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ASTM Grade HI Steel vs. N08330 Stainless Steel

Both ASTM grade HI steel and N08330 stainless steel are iron alloys. They have 80% 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 N08330 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
34
Fatigue Strength, MPa 150
190
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 550
550
Tensile Strength: Yield (Proof), MPa 270
230

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
1050
Melting Completion (Liquidus), °C 1400
1390
Melting Onset (Solidus), °C 1350
1340
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 23
32
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 4.1
5.4
Embodied Energy, MJ/kg 59
77
Embodied Water, L/kg 200
190

Common Calculations

PREN (Pitting Resistance) 29
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
150
Resilience: Unit (Modulus of Resilience), kJ/m3 180
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
19
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 3.9
3.1
Thermal Shock Resistance, points 12
13

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.080
Chromium (Cr), % 26 to 30
17 to 20
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 46.9 to 59.8
38.3 to 48.3
Lead (Pb), % 0
0 to 0.0050
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 14 to 18
34 to 37
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0.75 to 1.5
Sulfur (S), % 0 to 0.040
0 to 0.030
Tin (Sn), % 0
0 to 0.025