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ASTM Grade HT Steel vs. EN 1.8505 Steel

Both ASTM grade HT steel and EN 1.8505 steel are iron alloys. They have 48% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HT steel and the bottom bar is EN 1.8505 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
320
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 4.6
13
Fatigue Strength, MPa 130
540
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 500
1050
Tensile Strength: Yield (Proof), MPa 270
860

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1010
440
Melting Completion (Liquidus), °C 1390
1450
Melting Onset (Solidus), °C 1340
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
39
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 31
2.8
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.4
1.6
Embodied Energy, MJ/kg 76
22
Embodied Water, L/kg 190
65

Common Calculations

PREN (Pitting Resistance) 18
2.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
120
Resilience: Unit (Modulus of Resilience), kJ/m3 180
1950
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18
37
Strength to Weight: Bending, points 18
30
Thermal Diffusivity, mm2/s 3.2
11
Thermal Shock Resistance, points 12
31

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0.35 to 0.75
0.28 to 0.35
Chromium (Cr), % 15 to 19
1.5 to 1.8
Iron (Fe), % 38.2 to 51.7
95.4 to 97.1
Manganese (Mn), % 0 to 2.0
0.4 to 0.7
Molybdenum (Mo), % 0 to 0.5
0.2 to 0.4
Nickel (Ni), % 33 to 37
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 2.5
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.035