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ASTM A387 Grade 2 Steel vs. S21460 Stainless Steel

Both ASTM A387 grade 2 steel and S21460 stainless steel are iron alloys. They have 62% of their average alloy composition in common. There are 28 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 A387 grade 2 steel and the bottom bar is S21460 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 170
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
46
Fatigue Strength, MPa 190 to 250
390
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 300 to 350
580
Tensile Strength: Ultimate (UTS), MPa 470 to 550
830
Tensile Strength: Yield (Proof), MPa 260 to 350
430

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
920
Melting Completion (Liquidus), °C 1470
1380
Melting Onset (Solidus), °C 1420
1330
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
18

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
14
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 1.6
3.0
Embodied Energy, MJ/kg 20
43
Embodied Water, L/kg 50
160

Common Calculations

PREN (Pitting Resistance) 2.4
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
320
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16 to 20
30
Strength to Weight: Bending, points 17 to 19
26
Thermal Shock Resistance, points 14 to 16
17

Alloy Composition

Carbon (C), % 0.050 to 0.21
0 to 0.12
Chromium (Cr), % 0.5 to 0.8
17 to 19
Iron (Fe), % 97.1 to 98.3
57.3 to 63.7
Manganese (Mn), % 0.55 to 0.8
14 to 16
Molybdenum (Mo), % 0.45 to 0.6
0
Nickel (Ni), % 0
5.0 to 6.0
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0 to 0.025
0 to 0.060
Silicon (Si), % 0.15 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030