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ASTM A372 Grade E Steel vs. S15500 Stainless Steel

Both ASTM A372 grade E steel and S15500 stainless steel are iron alloys. They have 78% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM A372 grade E steel and the bottom bar is S15500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 280
290 to 430
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 22
6.8 to 16
Fatigue Strength, MPa 310 to 380
350 to 650
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 410 to 570
540 to 870
Tensile Strength: Ultimate (UTS), MPa 650 to 910
890 to 1490
Tensile Strength: Yield (Proof), MPa 430 to 550
590 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 420
820
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 44
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
2.7
Embodied Energy, MJ/kg 20
39
Embodied Water, L/kg 51
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 160
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 810
890 to 4460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 32
32 to 53
Strength to Weight: Bending, points 21 to 27
26 to 37
Thermal Diffusivity, mm2/s 12
4.6
Thermal Shock Resistance, points 19 to 27
30 to 50

Alloy Composition

Carbon (C), % 0.25 to 0.35
0 to 0.070
Chromium (Cr), % 0.8 to 1.2
14 to 15.5
Copper (Cu), % 0
2.5 to 4.5
Iron (Fe), % 97 to 98.3
71.9 to 79.9
Manganese (Mn), % 0.4 to 0.9
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0
3.5 to 5.5
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030

Comparable Variants