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S82012 Stainless Steel vs. S32003 Stainless Steel

Both S82012 stainless steel and S32003 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 95% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is S82012 stainless steel and the bottom bar is S32003 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
28
Fatigue Strength, MPa 480
370
Poisson's Ratio 0.28
0.27
Rockwell C Hardness 27
27
Shear Modulus, GPa 78
79
Shear Strength, MPa 550
480
Tensile Strength: Ultimate (UTS), MPa 800
730
Tensile Strength: Yield (Proof), MPa 560
510

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 420
430
Maximum Temperature: Mechanical, °C 950
1010
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 13
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 11
14
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.4
3.0
Embodied Energy, MJ/kg 35
42
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 24
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
180
Resilience: Unit (Modulus of Resilience), kJ/m3 790
660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29
26
Strength to Weight: Bending, points 25
23
Thermal Diffusivity, mm2/s 3.9
4.0
Thermal Shock Resistance, points 23
21

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 19 to 20.5
19.5 to 22.5
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 71.3 to 77.9
68.2 to 75.9
Manganese (Mn), % 2.0 to 4.0
0 to 2.0
Molybdenum (Mo), % 0.1 to 0.6
1.5 to 2.0
Nickel (Ni), % 0.8 to 1.5
3.0 to 4.0
Nitrogen (N), % 0.16 to 0.26
0.14 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.0050
0 to 0.020