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S82012 Stainless Steel vs. SAE-AISI 4028 Steel

Both S82012 stainless steel and SAE-AISI 4028 steel are iron alloys. They have 76% 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 S82012 stainless steel and the bottom bar is SAE-AISI 4028 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
14 to 23
Fatigue Strength, MPa 480
180 to 330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 550
310 to 380
Tensile Strength: Ultimate (UTS), MPa 800
490 to 630
Tensile Strength: Yield (Proof), MPa 560
260 to 520

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 950
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
49
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.1
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.4
1.5
Embodied Energy, MJ/kg 35
19
Embodied Water, L/kg 140
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
81 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 790
180 to 720
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29
17 to 22
Strength to Weight: Bending, points 25
18 to 21
Thermal Diffusivity, mm2/s 3.9
13
Thermal Shock Resistance, points 23
16 to 20

Alloy Composition

Carbon (C), % 0 to 0.050
0.25 to 0.3
Chromium (Cr), % 19 to 20.5
0
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 71.3 to 77.9
98.1 to 98.7
Manganese (Mn), % 2.0 to 4.0
0.7 to 0.9
Molybdenum (Mo), % 0.1 to 0.6
0.2 to 0.3
Nickel (Ni), % 0.8 to 1.5
0
Nitrogen (N), % 0.16 to 0.26
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 0.8
0.15 to 0.35
Sulfur (S), % 0 to 0.0050
0.035 to 0.050