Cold Rolled 1.4477 Stainless Steel
Cold rolled EN 1.4477 is EN 1.4477 stainless steel in the cold worked (strain hardened) condition. The graph bars on the material properties cards below compare cold rolled EN 1.4477 to: wrought duplex stainless steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Brinell Hardness
270
Elastic (Young's, Tensile) Modulus
210 GPa 30 x 106 psi
Elongation at Break
22 %
Fatigue Strength
490 MPa 71 x 103 psi
Impact Strength: V-Notched Charpy
110 J 83 ft-lb
Poisson's Ratio
0.27
Shear Modulus
81 GPa 12 x 106 psi
Shear Strength
580 MPa 85 x 103 psi
Tensile Strength: Ultimate (UTS)
930 MPa 130 x 103 psi
Tensile Strength: Yield (Proof)
730 MPa 110 x 103 psi
Thermal Properties
Latent Heat of Fusion
300 J/g
Maximum Temperature: Corrosion
460 °C 870 °F
Maximum Temperature: Mechanical
1100 °C 2010 °F
Melting Completion (Liquidus)
1430 °C 2600 °F
Melting Onset (Solidus)
1380 °C 2520 °F
Specific Heat Capacity
480 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
13 W/m-K 7.5 BTU/h-ft-°F
Thermal Expansion
13 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
2.2 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.5 % IACS
Otherwise Unclassified Properties
Base Metal Price
20 % relative
Density
7.7 g/cm3 480 lb/ft3
Embodied Carbon
3.7 kg CO2/kg material
Embodied Energy
52 MJ/kg 23 x 103 BTU/lb
Embodied Water
190 L/kg 23 gal/lb
Common Calculations
PREN (Pitting Resistance)
41
Resilience: Ultimate (Unit Rupture Work)
190 MJ/m3
Resilience: Unit (Modulus of Resilience)
1290 kJ/m3
Stiffness to Weight: Axial
15 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
33 points
Strength to Weight: Bending
27 points
Thermal Diffusivity
3.5 mm2/s
Thermal Shock Resistance
25 points
Alloy Composition
| Fe | 56.6 to 63.6 | |
| Cr | 28 to 30 | |
| Ni | 5.8 to 7.5 | |
| Mo | 1.5 to 2.6 | |
| Mn | 0.8 to 1.5 | |
| Cu | 0 to 0.8 | |
| N | 0.3 to 0.4 | |
| Si | 0 to 0.5 | |
| C | 0 to 0.030 | |
| P | 0 to 0.030 | |
| S | 0 to 0.015 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
Duplex Stainless Steels, Iris Alvarez-Armas and Suzanne Degallaix-Moreuil (editors), 2009
Duplex Stainless Steels: Microstructure, Properties and Applications, Robert N. Gunn (editor), 1997
EN 10088-2: Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
EN 10088-3: Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products 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
Advances in Stainless Steels, Baldev Raj et al. (editors), 2010