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ASTM Grade HH Steel vs. EN 1.1151 Steel

Both ASTM grade HH steel and EN 1.1151 steel are iron alloys. They have 60% 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 HH steel and the bottom bar is EN 1.1151 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
130 to 150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
21 to 26
Fatigue Strength, MPa 150
180 to 240
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 580
460 to 520
Tensile Strength: Yield (Proof), MPa 270
240 to 340

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 14
50
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 20
2.1
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.7
1.4
Embodied Energy, MJ/kg 53
19
Embodied Water, L/kg 180
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 53
98 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 190
160 to 310
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
16 to 18
Strength to Weight: Bending, points 20
17 to 18
Thermal Diffusivity, mm2/s 3.8
13
Thermal Shock Resistance, points 12
15 to 16

Alloy Composition

Carbon (C), % 0.2 to 0.5
0.17 to 0.24
Chromium (Cr), % 24 to 28
0 to 0.4
Iron (Fe), % 52.9 to 64.8
97.7 to 99.43
Manganese (Mn), % 0 to 2.0
0.4 to 0.7
Molybdenum (Mo), % 0 to 0.5
0 to 0.1
Nickel (Ni), % 11 to 14
0 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 2.0
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.035