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Description

France AFNOR NF EN 10088-1, NF EN 10088-2, NF EN 10088-3, NF EN 10088-4, NF EN 10088-5, NF EN 10151, NF EN 10270-3, 1.4568 Specialsteel Steel wire for mechanical springs - Part 3: Stainless spring steel wire and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 1.4568
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 1.4568 Precipitation-Hardening AFNOR France Steel wire for mechanical springs - Part 3: Stainless spring steel wire

Chemical composition(mass fraction)(wt.%) of the 1.4568

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

Mechanical Properties of steel grade 1.4568

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)
636 (≥) 938 (≥) 23 31 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade 1.4568

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
34 - -     0.23 -  
673 599 - 34.3 412   -  
476 - 21 34.2   313 232

Heat Treatment of steel grade 1.4568

Heat treated : 1181°C - 1147°C

Technological Curves of steel grade 1.4568

Relevant standard of 1.4568

NF EN 10088-1 Stainless steels - Part 1: List of stainless steels NF-EN-10088-1.pdf
NF EN 10088-2 Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes NF-EN-10088-2.pdf
NF EN 10088-3 Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes NF-EN-10088-3.pdf
NF EN 10088-4 Stainless steels - Part 4: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for construction purposes NF-EN-10088-4.pdf
NF EN 10088-5 Stainless steels - Part 5: Technical delivery conditions for bars, rods, wire, sections and bright products of corrosion resisting steels for construction purposes NF-EN-10088-5.pdf
NF EN 10151 Stainless steel strip for springs - Technical delivery conditions NF-EN-10151.pdf
NF EN 10270-3 Steel wire for mechanical springs - Part 3: Stainless spring steel wire NF-EN-10270-3.pdf

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