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EN 1.7366 Steel vs. ASTM Grade HH Steel

Both EN 1.7366 steel and ASTM grade HH steel are iron alloys. They have 65% of their average alloy composition in common. There are 31 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 EN 1.7366 steel and the bottom bar is ASTM grade HH steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 210
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17 to 19
11
Fatigue Strength, MPa 160 to 320
150
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
79
Tensile Strength: Ultimate (UTS), MPa 460 to 710
580
Tensile Strength: Yield (Proof), MPa 230 to 480
270

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Maximum Temperature: Mechanical, °C 510
1100
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
14
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
20
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.7
3.7
Embodied Energy, MJ/kg 23
53
Embodied Water, L/kg 69
180

Common Calculations

PREN (Pitting Resistance) 6.8
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 110
53
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 600
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 16 to 25
21
Strength to Weight: Bending, points 17 to 23
20
Thermal Diffusivity, mm2/s 11
3.8
Thermal Shock Resistance, points 13 to 20
12

Alloy Composition

Carbon (C), % 0 to 0.18
0.2 to 0.5
Chromium (Cr), % 4.0 to 6.0
24 to 28
Iron (Fe), % 91.9 to 95.3
52.9 to 64.8
Manganese (Mn), % 0.3 to 0.8
0 to 2.0
Molybdenum (Mo), % 0.45 to 0.65
0 to 0.5
Nickel (Ni), % 0
11 to 14
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.040