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ASTM Grade HI Steel vs. AISI 416Se Stainless Steel

Both ASTM grade HI steel and AISI 416Se stainless steel are iron alloys. They have 68% 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 AISI 416Se stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
230
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
23
Fatigue Strength, MPa 150
210
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 550
540
Tensile Strength: Yield (Proof), MPa 270
310

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 1100
760
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
30
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
8.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.1
1.9
Embodied Energy, MJ/kg 59
27
Embodied Water, L/kg 200
100

Common Calculations

PREN (Pitting Resistance) 29
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
110
Resilience: Unit (Modulus of Resilience), kJ/m3 180
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
20
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 3.9
8.1
Thermal Shock Resistance, points 12
20

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.15
Chromium (Cr), % 26 to 30
12 to 14
Iron (Fe), % 46.9 to 59.8
83.1 to 87.9
Manganese (Mn), % 0 to 2.0
0 to 1.3
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 14 to 18
0
Phosphorus (P), % 0 to 0.040
0 to 0.060
Selenium (Se), % 0
0.15 to 0.35
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.060