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ASTM A372 Grade L Steel vs. S21600 Stainless Steel

Both ASTM A372 grade L steel and S21600 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ASTM A372 grade L steel and the bottom bar is S21600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 350
200
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14
46
Fatigue Strength, MPa 670
360
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 700
500
Tensile Strength: Ultimate (UTS), MPa 1160
710
Tensile Strength: Yield (Proof), MPa 1040
390

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 430
990
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.7
3.6
Embodied Energy, MJ/kg 22
50
Embodied Water, L/kg 54
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
270
Resilience: Unit (Modulus of Resilience), kJ/m3 2890
370
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 41
25
Strength to Weight: Bending, points 31
23
Thermal Shock Resistance, points 34
15

Alloy Composition

Carbon (C), % 0.38 to 0.43
0 to 0.080
Chromium (Cr), % 0.7 to 0.9
17.5 to 22
Iron (Fe), % 95.2 to 96.3
57.6 to 67.8
Manganese (Mn), % 0.6 to 0.8
7.5 to 9.0
Molybdenum (Mo), % 0.2 to 0.3
2.0 to 3.0
Nickel (Ni), % 1.7 to 2.0
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0.15 to 0.35
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030