EN 1.4318 (X2CrNiN18-7) Stainless Steel
Austenitic & General Stainless Steels
Property Overview
Density7.8g/cm³
Elastic Modulus200GPa
Tensile Strength740MPa
Yield Strength380MPa
Brinell Hardness230HB
Maximum Service Temperature910°C
Mechanical
A - Min. elongation at fracture (%) (+A)
35-45
+A
Elastic (Young's, Tensile) Modulus
200 GPa
Impact Strength: V-Notched Charpy
85 J
KV - Impact energy (J) longitud., (+A)
+20° 90
+A
KV - Impact energy (J) transverse, (+A)
+20° 60
+A
R p0.2 0.2% proof strength (MPa) (+A)
330-350
+A
Rm - Tensile strength (MPa) (+A)
630-850
+A
Tensile Strength: Ultimate (UTS)
740 MPa
Tensile Strength: Yield (Proof)
380 MPa
Thermal
Latent Heat of Fusion
290 J/g
Maximum Temperature: Corrosion
410 °C
Maximum Temperature: Mechanical
910 °C
Melting Completion (Liquidus)
1430 °C
Melting Onset (Solidus)
1380 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
15 W/m-K
Thermal Diffusivity
4.0 mm 2 /s
Thermal Expansion
16 µm/m-K
Thermal Shock Resistance
17 points
Electrical
Electrical Conductivity: Equal Volume
2.4 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.7 % IACS
Calculated
PREN (Pitting Resistance)
20
Resilience: Ultimate (Unit Rupture Work)
280 MJ/m 3
Resilience: Unit (Modulus of Resilience)
360 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
27 points
Strength to Weight: Bending
23 points
Environmental
Base Metal Price
13 % relative
Embodied Carbon
2.8 kg CO 2 /kg material
Embodied Energy
39 MJ/kg 17 x 10 3 BTU/lb
Embodied Water
130 L/kg 16 gal/lb
Registered Designations & Aliases
1.43181.4318EN 1.4318 (X2CrNiN18-7) Stainless SteelX2CrNiN18-7X2CrNiN18-7
Standards
EN 10028-7 EN 10028-7: 2007 Flat products made of steels for pressure purposes. Stainless steels
EN 10088-1 EN 10088-1: 2005 Stainless steels. List of stainless steels
EN 10088-1 EN 10088-1: Stainless steels - Part 1: List of stainless steels
EN 10088-2 EN 10088-2: 2005 Stainless steels. Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
EN 10088-2 EN 10088-2: Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
EN 10088-2 EN 10088-2: Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes EN 10088-1: Stainless steels - Part 1: List of stainless steels
EN 10088-4 EN 10088-4: 2009 Stainless steels. Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for construction purposes
EN 10296-2 EN 10296-2: 2005 Welded circular steel tubes for mechanical and general engineering purposes. Stainless steel. Technical delivery conditions