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ASTM Grade HN Steel vs. ASTM A182 Grade F24

Both ASTM grade HN steel and ASTM A182 grade F24 are iron alloys. They have 55% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HN steel and the bottom bar is ASTM A182 grade F24.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 9.0
23
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 500
670

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Maximum Temperature: Mechanical, °C 1080
460
Melting Completion (Liquidus), °C 1400
1470
Melting Onset (Solidus), °C 1350
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 13
39
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 26
4.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.6
2.3
Embodied Energy, MJ/kg 66
33
Embodied Water, L/kg 180
61

Common Calculations

PREN (Pitting Resistance) 22
6.7
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
24
Strength to Weight: Bending, points 18
22
Thermal Diffusivity, mm2/s 3.5
11
Thermal Shock Resistance, points 11
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.0015 to 0.0070
Carbon (C), % 0.2 to 0.5
0.050 to 0.1
Chromium (Cr), % 19 to 23
2.2 to 2.6
Iron (Fe), % 44.9 to 57.8
94.5 to 96.1
Manganese (Mn), % 0 to 2.0
0.3 to 0.7
Molybdenum (Mo), % 0 to 0.5
0.9 to 1.1
Nickel (Ni), % 23 to 27
0
Nitrogen (N), % 0
0 to 0.12
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 2.0
0.15 to 0.45
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
0.060 to 0.1
Vanadium (V), % 0
0.2 to 0.3