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ASTM A372 Grade C Steel vs. EN 1.4912 Stainless Steel

Both ASTM A372 grade C steel and EN 1.4912 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 31 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 ASTM A372 grade C steel and the bottom bar is EN 1.4912 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
40
Fatigue Strength, MPa 290
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 440
420
Tensile Strength: Ultimate (UTS), MPa 710
610
Tensile Strength: Yield (Proof), MPa 430
230

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
940
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
16
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
20
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.8
Embodied Energy, MJ/kg 19
55
Embodied Water, L/kg 46
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
190
Resilience: Unit (Modulus of Resilience), kJ/m3 500
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25
22
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 14
4.2
Thermal Shock Resistance, points 22
14

Alloy Composition

Carbon (C), % 0 to 0.48
0.040 to 0.1
Chromium (Cr), % 0
17 to 19
Iron (Fe), % 97.5 to 99.85
64.6 to 73.6
Manganese (Mn), % 0 to 1.7
0 to 2.0
Nickel (Ni), % 0
9.0 to 12
Niobium (Nb), % 0
0.4 to 1.2
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015