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EN 1.6956 Steel vs. ASTM A372 Grade C Steel

Both EN 1.6956 steel and ASTM A372 grade C steel are iron alloys. They have a moderately high 95% 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 EN 1.6956 steel and the bottom bar is ASTM A372 grade C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 370
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 9.6
17
Fatigue Strength, MPa 680
290
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 730
440
Tensile Strength: Ultimate (UTS), MPa 1230
710
Tensile Strength: Yield (Proof), MPa 1120
430

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 440
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 46
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.4
Embodied Energy, MJ/kg 31
19
Embodied Water, L/kg 60
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
100
Resilience: Unit (Modulus of Resilience), kJ/m3 3320
500
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 43
25
Strength to Weight: Bending, points 32
23
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 36
22

Alloy Composition

Carbon (C), % 0.28 to 0.38
0 to 0.48
Chromium (Cr), % 1.0 to 1.7
0
Iron (Fe), % 92.4 to 95.3
97.5 to 99.85
Manganese (Mn), % 0.15 to 0.4
0 to 1.7
Molybdenum (Mo), % 0.3 to 0.6
0
Nickel (Ni), % 2.9 to 3.8
0
Phosphorus (P), % 0 to 0.035
0 to 0.015
Silicon (Si), % 0 to 0.4
0.15 to 0.35
Sulfur (S), % 0 to 0.035
0 to 0.010
Vanadium (V), % 0.080 to 0.25
0