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EN 1.7365 Steel vs. ASTM A372 Grade B Steel

Both EN 1.7365 steel and ASTM A372 grade B steel are iron alloys. They have a moderately high 94% 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 EN 1.7365 steel and the bottom bar is ASTM A372 grade B steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18
20
Fatigue Strength, MPa 320
240
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Tensile Strength: Ultimate (UTS), MPa 700
600
Tensile Strength: Yield (Proof), MPa 470
350

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 510
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.4
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 4.4
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.4
Embodied Energy, MJ/kg 24
18
Embodied Water, L/kg 70
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
100
Resilience: Unit (Modulus of Resilience), kJ/m3 580
330
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
21
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 20
19

Alloy Composition

Carbon (C), % 0.12 to 0.19
0 to 0.35
Chromium (Cr), % 4.0 to 6.0
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 91.2 to 94.9
97.9 to 99.85
Manganese (Mn), % 0.5 to 0.8
0 to 1.4
Molybdenum (Mo), % 0.45 to 0.65
0
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0 to 0.8
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.010
Vanadium (V), % 0 to 0.050
0