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Description

International ISO ISO 6207 (1992), ISO 6208 (1992), ISO 9722 (1992), ISO 9723 (1992), ISO 9724 (1992), ISO 9725 (1992), ISO H21 Specialsteel Nickel and nickel alloy forgings and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: ISO H21
Category Class Grade Standard Country Application
Steel GradesSpecialsteel ISO H21 ISO International Nickel and nickel alloy forgings

Chemical composition(mass fraction)(wt.%) of the ISO H21

C Si Mn P S Cr Ni Co Fe Ti Cu
0.08 -0.15 ≤1.00 ≤1.00 ≤ ≥ ≤0.020 18.00 -21.00 remaining - ≥ ≤5.00 ≤5.00 0.20 -0.60 ≤0.50

Mechanical Properties of steel grade ISO H21

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)
957 (≥) 976 (≥) 14 14 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade ISO H21

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
23 - -     0.24 -  
321 994 - 34.3 224   -  
157 - 14 14.2   433 341

Heat Treatment of steel grade ISO H21

Heat treated : 1454°C - 1673°C

Technological Curves of steel grade ISO H21

Cross Reference Table (Equivalent Grade) of ISO H21

Relevant standard of ISO H21

ISO 6207 (1992) Seamless nickel and nickel alloy tube ISO-6207-(1992).pdf
ISO 6208 (1992) Nickel and nickel alloy plate, sheet and strip ISO-6208-(1992).pdf
ISO 9722 (1992) Nickel and nickel alloys - Composition and forms of wrought products ISO-9722-(1992).pdf
ISO 9723 (1992) Nickel and nickel alloy bars ISO-9723-(1992).pdf
ISO 9724 (1992) Nickel and nickel alloy wire and drawing stock ISO-9724-(1992).pdf
ISO 9725 (1992) Nickel and nickel alloy forgings ISO-9725-(1992).pdf

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