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EN 1.7390 Steel vs. EN 1.4823 Stainless Steel

Both EN 1.7390 steel and EN 1.4823 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 1.4823 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
3.4
Fatigue Strength, MPa 310
130
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
79
Tensile Strength: Ultimate (UTS), MPa 710
620
Tensile Strength: Yield (Proof), MPa 480
290

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Maximum Temperature: Mechanical, °C 510
1100
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 40
17
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
16
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 1.7
3.0
Embodied Energy, MJ/kg 23
43
Embodied Water, L/kg 69
170

Common Calculations

PREN (Pitting Resistance) 6.8
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
17
Resilience: Unit (Modulus of Resilience), kJ/m3 600
200
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 25
23
Strength to Weight: Bending, points 23
21
Thermal Diffusivity, mm2/s 11
4.5
Thermal Shock Resistance, points 20
17

Alloy Composition

Carbon (C), % 0 to 0.18
0.3 to 0.5
Chromium (Cr), % 4.0 to 6.0
25 to 28
Iron (Fe), % 91.9 to 95.3
60.9 to 70.7
Manganese (Mn), % 0.3 to 0.8
0 to 1.5
Molybdenum (Mo), % 0.45 to 0.65
0 to 0.5
Nickel (Ni), % 0
3.0 to 6.0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
1.0 to 2.5
Sulfur (S), % 0 to 0.015
0 to 0.030