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ASTM A372 Grade M Steel vs. EN 1.3555 Steel

Both ASTM A372 grade M steel and EN 1.3555 steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ASTM A372 grade M steel and the bottom bar is EN 1.3555 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240 to 280
230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 810 to 910
770

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 450
540
Melting Completion (Liquidus), °C 1460
1500
Melting Onset (Solidus), °C 1420
1450
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
11

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
11
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.0
5.6
Embodied Energy, MJ/kg 27
81
Embodied Water, L/kg 61
90

Common Calculations

PREN (Pitting Resistance) 3.4
18
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29 to 32
27
Strength to Weight: Bending, points 24 to 27
23
Thermal Shock Resistance, points 24 to 27
22

Alloy Composition

Carbon (C), % 0 to 0.23
0.1 to 0.15
Chromium (Cr), % 1.5 to 2.0
3.9 to 4.3
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 92.5 to 95.1
85.4 to 87.7
Manganese (Mn), % 0.2 to 0.4
0.15 to 0.35
Molybdenum (Mo), % 0.4 to 0.6
4.0 to 4.5
Nickel (Ni), % 2.8 to 3.9
3.2 to 3.6
Phosphorus (P), % 0 to 0.015
0 to 0.015
Silicon (Si), % 0 to 0.3
0.1 to 0.25
Sulfur (S), % 0 to 0.010
0 to 0.010
Tungsten (W), % 0
0 to 0.15
Vanadium (V), % 0 to 0.080
1.0 to 1.3