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ISO H7

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ISO X15CrN26 ISO X7CrNi18 9
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Description

ISO ISO ISO H7 ISO standard iron grain size heat resistant steel and ISO H7 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: ISO H7
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy ISO H7 ISO ISO ISO standard iron grain size heat resistant steel
ISO H1
ISO H2
ISO X10CrZlSi13
ISO H3
ISO H4
ISO X10CrAlSi18
ISO H5
ISO X10CrAlSi25
ISO H6
ISO X15CrN26

Chemical composition(mass fraction)(wt.%) of the ISO H7

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) N(%)
Max 0.20 Max 1.0 Max 1.00 Max 0.040 Max 0.030 24.0-28.0 Max 1.0 0.15-0.25

Mechanical Properties of steel grade ISO H7

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)
859 (≥) 556 (≥) 24 23 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade ISO H7

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
43 - -     0.41 -  
327 152 - 12.3 432   -  
699 - 12 42.2   144 344

Heat Treatment of steel grade ISO H7

Heat treated : 1553°C - 1478°C

Technological Curves of steel grade ISO H7

Cross Reference Table (Equivalent Grade) of ISO H7

Grade Standard Country Application
30X13H7C2 ГОСТ Russia Martensite Heat-Resistant Steel
09X17H7Ю Austenitic - Martensitic steel
ISO H7 ISO ISO ISO standard iron grain size heat resistant steel
XH70Ю ГОСТ Russia Russia COST standard deformation of high temperature alloy
XH70MBTЮБ ГОСТ Russia Russia COST standard deformation of high temperature alloy
XH70BMЮT ГОСТ Russia Russia COST standard deformation of high temperature alloy
XH70BMTЮ ГОСТ Russia Russia COST standard deformation of high temperature alloy
XH70BMTЮΦ ГОСТ Russia Russia COST standard deformation of high temperature alloy
XH75MБTЮ ГОСТ Russia Russia COST standard deformation of high temperature alloy
XH75BMЮ ГОСТ Russia Russia COST standard deformation of high temperature alloy
XH77TЮP ГОСТ Russia Russia COST standard deformation of high temperature alloy
XH77TЮPy ГОСТ Russia Russia COST standard deformation of high temperature alloy
XH78T ГОСТ Russia Russia COST standard deformation of high temperature alloy
H70MΦ ГОСТ Russia Russia COST standard deformation of high temperature alloy
H70MΦB ГОСТ Russia Russia COST standard deformation of high temperature alloy
XH77TЮ(ЭИ437A) ГОСТ Russia Russia COST standard deformation of high temperature alloy
GH706 GBT China wrought Fe/Ni-base superalloy
GH747 GBT China wrought Fe/Ni-base superalloy
GH761 GBT China wrought Fe/Ni-base superalloy
GH708 GBT China wrought Fe/Ni-base superalloy
ISO X15CrN26 ISO X7CrNi18 9
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