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N08028 Stainless Steel vs. ASTM Grade HK Steel

Both N08028 stainless steel and ASTM grade HK steel are iron alloys. They have 82% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is N08028 stainless steel and the bottom bar is ASTM grade HK steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
11
Fatigue Strength, MPa 220
150
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 80
79
Tensile Strength: Ultimate (UTS), MPa 570
500
Tensile Strength: Yield (Proof), MPa 240
270

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Maximum Temperature: Corrosion, °C 460
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1420
1400
Melting Onset (Solidus), °C 1370
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 37
25
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.4
4.4
Embodied Energy, MJ/kg 89
63
Embodied Water, L/kg 240
200

Common Calculations

PREN (Pitting Resistance) 39
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
48
Resilience: Unit (Modulus of Resilience), kJ/m3 140
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
18
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 3.2
3.9
Thermal Shock Resistance, points 12
11

Alloy Composition

Carbon (C), % 0 to 0.030
0.2 to 0.6
Chromium (Cr), % 26 to 28
24 to 28
Copper (Cu), % 0.6 to 1.4
0
Iron (Fe), % 29 to 40.4
44.8 to 57.8
Manganese (Mn), % 0 to 2.5
0 to 2.0
Molybdenum (Mo), % 3.0 to 4.0
0 to 0.5
Nickel (Ni), % 30 to 34
18 to 22
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040