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AISI 414 Stainless Steel vs. ASTM A372 Grade C Steel

Both AISI 414 stainless steel and ASTM A372 grade C steel are iron alloys. They have 85% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 414 stainless steel and the bottom bar is ASTM A372 grade C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
17
Fatigue Strength, MPa 430 to 480
290
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 550 to 590
440
Tensile Strength: Ultimate (UTS), MPa 900 to 960
710
Tensile Strength: Yield (Proof), MPa 700 to 790
430

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 750
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
51
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
1.4
Embodied Energy, MJ/kg 29
19
Embodied Water, L/kg 100
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
100
Resilience: Unit (Modulus of Resilience), kJ/m3 1260 to 1590
500
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 34
25
Strength to Weight: Bending, points 27 to 28
23
Thermal Diffusivity, mm2/s 6.7
14
Thermal Shock Resistance, points 33 to 35
22

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.48
Chromium (Cr), % 11.5 to 13.5
0
Iron (Fe), % 81.8 to 87.3
97.5 to 99.85
Manganese (Mn), % 0 to 1.0
0 to 1.7
Nickel (Ni), % 1.3 to 2.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.010