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X7CrNi18-9

Description

International ISO ISO 15510 (2010), ISO 16143-3 (2005), ISO 4955 (2005), ISO 9327-5, ISO 9328-5, ISO 9329-4, ISO/TS 15510 (2003), X7CrNi18-9 Specialsteel Stainless steels - Chemical composition and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: X7CrNi18-9
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel X7CrNi18-9 Austenite ISO International Stainless steels - Chemical composition

Chemical composition(mass fraction)(wt.%) of the X7CrNi18-9

C Si Mn P S Cr Ni
≤0.10 ≤1.00 ≤2.00 ≤0.045 ≤0.030 17.00 -19.00 8.00 -11.00

Mechanical Properties of steel grade X7CrNi18-9

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)
546 (≥) 567 (≥) 31 22 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 443

Physical Properties of steel grade X7CrNi18-9

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
11 - -     0.22 -  
793 878 - 23.3 442   -  
862 - 22 12.2   322 244

Heat Treatment of steel grade X7CrNi18-9

Heat treated : 1789°C - 1265°C

Technological Curves of steel grade X7CrNi18-9

Relevant standard of X7CrNi18-9

ISO 15510 (2010) Stainless steels -- Chemical composition ISO-15510-(2010).pdf
ISO 16143-3 (2005) Stainless steels for general purposes -- Part 3: Wire ISO-16143-3-(2005).pdf
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
ISO 9328-5 Steel plates and strips for pressure purposes - Technical delivery conditions - Part 5: Weldable fine grain steels, thermomechanically rolled ISO-9328-5.pdf
ISO 9329-4 Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Austenitic stainless steels ISO-9329-4.pdf
ISO/TS 15510 (2003) Stainless steels - Chemical composition ISO-TS-15510-(2003).pdf

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