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SAE-AISI 1084 Steel vs. S30530 Stainless Steel

Both SAE-AISI 1084 steel and S30530 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 31 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 SAE-AISI 1084 steel and the bottom bar is S30530 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 270
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
46
Fatigue Strength, MPa 320 to 370
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 470 to 550
410
Tensile Strength: Ultimate (UTS), MPa 780 to 930
590
Tensile Strength: Yield (Proof), MPa 510 to 600
230

Thermal Properties

Latent Heat of Fusion, J/g 240
310
Maximum Temperature: Mechanical, °C 400
970
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
18
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.4
Embodied Energy, MJ/kg 19
48
Embodied Water, L/kg 46
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 89
210
Resilience: Unit (Modulus of Resilience), kJ/m3 700 to 960
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 28 to 33
21
Strength to Weight: Bending, points 24 to 27
20
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 25 to 30
13

Alloy Composition

Carbon (C), % 0.8 to 0.93
0 to 0.080
Chromium (Cr), % 0
17 to 20.5
Copper (Cu), % 0
0.75 to 3.5
Iron (Fe), % 98.1 to 98.6
58.4 to 72.5
Manganese (Mn), % 0.6 to 0.9
0 to 2.0
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 0
8.5 to 11.5
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
0.5 to 2.5
Sulfur (S), % 0 to 0.050
0 to 0.030