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S82031 Stainless Steel vs. ASTM Grade HI Steel

Both S82031 stainless steel and ASTM grade HI steel are iron alloys. They have 79% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S82031 stainless steel and the bottom bar is ASTM grade HI steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
11
Fatigue Strength, MPa 490
150
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
79
Tensile Strength: Ultimate (UTS), MPa 780
550
Tensile Strength: Yield (Proof), MPa 570
270

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 430
450
Maximum Temperature: Mechanical, °C 980
1100
Melting Completion (Liquidus), °C 1430
1400
Melting Onset (Solidus), °C 1390
1350
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
23
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
4.1
Embodied Energy, MJ/kg 39
59
Embodied Water, L/kg 150
200

Common Calculations

PREN (Pitting Resistance) 27
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
52
Resilience: Unit (Modulus of Resilience), kJ/m3 820
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
20
Strength to Weight: Bending, points 24
19
Thermal Diffusivity, mm2/s 3.9
3.9
Thermal Shock Resistance, points 22
12

Alloy Composition

Carbon (C), % 0 to 0.050
0.2 to 0.5
Chromium (Cr), % 19 to 22
26 to 30
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 68 to 78.3
46.9 to 59.8
Manganese (Mn), % 0 to 2.5
0 to 2.0
Molybdenum (Mo), % 0.6 to 1.4
0 to 0.5
Nickel (Ni), % 2.0 to 4.0
14 to 18
Nitrogen (N), % 0.14 to 0.24
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 2.0
Sulfur (S), % 0 to 0.0050
0 to 0.040