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EN 1.7390 Steel vs. S33425 Stainless Steel

Both EN 1.7390 steel and S33425 stainless steel are iron alloys. They have 58% of their average alloy composition in common. There are 32 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 1.7390 steel and the bottom bar is S33425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
45
Fatigue Strength, MPa 310
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
79
Shear Strength, MPa 440
400
Tensile Strength: Ultimate (UTS), MPa 710
580
Tensile Strength: Yield (Proof), MPa 480
230

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 510
1100
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
14
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
27
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.7
5.1
Embodied Energy, MJ/kg 23
71
Embodied Water, L/kg 69
190

Common Calculations

PREN (Pitting Resistance) 6.8
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
210
Resilience: Unit (Modulus of Resilience), kJ/m3 600
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
20
Strength to Weight: Bending, points 23
19
Thermal Diffusivity, mm2/s 11
3.7
Thermal Shock Resistance, points 20
13

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0 to 0.18
0 to 0.080
Chromium (Cr), % 4.0 to 6.0
21 to 23
Iron (Fe), % 91.9 to 95.3
47.2 to 56.7
Manganese (Mn), % 0.3 to 0.8
0 to 1.5
Molybdenum (Mo), % 0.45 to 0.65
2.0 to 3.0
Nickel (Ni), % 0
20 to 23
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0
0.15 to 0.6