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EN 1.7390 Steel vs. EN 1.4110 Stainless Steel

Both EN 1.7390 steel and EN 1.4110 stainless steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.7390 steel and the bottom bar is EN 1.4110 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
11 to 14
Fatigue Strength, MPa 310
250 to 730
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Shear Strength, MPa 440
470 to 1030
Tensile Strength: Ultimate (UTS), MPa 710
770 to 1720
Tensile Strength: Yield (Proof), MPa 480
430 to 1330

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Maximum Temperature: Mechanical, °C 510
790
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
30
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
8.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.7
2.3
Embodied Energy, MJ/kg 23
33
Embodied Water, L/kg 69
110

Common Calculations

PREN (Pitting Resistance) 6.8
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
90 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 600
480 to 4550
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
28 to 62
Strength to Weight: Bending, points 23
24 to 41
Thermal Diffusivity, mm2/s 11
8.1
Thermal Shock Resistance, points 20
27 to 60

Alloy Composition

Carbon (C), % 0 to 0.18
0.48 to 0.6
Chromium (Cr), % 4.0 to 6.0
13 to 15
Iron (Fe), % 91.9 to 95.3
81.4 to 86
Manganese (Mn), % 0.3 to 0.8
0 to 1.0
Molybdenum (Mo), % 0.45 to 0.65
0.5 to 0.8
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Vanadium (V), % 0
0 to 0.15