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ASTM Grade HH Steel vs. EN 1.5502 Steel

Both ASTM grade HH steel and EN 1.5502 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 (4, 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 1.5502 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
120 to 160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
12 to 20
Fatigue Strength, MPa 150
190 to 290
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 580
400 to 1380
Tensile Strength: Yield (Proof), MPa 270
270 to 440

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
52
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 20
1.9
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
41 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 190
200 to 520
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
14 to 49
Strength to Weight: Bending, points 20
15 to 35
Thermal Diffusivity, mm2/s 3.8
14
Thermal Shock Resistance, points 12
12 to 40

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0.2 to 0.5
0.15 to 0.2
Chromium (Cr), % 24 to 28
0 to 0.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 52.9 to 64.8
98 to 99.249
Manganese (Mn), % 0 to 2.0
0.6 to 0.9
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 11 to 14
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 2.0
0 to 0.3
Sulfur (S), % 0 to 0.040
0 to 0.025