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ASTM A372 Grade A Steel vs. S46500 Stainless Steel

Both ASTM A372 grade A steel and S46500 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 25 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 ASTM A372 grade A steel and the bottom bar is S46500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
2.3 to 14
Fatigue Strength, MPa 190
550 to 890
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 320
730 to 1120
Tensile Strength: Ultimate (UTS), MPa 500
1260 to 1930
Tensile Strength: Yield (Proof), MPa 270
1120 to 1810

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
780
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
15
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
3.6
Embodied Energy, MJ/kg 18
51
Embodied Water, L/kg 45
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
43 to 210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18
44 to 68
Strength to Weight: Bending, points 18
33 to 44
Thermal Shock Resistance, points 16
44 to 67

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.020
Chromium (Cr), % 0
11 to 12.5
Iron (Fe), % 98.3 to 99.85
72.6 to 76.1
Manganese (Mn), % 0 to 1.0
0 to 0.25
Molybdenum (Mo), % 0
0.75 to 1.3
Nickel (Ni), % 0
10.7 to 11.3
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.015
0 to 0.015
Silicon (Si), % 0.15 to 0.35
0 to 0.25
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 0
1.5 to 1.8