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ASTM A372 Grade D Steel vs. S20910 Stainless Steel

Both ASTM A372 grade D steel and S20910 stainless steel are iron alloys. They have 59% of their average alloy composition in common. There are 29 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 D steel and the bottom bar is S20910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
230 to 290
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
14 to 39
Fatigue Strength, MPa 340
310 to 460
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 500
500 to 570
Tensile Strength: Ultimate (UTS), MPa 810
780 to 940
Tensile Strength: Yield (Proof), MPa 510
430 to 810

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1080
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
13
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
22
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
4.8
Embodied Energy, MJ/kg 20
68
Embodied Water, L/kg 48
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 700
460 to 1640
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
28 to 33
Strength to Weight: Bending, points 25
24 to 27
Thermal Diffusivity, mm2/s 14
3.6
Thermal Shock Resistance, points 26
17 to 21

Alloy Composition

Carbon (C), % 0.4 to 0.5
0 to 0.060
Chromium (Cr), % 0
20.5 to 23.5
Iron (Fe), % 97.1 to 97.9
52.1 to 62.1
Manganese (Mn), % 1.4 to 1.8
4.0 to 6.0
Molybdenum (Mo), % 0.17 to 0.27
1.5 to 3.0
Nickel (Ni), % 0
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030
Vanadium (V), % 0
0.1 to 0.3