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AISI 405 Stainless Steel vs. EN 1.7390 Steel

Both AISI 405 stainless steel and EN 1.7390 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 33 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 AISI 405 stainless steel and the bottom bar is EN 1.7390 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
16
Fatigue Strength, MPa 130
310
Poisson's Ratio 0.28
0.29
Reduction in Area, % 51
50
Shear Modulus, GPa 76
74
Shear Strength, MPa 300
440
Tensile Strength: Ultimate (UTS), MPa 470
710
Tensile Strength: Yield (Proof), MPa 200
480

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 820
510
Melting Completion (Liquidus), °C 1530
1460
Melting Onset (Solidus), °C 1480
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
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 7.0
4.3
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.7
Embodied Energy, MJ/kg 28
23
Embodied Water, L/kg 100
69

Common Calculations

PREN (Pitting Resistance) 13
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
100
Resilience: Unit (Modulus of Resilience), kJ/m3 100
600
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
25
Strength to Weight: Bending, points 17
23
Thermal Diffusivity, mm2/s 8.1
11
Thermal Shock Resistance, points 16
20

Alloy Composition

Aluminum (Al), % 0.1 to 0.3
0
Carbon (C), % 0 to 0.080
0 to 0.18
Chromium (Cr), % 11.5 to 14.5
4.0 to 6.0
Iron (Fe), % 82.5 to 88.4
91.9 to 95.3
Manganese (Mn), % 0 to 1.0
0.3 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.65
Nickel (Ni), % 0 to 0.6
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 0.030
0 to 0.015