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Chemical composition %   of   steel    (1.4406):   EN 10088-2-2005
Particular ranges of sulphur content may provide improvement of particular properties. For machinability a controlled sulphur content of 0.015 % to 0.030% is recommended and permitted. For weldability, a controlled sulphur content of 0.008 % to 0.030 % is recommended and permitted. For polishability, a controlled sulphur content of 0.015 % max is recommended.
Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast.
C Si Mn Ni P S Cr Mo N
max   0.03 max   1 max   2 10 - 12.5 max   0.045 max   0.015 16.5 - 18.5 2 - 2.5 0.12 - 0.22

Mechanical properties of   steel   (1.4406)

Rm - Tensile strength (MPa) (+A) 580-800

Rp0.2 0.2% proof strength (MPa) (+A) 280-315

KV - Impact energy (J) transverse, (+A) +20°
KV - Impact energy (J) longitud., (+A) +20°

A - Min. elongation at fracture (%) (+A) 30-40
A - Min. elongation at fracture (%) longitud., (+AT) 45

  Brinell hardness   (HB):   (+A) 250

Properties of   steel   X2CrNiMoN17-11-2 (1.4406)
Resistance to intergranular corrosion: in the delivery condition - yes; in the sensitized condition - yes 
Steel shal not be applied at a metal temperature lower than -270 ° C