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S82012 Stainless Steel vs. AISI 304H Stainless Steel

Both S82012 stainless steel and AISI 304H stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 92% 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 304H stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
40
Fatigue Strength, MPa 480
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Shear Strength, MPa 550
400
Tensile Strength: Ultimate (UTS), MPa 800
580
Tensile Strength: Yield (Proof), MPa 560
230

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 950
960
Melting Completion (Liquidus), °C 1430
1430
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 11
15
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.4
3.0
Embodied Energy, MJ/kg 35
43
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 24
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
190
Resilience: Unit (Modulus of Resilience), kJ/m3 790
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29
21
Strength to Weight: Bending, points 25
20
Thermal Diffusivity, mm2/s 3.9
4.5
Thermal Shock Resistance, points 23
13

Alloy Composition

Carbon (C), % 0 to 0.050
0.040 to 0.1
Chromium (Cr), % 19 to 20.5
18 to 20
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 71.3 to 77.9
66.6 to 74
Manganese (Mn), % 2.0 to 4.0
0 to 2.0
Molybdenum (Mo), % 0.1 to 0.6
0
Nickel (Ni), % 0.8 to 1.5
8.0 to 10.5
Nitrogen (N), % 0.16 to 0.26
0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.8
0 to 0.75
Sulfur (S), % 0 to 0.0050
0 to 0.030