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S82012 Stainless Steel vs. AISI 434 Stainless Steel

Both S82012 stainless steel and AISI 434 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 93% of their average alloy composition in common. There are 32 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 AISI 434 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
24
Fatigue Strength, MPa 480
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
78
Shear Strength, MPa 550
330
Tensile Strength: Ultimate (UTS), MPa 800
520
Tensile Strength: Yield (Proof), MPa 560
320

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 950
880
Melting Completion (Liquidus), °C 1430
1510
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.4
2.4
Embodied Energy, MJ/kg 35
33
Embodied Water, L/kg 140
120

Common Calculations

PREN (Pitting Resistance) 24
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
110
Resilience: Unit (Modulus of Resilience), kJ/m3 790
260
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29
19
Strength to Weight: Bending, points 25
18
Thermal Diffusivity, mm2/s 3.9
6.7
Thermal Shock Resistance, points 23
19

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.12
Chromium (Cr), % 19 to 20.5
16 to 18
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 71.3 to 77.9
78.6 to 83.3
Manganese (Mn), % 2.0 to 4.0
0 to 1.0
Molybdenum (Mo), % 0.1 to 0.6
0.75 to 1.3
Nickel (Ni), % 0.8 to 1.5
0
Nitrogen (N), % 0.16 to 0.26
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.0050
0 to 0.030