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ASTM A372 Grade G Steel vs. EN 1.8888 Steel

Both ASTM A372 grade G steel and EN 1.8888 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A372 grade G steel and the bottom bar is EN 1.8888 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 280
250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 22
16
Fatigue Strength, MPa 310 to 380
470
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 410 to 570
510
Tensile Strength: Ultimate (UTS), MPa 650 to 910
830
Tensile Strength: Yield (Proof), MPa 430 to 550
720

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 410
420
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 46
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
3.7
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.9
Embodied Energy, MJ/kg 20
26
Embodied Water, L/kg 49
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 160
130
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 810
1370
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 32
29
Strength to Weight: Bending, points 21 to 27
25
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 19 to 27
24

Alloy Composition

Boron (B), % 0
0 to 0.0050
Carbon (C), % 0.25 to 0.35
0 to 0.2
Chromium (Cr), % 0.4 to 0.65
0 to 1.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 97.4 to 98.4
91.9 to 100
Manganese (Mn), % 0.7 to 1.0
0 to 1.7
Molybdenum (Mo), % 0.15 to 0.25
0 to 0.7
Nickel (Ni), % 0
0 to 2.5
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.015
0 to 0.020
Silicon (Si), % 0.15 to 0.35
0 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.0050
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0 to 0.12
Zirconium (Zr), % 0
0 to 0.15