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ASTM Grade HE Steel vs. S32808 Stainless Steel

Both ASTM grade HE steel and S32808 stainless steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HE steel and the bottom bar is S32808 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
270
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 10
17
Fatigue Strength, MPa 160
350
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
81
Tensile Strength: Ultimate (UTS), MPa 670
780
Tensile Strength: Yield (Proof), MPa 310
570

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 450
460
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1400
1470
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 14
14
Thermal Expansion, µm/m-K 17
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 19
24
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.5
4.0
Embodied Energy, MJ/kg 50
57
Embodied Water, L/kg 190
180

Common Calculations

PREN (Pitting Resistance) 29
40
Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
120
Resilience: Unit (Modulus of Resilience), kJ/m3 240
790
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
27
Strength to Weight: Bending, points 22
24
Thermal Diffusivity, mm2/s 3.6
3.8
Thermal Shock Resistance, points 14
21

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.030
Chromium (Cr), % 26 to 30
27 to 27.9
Iron (Fe), % 53.9 to 65.8
58.1 to 62.8
Manganese (Mn), % 0 to 2.0
0 to 1.1
Molybdenum (Mo), % 0 to 0.5
0.8 to 1.2
Nickel (Ni), % 8.0 to 11
7.0 to 8.2
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.010
Tungsten (W), % 0
2.1 to 2.5