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Ambient temperature mechanical properties of precipitation hardening stainless steel flat products to BS EN 10088-2


BS EN 10088-2 is the material standard for stainless steel sheet, plate and strip for general purposes. This article gives the 0.2% proof strength, tensile strength and elongation levels, where specified, of the 2 precipitation hardening grades listed in the standard.

The data given is not intended to replace that shown in individual standards to which reference should always be made.

BS EN 10088-2:2014 Edition

BS EN 10088-2 was originally published in 1995. The second version, BS EN 10088-2:2005, has been superseded by BS EN 10088-2:2014.
The tables shown here have the 2014 tensile property ranges of the 2 precipitation hardening steels 1.4542 and 1.4568. The specified properties have not been changed for these grades.

BS EN 10088-2 mechanical properties – precipitation hardening stainless steels


Designation Mechanical properties min unless stated
Steel name Steel number Product Heat treatment condition2) Proof strength Rp0.2 N/mm2 Tensile strength Rm N/mm2 Elongation3),4) %
Form1) Thickness mm max
Precipitation hardening stainless steels in the heat treated condition-special grades (martensitic steel)
X5CrNiCuNb16-4 1.4542 C 8 AT5) <1275 5
C 8 P13006) 1150 1300 3
C 8 P9006) 700 900 6
P 50 P10707) 1000 1070/1270 10
P 50 P9507) 800 950/1150 12
P 50 P8507) 600 850/1050 14
P 50 SR6308) <1050
X7CrAl17-7 1.4568 C 8 AT5),9) <1030 19
C 8 P14506) 1310 1450 2


  1. C= Cold rolled strip; H= hot rolled strip; P= hot rolled plate.
  2. AT = solution annealed; P = precipitation hardened; SR= strength relieved.
  3. The values apply for test pieces with a gauge length of 80mm and a width of 20mm. Test pieces with a gauge length of 50mm and a width of 12.5mm can also be used.
  4. The values apply for test pieces with a gauge length of 5.65 So0.5
  5. Delivery condition.
  6. Condition of application; other precipitation hardening temperatures may be agreed.
  7. If ordered in the finally treated condition.
  8. Delivery condition for further processing; final treatment according to table A.3 of BS EN 10088-2.
  9. For spring-hard rolled condition see EN 10151


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