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S20910 Stainless Steel vs. SAE-AISI 1040 Steel

Both S20910 stainless steel and SAE-AISI 1040 steel are iron alloys. They have 58% of their average alloy composition in common. There are 30 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 S20910 stainless steel and the bottom bar is SAE-AISI 1040 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 290
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 39
13 to 20
Fatigue Strength, MPa 310 to 460
220 to 340
Poisson's Ratio 0.28
0.29
Reduction in Area, % 56 to 62
40 to 45
Shear Modulus, GPa 79
73
Shear Strength, MPa 500 to 570
350 to 390
Tensile Strength: Ultimate (UTS), MPa 780 to 940
570 to 640
Tensile Strength: Yield (Proof), MPa 430 to 810
320 to 530

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1080
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 13
51
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 22
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.8
1.4
Embodied Energy, MJ/kg 68
18
Embodied Water, L/kg 180
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
79 to 96
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
270 to 760
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 33
20 to 23
Strength to Weight: Bending, points 24 to 27
19 to 21
Thermal Diffusivity, mm2/s 3.6
14
Thermal Shock Resistance, points 17 to 21
18 to 20

Alloy Composition

Carbon (C), % 0 to 0.060
0.37 to 0.44
Chromium (Cr), % 20.5 to 23.5
0
Iron (Fe), % 52.1 to 62.1
98.6 to 99.03
Manganese (Mn), % 4.0 to 6.0
0.6 to 0.9
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
0
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0 to 0.050
Vanadium (V), % 0.1 to 0.3
0

Comparable Variants