EN 1.4621 (X2CrNbCu21) Stainless Steel
Ferritic Stainless Steels
hot worked
Property Overview
Density7.7g/cm³
Elastic Modulus200GPa
Tensile Strength500MPa
Yield Strength270MPa
Brinell HardnessUnknown
Maximum Service Temperature970°C
Chemical Composition
C
0 to 0.030%
CR
20 to 21.5%
MN
0 to 1.0%
SI
0 to 1.0%
N
0 to 0.030%
P
0 to 0.040%
S
0 to 0.015%
CU
0.1 to 1.0%
NB
0.2 to 1.0%
FE
74.4 to 79.7%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
25 %
Fatigue Strength
190 MPa
Poisson's Ratio
0.27
Shear Modulus
78 GPa
Shear Strength
320 MPa
Tensile Strength: Ultimate (UTS)
500 MPa
Tensile Strength: Yield (Proof)
270 MPa
Physical
Density
7.7 g/cm 3
Thermal
Latent Heat of Fusion
290 J/g
Maximum Temperature: Corrosion
510 °C
Maximum Temperature: Mechanical
970 °C
Melting Completion (Liquidus)
1440 °C
Melting Onset (Solidus)
1390 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
21 W/m-K
Thermal Diffusivity
5.7 mm 2 /s
Thermal Expansion
11 µm/m-K
Thermal Shock Resistance
17 points
Electrical
Electrical Conductivity: Equal Volume
2.6 % IACS
Electrical Conductivity: Equal Weight (Specific)
3.1 % IACS
Calculated
PREN (Pitting Resistance)
21
Resilience: Ultimate (Unit Rupture Work)
110 MJ/m 3
Resilience: Unit (Modulus of Resilience)
190 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
18 points
Strength to Weight: Bending
18 points
Environmental
Base Metal Price
14 % relative
Embodied Carbon
2.8 kg CO 2 /kg material
Embodied Energy
41 MJ/kg
Embodied Energy
41 MJ/kg 17 x 10 3 BTU/lb
Embodied Water
140 L/kg
Embodied Water
140 L/kg 16 gal/lb
Registered Designations & Aliases
1.4621EN 1.4621 (X2CrNbCu21) Stainless SteelX2CrNbCu21
Standards
EN 10088-1 EN 10088-1: Stainless steels - Part 1: List of stainless steels
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 Corrosion of Stainless Steels, A. John Sedriks, 1996