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ASTM Grade HT Steel vs. EN 1.0225 Steel

Both ASTM grade HT steel and EN 1.0225 steel are iron alloys. They have 46% of their average alloy composition in common. There are 30 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 1.0225 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
130 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 4.6
6.7 to 24
Fatigue Strength, MPa 130
170 to 220
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 500
440 to 500
Tensile Strength: Yield (Proof), MPa 270
230 to 380

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1010
400
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1340
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
52
Thermal Expansion, µm/m-K 15
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 31
1.8
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.4
1.4
Embodied Energy, MJ/kg 76
18
Embodied Water, L/kg 190
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
31 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 180
140 to 390
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
16 to 18
Strength to Weight: Bending, points 18
16 to 18
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 12
14 to 16

Alloy Composition

Carbon (C), % 0.35 to 0.75
0 to 0.21
Chromium (Cr), % 15 to 19
0
Iron (Fe), % 38.2 to 51.7
98 to 100
Manganese (Mn), % 0 to 2.0
0 to 1.4
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 33 to 37
0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 2.5
0 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.045