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ASTM A372 Grade C Steel vs. EN 1.4404 Stainless Steel

Both ASTM A372 grade C steel and EN 1.4404 stainless steel are iron alloys. They have 68% 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 1.4404 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
14 to 43
Fatigue Strength, MPa 290
220 to 320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 440
420 to 550
Tensile Strength: Ultimate (UTS), MPa 710
600 to 900
Tensile Strength: Yield (Proof), MPa 430
240 to 570

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
950
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
3.8
Embodied Energy, MJ/kg 19
52
Embodied Water, L/kg 46
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
110 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 500
140 to 800
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25
21 to 32
Strength to Weight: Bending, points 23
20 to 26
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 22
13 to 20

Alloy Composition

Carbon (C), % 0 to 0.48
0 to 0.030
Chromium (Cr), % 0
16.5 to 18.5
Iron (Fe), % 97.5 to 99.85
62.8 to 71.5
Manganese (Mn), % 0 to 1.7
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 0
10 to 13
Nitrogen (N), % 0
0 to 0.1
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