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EN 1.7366 Steel vs. ASTM Grade HT Steel

Both EN 1.7366 steel and ASTM grade HT steel are iron alloys. They have 51% 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 EN 1.7366 steel and the bottom bar is ASTM grade HT steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 210
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 19
4.6
Fatigue Strength, MPa 160 to 320
130
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Tensile Strength: Ultimate (UTS), MPa 460 to 710
500
Tensile Strength: Yield (Proof), MPa 230 to 480
270

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Maximum Temperature: Mechanical, °C 510
1010
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
12
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
31
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.7
5.4
Embodied Energy, MJ/kg 23
76
Embodied Water, L/kg 69
190

Common Calculations

PREN (Pitting Resistance) 6.8
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 110
19
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 600
180
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 16 to 25
18
Strength to Weight: Bending, points 17 to 23
18
Thermal Diffusivity, mm2/s 11
3.2
Thermal Shock Resistance, points 13 to 20
12

Alloy Composition

Carbon (C), % 0 to 0.18
0.35 to 0.75
Chromium (Cr), % 4.0 to 6.0
15 to 19
Iron (Fe), % 91.9 to 95.3
38.2 to 51.7
Manganese (Mn), % 0.3 to 0.8
0 to 2.0
Molybdenum (Mo), % 0.45 to 0.65
0 to 0.5
Nickel (Ni), % 0
33 to 37
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 2.5
Sulfur (S), % 0 to 0.015
0 to 0.040