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EN 1.4581 Stainless Steel vs. SAE-AISI 9310 Steel

Both EN 1.4581 stainless steel and SAE-AISI 9310 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 1.4581 stainless steel and the bottom bar is SAE-AISI 9310 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
540 to 610
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
17 to 19
Fatigue Strength, MPa 150
300 to 390
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 510
820 to 910
Tensile Strength: Yield (Proof), MPa 210
450 to 570

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 990
440
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
48
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 21
4.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.2
1.8
Embodied Energy, MJ/kg 59
24
Embodied Water, L/kg 160
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 110
540 to 860
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
29 to 32
Strength to Weight: Bending, points 18
25 to 27
Thermal Diffusivity, mm2/s 3.9
13
Thermal Shock Resistance, points 12
24 to 27

Alloy Composition

Carbon (C), % 0 to 0.070
0.080 to 0.13
Chromium (Cr), % 18 to 20
1.0 to 1.4
Iron (Fe), % 61.4 to 71
93.8 to 95.2
Manganese (Mn), % 0 to 1.5
0.45 to 0.65
Molybdenum (Mo), % 2.0 to 2.5
0.080 to 0.15
Nickel (Ni), % 9.0 to 12
3.0 to 3.5
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.5
0.2 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.012