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ISO A4

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X1CrNiMoCu25-20-5 X1CrNiMoCu25-20-7
#ISO-A4

Description

International ISO ISO 15510 (2010), ISO 16143-2 (2004), ISO 16143-3 (2005), ISO 9328-7 (2011), ISO/TS 15510 (2003), ISO A4 Specialsteel Stainless steels - Chemical composition and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: ISO A4
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel ISO A4 Austenite ISO International Stainless steels - Chemical composition

Chemical composition(mass fraction)(wt.%) of the ISO A4

C Si Mn P S Cr Ni Mo N Cu
≤0.02 ≤0.75 ≤2.00 ≤0.035 ≤0.015 19.00 -20.00 23.50 -26.00 4.00 -5.00 ≤0.15 1.20 -2.00

Mechanical Properties of steel grade ISO A4

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)
771 (≥) 329 (≥) 44 42 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 443

Physical Properties of steel grade ISO A4

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
41 - -     0.34 -  
367 516 - 43.3 122   -  
494 - 21 32.2   131 214

Heat Treatment of steel grade ISO A4

Heat treated : 1371°C - 1163°C

Technological Curves of steel grade ISO A4

Relevant standard of ISO A4

ISO 15510 (2010) Stainless steels -- Chemical composition ISO-15510-(2010).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 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
X1CrNiMoCu25-20-5 X1CrNiMoCu25-20-7
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