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ASTM Grade HI Steel vs. AISI 416 Stainless Steel

Both ASTM grade HI steel and AISI 416 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 (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 AISI 416 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
230 to 320
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
13 to 31
Fatigue Strength, MPa 150
230 to 340
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 550
510 to 800
Tensile Strength: Yield (Proof), MPa 270
290 to 600

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 1100
680
Melting Completion (Liquidus), °C 1400
1530
Melting Onset (Solidus), °C 1350
1480
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 15
30
Thermal Expansion, µm/m-K 17
9.9

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
7.7
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
98 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 180
220 to 940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
18 to 29
Strength to Weight: Bending, points 19
18 to 25
Thermal Diffusivity, mm2/s 3.9
8.1
Thermal Shock Resistance, points 12
19 to 30

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
83.2 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
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0.15 to 0.35