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ASTM Grade HK Steel vs. N08332 Stainless Steel

Both ASTM grade HK steel and N08332 stainless steel are iron alloys. They have 84% 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 HK steel and the bottom bar is N08332 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
34
Fatigue Strength, MPa 150
170
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 500
520
Tensile Strength: Yield (Proof), MPa 270
210

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 440
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 480
480
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 25
32
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 4.4
5.4
Embodied Energy, MJ/kg 63
77
Embodied Water, L/kg 200
190

Common Calculations

PREN (Pitting Resistance) 27
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
140
Resilience: Unit (Modulus of Resilience), kJ/m3 190
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
18
Strength to Weight: Bending, points 18
18
Thermal Diffusivity, mm2/s 3.9
3.1
Thermal Shock Resistance, points 11
12

Alloy Composition

Carbon (C), % 0.2 to 0.6
0.050 to 0.1
Chromium (Cr), % 24 to 28
17 to 20
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 44.8 to 57.8
38.3 to 48.2
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), % 18 to 22
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