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EN 1.7390 Steel vs. EN 1.4923 Stainless Steel

Both EN 1.7390 steel and EN 1.4923 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 33 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 1.7390 steel and the bottom bar is EN 1.4923 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
12 to 21
Fatigue Strength, MPa 310
300 to 440
Impact Strength: V-Notched Charpy, J 46
22 to 30
Poisson's Ratio 0.29
0.28
Reduction in Area, % 50
40 to 46
Shear Modulus, GPa 74
76
Shear Strength, MPa 440
540 to 590
Tensile Strength: Ultimate (UTS), MPa 710
870 to 980
Tensile Strength: Yield (Proof), MPa 480
470 to 780

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Maximum Temperature: Mechanical, °C 510
740
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
24
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
8.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.9
Embodied Energy, MJ/kg 23
41
Embodied Water, L/kg 69
100

Common Calculations

PREN (Pitting Resistance) 6.8
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
110 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 600
570 to 1580
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
31 to 35
Strength to Weight: Bending, points 23
26 to 28
Thermal Diffusivity, mm2/s 11
6.5
Thermal Shock Resistance, points 20
30 to 34

Alloy Composition

Carbon (C), % 0 to 0.18
0.18 to 0.24
Chromium (Cr), % 4.0 to 6.0
11 to 12.5
Iron (Fe), % 91.9 to 95.3
83.5 to 87.1
Manganese (Mn), % 0.3 to 0.8
0.4 to 0.9
Molybdenum (Mo), % 0.45 to 0.65
0.8 to 1.2
Nickel (Ni), % 0
0.3 to 0.8
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.015
Vanadium (V), % 0
0.25 to 0.35