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ASTM A372 Grade J Steel vs. EN 1.0237 Steel

Both ASTM A372 grade J steel and EN 1.0237 steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is ASTM A372 grade J steel and the bottom bar is EN 1.0237 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 310
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 22
20
Fatigue Strength, MPa 310 to 570
250
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 410 to 630
290
Tensile Strength: Ultimate (UTS), MPa 650 to 1020
470
Tensile Strength: Yield (Proof), MPa 430 to 850
360

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
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 44
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
18
Embodied Water, L/kg 51
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 170
88
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 1930
340
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 36
17
Strength to Weight: Bending, points 21 to 29
17
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 19 to 30
15

Alloy Composition

Carbon (C), % 0.35 to 0.5
0 to 0.2
Chromium (Cr), % 0.8 to 1.2
0
Iron (Fe), % 96.7 to 97.8
98 to 100
Manganese (Mn), % 0.75 to 1.1
0 to 1.4
Molybdenum (Mo), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0.15 to 0.35
0 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.045