Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 5: Stainless steels

Chemical composition(mass fraction)(wt.%) of the X6CrNi25-21

C Si Mn P S Cr Ni
≤0.08 ≤1.50 ≤2.00 ≤0.045 ≤0.030 24.00 -26.00 19.00 -22.00

Mechanical Properties of steel grade X6CrNi25-21

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)
264 (≥) 472 (≥) 14 34 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade X6CrNi25-21

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
13 - -     0.12 -  
884 779 - 34.3 323   -  
652 - 23 42.2   324 411

Heat Treatment of steel grade X6CrNi25-21

Heat treated : 1135°C - 1575°C

Technological Curves of steel grade X6CrNi25-21

Relevant standard of X6CrNi25-21

ISO 4955 (2005) Heat-resistant steels ISO-4955-(2005).pdf
ISO 9327-5 Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 5: Stainless steels ISO-9327-5.pdf
ISO H14 ISO H15
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