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EN 1.4589 Stainless Steel vs. EN 1.7390 Steel

Both EN 1.4589 stainless steel and EN 1.7390 steel are iron alloys. They have 88% 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 1.4589 stainless steel and the bottom bar is EN 1.7390 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
16
Fatigue Strength, MPa 260
310
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Shear Strength, MPa 400
440
Tensile Strength: Ultimate (UTS), MPa 650
710
Tensile Strength: Yield (Proof), MPa 440
480

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 810
510
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
40
Thermal Expansion, µm/m-K 11
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
4.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.4
1.7
Embodied Energy, MJ/kg 34
23
Embodied Water, L/kg 110
69

Common Calculations

PREN (Pitting Resistance) 17
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 96
100
Resilience: Unit (Modulus of Resilience), kJ/m3 490
600
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
25
Strength to Weight: Bending, points 22
23
Thermal Diffusivity, mm2/s 6.7
11
Thermal Shock Resistance, points 23
20

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.18
Chromium (Cr), % 13.5 to 15.5
4.0 to 6.0
Iron (Fe), % 78.2 to 85
91.9 to 95.3
Manganese (Mn), % 0 to 1.0
0.3 to 0.8
Molybdenum (Mo), % 0.2 to 1.2
0.45 to 0.65
Nickel (Ni), % 1.0 to 2.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0.3 to 0.5
0