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ISO H15

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X6CrNi25-21 X15CrNiSi25-21
#ISO-H15

Description

International ISO ISO 4955 (2005), ISO 9327-5, ISO H15 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: ISO H15
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel ISO H15 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 ISO H15

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 ISO H15

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)
729 (≥) 422 (≥) 33 11 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade ISO H15

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
24 - -     0.12 -  
718 974 - 32.3 124   -  
792 - 41 21.2   214 133

Heat Treatment of steel grade ISO H15

Heat treated : 1673°C - 1932°C

Technological Curves of steel grade ISO H15

Relevant standard of ISO H15

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
X6CrNi25-21 X15CrNiSi25-21
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