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EN 1.4580 Stainless Steel vs. EN 1.4008 Stainless Steel

Both EN 1.4580 stainless steel and EN 1.4008 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4580 stainless steel and the bottom bar is EN 1.4008 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
17
Fatigue Strength, MPa 210
300
Impact Strength: V-Notched Charpy, J 90
31
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 620
670
Tensile Strength: Yield (Proof), MPa 250
500

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 480
390
Maximum Temperature: Mechanical, °C 950
760
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 22
8.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.3
2.1
Embodied Energy, MJ/kg 60
30
Embodied Water, L/kg 150
100

Common Calculations

PREN (Pitting Resistance) 25
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
100
Resilience: Unit (Modulus of Resilience), kJ/m3 150
630
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
24
Strength to Weight: Bending, points 21
22
Thermal Diffusivity, mm2/s 4.0
6.7
Thermal Shock Resistance, points 14
23

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.1
Chromium (Cr), % 16.5 to 18.5
12 to 13.5
Iron (Fe), % 61.4 to 71
81.8 to 86.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.0 to 2.5
0.2 to 0.5
Nickel (Ni), % 10.5 to 13.5
1.0 to 2.0
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.025