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Description

International ISO ISO 15510 (2010), ISO 16143-1 (2004), ISO 16143-2 (2004), ISO 16143-3 (2005), ISO 6931-1 (1994), ISO 6931-2 (2005), ISO 9328-7 (2011), ISO/TS 15510 (2003), ISO 20A Specialsteel Stainless steels - Chemical composition and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: ISO 20A
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel ISO 20A Austenite ISO International Stainless steels - Chemical composition

Chemical composition(mass fraction)(wt.%) of the ISO 20A

C Si Mn P S Cr Ni Mo N
≤0.07 ≤1.00 ≤2.00 ≤0.045 ≤0.030 16.50 -18.50 10.50 -13.00 2.50 -3.00 ≤0.11

Mechanical Properties of steel grade ISO 20A

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)
142 (≥) 123 (≥) 42 24 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical Properties of steel grade ISO 20A

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 - -     0.24 -  
985 798 - 33.3 133   -  
496 - 11 43.2   444 323

Heat Treatment of steel grade ISO 20A

Heat treated : 1946°C - 1727°C

Technological Curves of steel grade ISO 20A

Relevant standard of ISO 20A

ISO 15510 (2010) Stainless steels -- Chemical composition ISO-15510-(2010).pdf
ISO 16143-1 (2004) Stainless steels for general purposes -- Part 1: Flat products ISO-16143-1-(2004).pdf
ISO 16143-2 (2004) Stainless steels for general purposes -- Part 2: Semi-finished products, bars, rods and sections ISO-16143-2-(2004).pdf
ISO 16143-3 (2005) Stainless steels for general purposes -- Part 3: Wire ISO-16143-3-(2005).pdf
ISO 6931-1 (1994) Stainless steels for springs - Part 1: Wire ISO-6931-1-(1994).pdf
ISO 6931-2 (2005) Stainless steels for springs - Part 2: Narrow strip ISO-6931-2-(2005).pdf
ISO 9328-7 (2011) Steel flat products for pressure purposes - Technical delivery conditions - Part 7: Stainless steels ISO-9328-7-(2011).pdf
ISO/TS 15510 (2003) Stainless steels - Chemical composition ISO-TS-15510-(2003).pdf

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