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ASTM Grade HI Steel vs. S32050 Stainless Steel

Both ASTM grade HI steel and S32050 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HI steel and the bottom bar is S32050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
220
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 11
46
Fatigue Strength, MPa 150
340
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
81
Tensile Strength: Ultimate (UTS), MPa 550
770
Tensile Strength: Yield (Proof), MPa 270
370

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 450
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 23
31
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 4.1
6.0
Embodied Energy, MJ/kg 59
81
Embodied Water, L/kg 200
210

Common Calculations

PREN (Pitting Resistance) 29
48
Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
290
Resilience: Unit (Modulus of Resilience), kJ/m3 180
330
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
27
Strength to Weight: Bending, points 19
23
Thermal Diffusivity, mm2/s 3.9
3.3
Thermal Shock Resistance, points 12
17

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.030
Chromium (Cr), % 26 to 30
22 to 24
Copper (Cu), % 0
0 to 0.4
Iron (Fe), % 46.9 to 59.8
43.1 to 51.8
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
6.0 to 6.6
Nickel (Ni), % 14 to 18
20 to 23
Nitrogen (N), % 0
0.21 to 0.32
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.020