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EN 1.7272 Steel vs. ASTM Grade HN Steel

Both EN 1.7272 steel and ASTM grade HN steel are iron alloys. They have 53% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.7272 steel and the bottom bar is ASTM grade HN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 490 to 1650
500

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 410
1080
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
13
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
26
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
4.6
Embodied Energy, MJ/kg 19
66
Embodied Water, L/kg 49
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17 to 59
17
Strength to Weight: Bending, points 18 to 40
18
Thermal Diffusivity, mm2/s 12
3.5
Thermal Shock Resistance, points 14 to 48
11

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.28 to 0.33
0.2 to 0.5
Chromium (Cr), % 0.4 to 0.55
19 to 23
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 97.2 to 98.3
44.9 to 57.8
Manganese (Mn), % 0.9 to 1.2
0 to 2.0
Molybdenum (Mo), % 0.1 to 0.15
0 to 0.5
Nickel (Ni), % 0
23 to 27
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.3
0 to 2.0
Sulfur (S), % 0 to 0.025
0 to 0.040