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S21603 Stainless Steel vs. S82012 Stainless Steel

Both S21603 stainless steel and S82012 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 88% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S21603 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, % 45
40
Fatigue Strength, MPa 360
480
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
78
Shear Strength, MPa 490
550
Tensile Strength: Ultimate (UTS), MPa 690
800
Tensile Strength: Yield (Proof), MPa 390
560

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 990
950
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 17
11
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.6
2.4
Embodied Energy, MJ/kg 50
35
Embodied Water, L/kg 160
140

Common Calculations

PREN (Pitting Resistance) 34
24
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
290
Resilience: Unit (Modulus of Resilience), kJ/m3 380
790
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
29
Strength to Weight: Bending, points 22
25
Thermal Shock Resistance, points 15
23

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 17.5 to 22
19 to 20.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 57.6 to 67.8
71.3 to 77.9
Manganese (Mn), % 7.5 to 9.0
2.0 to 4.0
Molybdenum (Mo), % 2.0 to 3.0
0.1 to 0.6
Nickel (Ni), % 5.0 to 7.0
0.8 to 1.5
Nitrogen (N), % 0.25 to 0.5
0.16 to 0.26
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.0050