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ASTM Grade HH Steel vs. EN 1.6553 Steel

Both ASTM grade HH steel and EN 1.6553 steel are iron alloys. They have 62% 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 1.6553 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
210 to 240
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
19 to 21
Fatigue Strength, MPa 150
330 to 460
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 580
710 to 800
Tensile Strength: Yield (Proof), MPa 270
470 to 670

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
420
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
39
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 20
2.7
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.7
1.6
Embodied Energy, MJ/kg 53
21
Embodied Water, L/kg 180
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 53
130 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 190
600 to 1190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
25 to 28
Strength to Weight: Bending, points 20
23 to 24
Thermal Diffusivity, mm2/s 3.8
10
Thermal Shock Resistance, points 12
21 to 23

Alloy Composition

Carbon (C), % 0.2 to 0.5
0.23 to 0.28
Chromium (Cr), % 24 to 28
0.4 to 0.8
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 52.9 to 64.8
95.6 to 98.2
Manganese (Mn), % 0 to 2.0
0.6 to 1.0
Molybdenum (Mo), % 0 to 0.5
0.15 to 0.3
Nickel (Ni), % 11 to 14
0.4 to 0.8
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.025
Vanadium (V), % 0
0 to 0.030