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EN 1.3551 Steel vs. ASTM Grade HT Steel

Both EN 1.3551 steel and ASTM grade HT steel are iron alloys. They have 50% of their average alloy composition in common. There are 26 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 1.3551 steel and the bottom bar is ASTM grade HT steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 720
500

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Maximum Temperature: Mechanical, °C 530
1010
Melting Completion (Liquidus), °C 1490
1390
Melting Onset (Solidus), °C 1450
1340
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 36
12
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.6
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 9.9
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
31
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 4.9
5.4
Embodied Energy, MJ/kg 71
76
Embodied Water, L/kg 82
190

Common Calculations

PREN (Pitting Resistance) 18
18
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
18
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 9.8
3.2
Thermal Shock Resistance, points 21
12

Alloy Composition

Carbon (C), % 0.77 to 0.85
0.35 to 0.75
Chromium (Cr), % 3.9 to 4.3
15 to 19
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 88.8 to 91.1
38.2 to 51.7
Manganese (Mn), % 0.15 to 0.35
0 to 2.0
Molybdenum (Mo), % 4.0 to 4.5
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
Tungsten (W), % 0 to 0.25
0
Vanadium (V), % 0.9 to 1.1
0