Ambient temperature mechanical properties of austenitic-ferritic (duplex) stainless steel bright bars to BS EN 10088-3

Introduction

BS EN 10088-3 gives the mechanical properties for stainless steel semi-finished products, bars, rods and sections for general purposes. The properties given in this article are proof strength, tensile strength, elongation and hardness of austenitic-ferritic (duplex) stainless steels.

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

BS EN 10088-3:2014 Edition

BS EN 10088-3 was originally published in 1995. The second version, BS EN 10088-3:2005, has been superseded by BS EN 10088-3:2014. 4 new grades were added:

1.4062, 1.4162, 1.4662, 1.4482

The tables shown here only have the 2014 tensile property ranges of the austenitic-ferritic steels.

This article is specifically for bright products.

BS EN 10088-3 mechanical properties - austenitic-ferritic (duplex) stainless steels bright bar including lengths cut from wire

 

Designation Mechanical properties min unless stated
Steel name Steel number Max Thickness mm 1) Proof strength Rp0.2 N/mm2 Tensile strength Rm N/mm2 Elongation A 2) %
Standard Grades
X3CrNiMoN27-5-2 1.4460 103) 610 770/1030 12
10<16 560 770/1030 12
16<40 460 620/950 15
40<63 460 620/950 15
63<160 460 620/880 20
X2CrNiMoN22-5-3 1.4462 103) 650 850/1150 12
10<16 650 850/1100 12
16<40 450 650/1000 15
40<63 450 650/1000 15
63<160 450 650/880 25
Special Grades
X2CrNiN22-2 1.4062 16 600 650/1100 15
16<40 500 700/1100 15
40 500 700/1100 20
X2CrMnNiN21-5-1 1.4162 103) 500 700/1050 15
10<16 500 700/1050 20
16<40 500 700/1050 20
40<160 450 650/850 30
X2CrMnNiMoN21-5-3 1.4482 160 500 800 20
X2CrNiMnMoCuN21-5-3 1.4662 103) 700 900/1150 15
10<30 700 900/1100 20
30<160 450 650/900 25
X2CrNiMoCuN25-6-3 1.4507 103) 4) 4) 4)
10<16 4) 4) 4)
16<40 500 700/1050 25
40<63 500 700/900 25
63<160 500 700/900 25


Note

  1. Width across flats for hexagons.
  2. Elongation is valid only for dimensions of 5mm and above. For smaller diameters, the minimum elongation has to agreed upon at the time of the enquiry and order
  3. In the range 1mm<t<5mm valid only for rounds. The mechanical properties of non round bars with thicknesses <5mm have to be agreed at the time of the enquiry and order
  4. To be agreed upon at the time of the enquiry and order

The austenitic-ferritic steels are in the annealed condition. The anealing treatment may be omitted, if the conditions for hot working and subsequent cooling are such that the requirements for the mechanical properties of the product and the resistance to intergranular corrosion as defined in EN ISO 3651-2 are obtained.

 

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