Ambient Temperature Mechanical Properties of Austenitic-Ferritic (Duplex) Stainless Steel Flat Products To BS EN 10088-2
Ambient temperature mechanical properties of austenitic-ferritic (duplex) stainless-steel flat product to BS EN 10088-2
The BS EN 10088-2 is the material standard for stainless steel sheet, plate and strip for general purposes.
The current edition was published in October 2014. Mechanical properties are specified, including proof and tensile strength,
elongation and impact strength. The tensile properties only are tabulated in this article. LAST UPDATED 25th NOVEMBER 2014
AMBIENT TEMPERATURE MECHANICAL PROPERTIES OF AUSTENITIC-FERRITIC (DUPLEX) STAINLESS STEEL FLAT PRODUCTS TO BS EN 10088-2
Introduction
BS EN 10088-2 is the material standard for stainless steel sheet, plate and strip for general purposes.
This article gives the 0.2% and 1.0% proof strength, tensile strength and elongation of the 12 austenitic-ferritic, (duplex),
grades specified. The standard also specifies includes impact properties, and resistance to intergranular corrosion acceptance criteria.
For reasons of space, these are omitted from the tables shown here.
As an alternative to scanning down the list try the ‘find’ facility on your keyboard, using the ‘Ctrl’ and ‘F’ keys together.
Type in the term you are looking for in the dialog box that then appears.
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 The second version, BS EN 10088-2:2005, has been superseded by BS EN 10088-2:2014.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 only have the 2014 tensile property ranges of the austenitic-ferritic, (duplex), steels.
Four new duplex grades, 1.4162, 1.4662, 1.4482, 1.4062 have been added.
BS EN 10088-2 mechanical properties – austenitic-ferritic (duplex) stainless steels
Designation Mechanical properties min unless stated
Steel name Steel number Product Proof strength Rp0.22),3) N/mm2 Tensile strength Rm N/mm2 Elongation4),5) %
Form1) Max thickness mm
Austenitic-ferritic stainless steels in the solution annealed condition-standard grades
X2CrNiN23-4 1.4362 C 8 450 650/850 20
H 13.5 400 650/850 20
P 75 400 630/800 25
X2CrNiMoN22-5-3 1.4462 C 8 500 700/950 20
H 13.5 460 700/950 25
P 75 460 640/840 25
Austenitic-ferritic stainless steels in the solution annealed condition-special grades
X2CrNiN22-2 1.4062 C 6.4 530 700/900 20
H 10 480 680/900 30
P 75 450 650/850 30
X2CrNiCuN23-4 1.4655 C 8 420 600/850 20
H 13.5 400 600/850 20
P 75 400 630/800 25
X2CrMnNiN21-5-1 1.4162 C 6.4 530 700/900 20
H 10 480 680/900 30
P 75 430 650/850 30
X2CrMnNiMoN21-5-3 1.4482 C 6.4 500 700/900 20
H 10 480 660/900 30
P 75 450 650/850 30
X2CrNiMnMoCuN24-4-3-2 1.4662 C 6.4 550 750/900 25
H 13 550 750/900 25
P 75 480 680/900 25
X2CrNiMoN29-7-2 1.4477 C 8 650 800/1050 20
H 13.5 550 750/1000 20
P 75 550 750/1000 20
X2CrNiMoCuN25-6-3 1.4507 C 8 550 750/1000 20
H 13.5 530 750/1000 20
P 75 530 730/930 25
X2CrNiMoN25-7-4 1.4410 C 8 550 750/1000 20
H 13.5 530 750/1000 20
P 75 530 730/930 20
X2CrNiMoCuWN25-7-4 1.4501 P 75 530 730/930 25
X2CrNiMoSi18-5-3 1.4424 C 8 450 700/900 25
H 13.5 450 700/900 25
P 75 400 680/900 25
Note
C= Cold rolled strip; H= hot rolled strip; P= hot rolled plate.
If, in the case of strip in rolling widths < 300mm, longitudinal test pieces are taken, the minimum proof strength values are reduced by 15N/mm2
For continuously hot rolled products, 20N/mm2 higher minimum values of Rp0.2 may be agreed at the time of enquiry and order.
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.
The values apply for test pieces with a gauge length of 5.65 So0.5
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