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ASTM Grade HI Steel vs. S41050 Stainless Steel

Both ASTM grade HI steel and S41050 stainless steel are iron alloys. They have 67% 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 HI steel and the bottom bar is S41050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
25
Fatigue Strength, MPa 150
160
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 550
470
Tensile Strength: Yield (Proof), MPa 270
230

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 1100
720
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1350
1400
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 15
27
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 23
7.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.1
1.9
Embodied Energy, MJ/kg 59
27
Embodied Water, L/kg 200
97

Common Calculations

PREN (Pitting Resistance) 29
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
98
Resilience: Unit (Modulus of Resilience), kJ/m3 180
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
17
Strength to Weight: Bending, points 19
17
Thermal Diffusivity, mm2/s 3.9
7.2
Thermal Shock Resistance, points 12
17

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.040
Chromium (Cr), % 26 to 30
10.5 to 12.5
Iron (Fe), % 46.9 to 59.8
84.2 to 88.9
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 14 to 18
0.6 to 1.1
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030