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N08700 Stainless Steel vs. SAE-AISI 1140 Steel

Both N08700 stainless steel and SAE-AISI 1140 steel are iron alloys. They have 48% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is N08700 stainless steel and the bottom bar is SAE-AISI 1140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
170 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 32
14 to 18
Fatigue Strength, MPa 210
230 to 370
Poisson's Ratio 0.28
0.29
Reduction in Area, % 45
39 to 46
Shear Modulus, GPa 79
72
Shear Strength, MPa 410
370 to 420
Tensile Strength: Ultimate (UTS), MPa 620
600 to 700
Tensile Strength: Yield (Proof), MPa 270
340 to 570

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 13
51
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 32
1.8
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.0
1.4
Embodied Energy, MJ/kg 82
18
Embodied Water, L/kg 200
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
89 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 180
310 to 870
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
21 to 25
Strength to Weight: Bending, points 20
20 to 22
Thermal Diffusivity, mm2/s 3.5
14
Thermal Shock Resistance, points 14
18 to 21

Alloy Composition

Carbon (C), % 0 to 0.040
0.37 to 0.44
Chromium (Cr), % 19 to 23
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 42 to 52.7
98.4 to 98.9
Manganese (Mn), % 0 to 2.0
0.7 to 1.0
Molybdenum (Mo), % 4.3 to 5.0
0
Nickel (Ni), % 24 to 26
0
Niobium (Nb), % 0 to 0.4
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0.080 to 0.13