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European EN SA/EN 10028-7, 1.4418 Specialsteel Specification for flat products made of steels for pressure purposes - Part 7: Stainless steels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 1.4418
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 1.4418 Precipitation-Hardening EN European Specification for flat products made of steels for pressure purposes - Part 7: Stainless steels

Chemical composition(mass fraction)(wt.%) of the 1.4418

C Si Mn P S Ni Cr Al Cu Ti Fe N Mo W
≤0.20 ≤0.50 ≤1.00 ≤ ≥ ≤ ≥ ≤ ≥ ≤12.50 ≤ ≥ ≤ ≥ ≤ ≥ ≤remaining ≤ ≥ ≤ ≥ ≤3.00

Mechanical Properties of steel grade 1.4418

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)
123 (≥) 978 (≥) 13 24 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical Properties of steel grade 1.4418

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
23 - -     0.41 -  
853 575 - 12.3 312   -  
931 - 11 33.2   231 212

Heat Treatment of steel grade 1.4418

Heat treated : 1644°C - 1616°C

Technological Curves of steel grade 1.4418

1.4418 TTT Curves

1.4418 TTT Curves

Cross Reference Table (Equivalent Grade) of 1.4418

Relevant standard of 1.4418

SA/EN 10028-7 Specification for flat products made of steels for pressure purposes - Part 7: Stainless steels SA-EN-10028-7.pdf

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