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EN 1.6750 Steel vs. EN 1.4415 Stainless Steel

Both EN 1.6750 steel and EN 1.4415 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.6750 steel and the bottom bar is EN 1.4415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18
17 to 20
Fatigue Strength, MPa 310
470 to 510
Impact Strength: V-Notched Charpy, J 46
91 to 110
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 650
830 to 930
Tensile Strength: Yield (Proof), MPa 460
730 to 840

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 420
790
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
19
Thermal Expansion, µm/m-K 13
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 3.3
13
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.7
3.6
Embodied Energy, MJ/kg 22
51
Embodied Water, L/kg 52
120

Common Calculations

PREN (Pitting Resistance) 2.4
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
150 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 570
1350 to 1790
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23
29 to 33
Strength to Weight: Bending, points 21
25 to 27
Thermal Diffusivity, mm2/s 10
5.1
Thermal Shock Resistance, points 19
30 to 34

Alloy Composition

Carbon (C), % 0.17 to 0.23
0 to 0.030
Chromium (Cr), % 0.3 to 0.5
11.5 to 13.5
Iron (Fe), % 95.3 to 97.5
75.9 to 82.4
Manganese (Mn), % 0.8 to 1.2
0 to 0.5
Molybdenum (Mo), % 0.4 to 0.8
1.5 to 2.5
Nickel (Ni), % 0.8 to 1.2
4.5 to 6.5
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0 to 0.010
Vanadium (V), % 0
0.1 to 0.5