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X20CrNi18-9 Steel Forged Flanges - EN 10222-5 Forged Steel WN Flanges - 1.4307 Stainless Steel SS Flanges
Material Specifications
Grade:
X2CrNi18-9
Number:
1.4307
Classification:
Austenitic stainless steel
Density:
7.9 g/cm³
Applicable Standards
EN 10088-2:2005 - Stainless steels for sheet/plate and strip
EN 10088-3:2005 - Stainless steels for semi-finished products, bars, rods, wire, sections
EN 10028-7:2007 - Flat products for pressure purposes
EN 10222-5:2000 - Steel forgings for pressure purposes
EN 10216-5:2014 - Seamless steel tubes for pressure purposes
EN 10217-7:2005 - Welded steel tubes for pressure purposes
EN 10296-2:2005 - Welded circular steel tubes for mechanical engineering
EN 10253-3:2008 - Butt-welding pipe fittings without specific inspection
EN 10253-4:2008 - Butt-welding pipe fittings with specific inspection
EN 10272:2007 - Stainless steel bars for pressure purposes
EN 10269:1999 - Steels for fasteners with temperature properties
EN 10263-5:2001 - Steel for cold heading and cold extrusion
EN 10250-4:2000 - Open steel die forgings for engineering
EN 10297-2:2005 - Seamless circular tubes for mechanical engineering
EN 10088-1:2005 - List of stainless steels
EN 10088-4:2009 - Stainless steels for construction purposes
EN 10088-5:2009 - Stainless steels for construction purposes
Chemical Composition
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
N
max 0.03
max 1
max 2
8 - 10.5
max 0.045
max 0.015
17.5 - 19.5
max 0.11
Mechanical Properties
Tensile Strength (Rm):
+A
450-700 MPa
+AT
470-680 MPa
+AT+C
740-800 MPa
0.2% Proof Strength (Rp0.2):
+AT
180 MPa
+A
175-220 MPa
Impact Energy (KV):
Transverse, +A
+20°C: 60 J | -196°C: 60 J
Longitudinal, +A
+20°C: 100 J
Elongation at Fracture (A):
+A
35-45%
Transverse, +AT
35%
Longitudinal, +AT
40%
Nominal Diameter
2 - 50 mm
Reduction in Cross Section (Z)
63-68%
Brinell Hardness (+A)
215 HB
Brinell Hardness (+AT)
200 HB
Material Properties
Resistance to Intergranular Corrosion:
Delivery Condition
Yes
Sensitized Condition
Yes
Steel shall not be applied at a metal temperature lower than -196°C
