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S45500 Stainless Steel vs. ASTM A372 Grade B Steel

Both S45500 stainless steel and ASTM A372 grade B steel are iron alloys. They have 76% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is S45500 stainless steel and the bottom bar is ASTM A372 grade B steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 500
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 3.4 to 11
20
Fatigue Strength, MPa 570 to 890
240
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 790 to 1090
380
Tensile Strength: Ultimate (UTS), MPa 1370 to 1850
600
Tensile Strength: Yield (Proof), MPa 1240 to 1700
350

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 760
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 17
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.8
1.4
Embodied Energy, MJ/kg 57
18
Embodied Water, L/kg 120
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 45 to 190
100
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 48 to 65
21
Strength to Weight: Bending, points 35 to 42
20
Thermal Shock Resistance, points 48 to 64
19

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.35
Chromium (Cr), % 11 to 12.5
0
Copper (Cu), % 1.5 to 2.5
0
Iron (Fe), % 71.5 to 79.2
97.9 to 99.85
Manganese (Mn), % 0 to 0.5
0 to 1.4
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 7.5 to 9.5
0
Niobium (Nb), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.010
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 0.8 to 1.4
0