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ISO 7

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X12CrSi13 X20Cr13
#ISO-7

Description

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

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

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

C Si Mn P S Cr Ni Mo N
0.08 -0.15 ≤1.00 ≤1.50 ≤0.040 0.15 - ≥ 12.00 -14.00 ≤ ≥ ≤0.06 ≤ ≥

Mechanical Properties of steel grade ISO 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)
272 (≥) 757 (≥) 23 21 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade ISO 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
43 - -     0.31 -  
131 822 - 34.3 313   -  
223 - 43 22.2   333 121

Heat Treatment of steel grade ISO 7

Heat treated : 1846°C - 1516°C

Technological Curves of steel grade ISO 7

Relevant standard of ISO 7

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/TS 15510 (2003) Stainless steels - Chemical composition ISO-TS-15510-(2003).pdf
X12CrSi13 X20Cr13
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