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EN 1.4901 Stainless Steel vs. SAE-AISI 9310 Steel

Both EN 1.4901 stainless steel and SAE-AISI 9310 steel are iron alloys. They have 90% 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 1.4901 stainless steel and the bottom bar is SAE-AISI 9310 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
17 to 19
Fatigue Strength, MPa 310
300 to 390
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 460
510 to 570
Tensile Strength: Ultimate (UTS), MPa 740
820 to 910
Tensile Strength: Yield (Proof), MPa 490
450 to 570

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 650
440
Melting Completion (Liquidus), °C 1490
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
48
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 11
4.4
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.8
1.8
Embodied Energy, MJ/kg 40
24
Embodied Water, L/kg 89
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 620
540 to 860
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
29 to 32
Strength to Weight: Bending, points 23
25 to 27
Thermal Diffusivity, mm2/s 6.9
13
Thermal Shock Resistance, points 23
24 to 27

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.070 to 0.13
0.080 to 0.13
Chromium (Cr), % 8.5 to 9.5
1.0 to 1.4
Iron (Fe), % 85.8 to 89.1
93.8 to 95.2
Manganese (Mn), % 0.3 to 0.6
0.45 to 0.65
Molybdenum (Mo), % 0.3 to 0.6
0.080 to 0.15
Nickel (Ni), % 0 to 0.4
3.0 to 3.5
Niobium (Nb), % 0.040 to 0.090
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.020
0 to 0.015
Silicon (Si), % 0 to 0.5
0.2 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.012
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.0
0
Vanadium (V), % 0.15 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0