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S32003 Stainless Steel vs. S82012 Stainless Steel

Both S32003 stainless steel and S82012 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 S32003 stainless steel and the bottom bar is S82012 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 430
420
Maximum Temperature: Mechanical, °C 1010
950
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1380
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 14
11
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.0
2.4
Embodied Energy, MJ/kg 42
35
Embodied Water, L/kg 150
140

Common Calculations

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

Alloy Composition

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