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EN 1.4458 Stainless Steel vs. EN 1.4415 Stainless Steel

Both EN 1.4458 stainless steel and EN 1.4415 stainless steel are iron alloys. They have 67% 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 1.4458 stainless steel and the bottom bar is EN 1.4415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
17 to 20
Fatigue Strength, MPa 150
470 to 510
Impact Strength: V-Notched Charpy, J 67
91 to 110
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 510
830 to 930
Tensile Strength: Yield (Proof), MPa 190
730 to 840

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 430
390
Maximum Temperature: Mechanical, °C 1100
790
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
19
Thermal Expansion, µm/m-K 15
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 30
13
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 5.4
3.6
Embodied Energy, MJ/kg 75
51
Embodied Water, L/kg 200
120

Common Calculations

PREN (Pitting Resistance) 30
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
150 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 89
1350 to 1790
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
29 to 33
Strength to Weight: Bending, points 18
25 to 27
Thermal Diffusivity, mm2/s 4.2
5.1
Thermal Shock Resistance, points 12
30 to 34

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 19 to 22
11.5 to 13.5
Copper (Cu), % 0 to 2.0
0
Iron (Fe), % 40.2 to 53
75.9 to 82.4
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 2.0 to 2.5
1.5 to 2.5
Nickel (Ni), % 26 to 30
4.5 to 6.5
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.015
Titanium (Ti), % 0
0 to 0.010
Vanadium (V), % 0
0.1 to 0.5