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X7CrNiAl17-7

Description

International ISO ISO 15510 (2010), ISO 16143-1 (2004), ISO 16143-2 (2004), ISO 16143-3 (2005), ISO 6931-1, ISO 6931-2, ISO/TS 15510 (2003), X7CrNiAl17-7 Specialsteel Stainless steels - Chemical composition and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: X7CrNiAl17-7
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel X7CrNiAl17-7 Precipitation-Hardening ISO International Stainless steels - Chemical composition

Chemical composition(mass fraction)(wt.%) of the X7CrNiAl17-7

C Si Mn P S Cr Ni Mo N Al
≤0.09 ≤0.07 ≤1.00 ≤0.040 ≤0.015 16.00 -18.00 6.50 -7.80 ≤ ≥ ≤ ≥ 0.70 -1.50

Mechanical Properties of steel grade X7CrNiAl17-7

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)
359 (≥) 333 (≥) 43 11 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade X7CrNiAl17-7

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
22 - -     0.13 -  
936 166 - 42.3 231   -  
631 - 42 32.2   213 244

Heat Treatment of steel grade X7CrNiAl17-7

Heat treated : 1327°C - 1153°C

Technological Curves of steel grade X7CrNiAl17-7

Relevant standard of X7CrNiAl17-7

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 Stainless steels for springs - Part 1: Wire ISO-6931-1.pdf
ISO 6931-2 Stainless steels for springs - Part 2: Narrow strip ISO-6931-2.pdf
ISO/TS 15510 (2003) Stainless steels - Chemical composition ISO-TS-15510-(2003).pdf

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