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AISI 316 Stainless Steel vs. SAE-AISI 1040 Steel

Both AISI 316 stainless steel and SAE-AISI 1040 steel are iron alloys. They have 68% of their average alloy composition in common. There are 32 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 316 stainless steel and the bottom bar is SAE-AISI 1040 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 360
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 8.0 to 55
13 to 20
Fatigue Strength, MPa 210 to 430
220 to 340
Poisson's Ratio 0.28
0.29
Reduction in Area, % 80
40 to 45
Shear Modulus, GPa 78
73
Shear Strength, MPa 350 to 690
350 to 390
Tensile Strength: Ultimate (UTS), MPa 520 to 1180
570 to 640
Tensile Strength: Yield (Proof), MPa 230 to 850
320 to 530

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 590
400
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 19
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.9
1.4
Embodied Energy, MJ/kg 53
18
Embodied Water, L/kg 150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 85 to 260
79 to 96
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 1820
270 to 760
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18 to 41
20 to 23
Strength to Weight: Bending, points 18 to 31
19 to 21
Thermal Diffusivity, mm2/s 4.1
14
Thermal Shock Resistance, points 11 to 26
18 to 20

Alloy Composition

Carbon (C), % 0 to 0.080
0.37 to 0.44
Chromium (Cr), % 16 to 18
0
Iron (Fe), % 62 to 72
98.6 to 99.03
Manganese (Mn), % 0 to 2.0
0.6 to 0.9
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 10 to 14
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0 to 0.050

Comparable Variants