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ASTM A514 Steel vs. S21800 Stainless Steel

Both ASTM A514 steel and S21800 stainless steel are iron alloys. 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 A514 steel and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240 to 250
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 21
40
Fatigue Strength, MPa 470 to 540
330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 490 to 520
510
Tensile Strength: Ultimate (UTS), MPa 790 to 830
740
Tensile Strength: Yield (Proof), MPa 690 to 770
390

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
340
Maximum Temperature: Mechanical, °C 400 to 440
900
Melting Completion (Liquidus), °C 1460
1360
Melting Onset (Solidus), °C 1420
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 3.8
15
Density, g/cm3 7.8 to 7.9
7.5
Embodied Carbon, kg CO2/kg material 1.6 to 1.8
3.1
Embodied Energy, MJ/kg 21 to 25
45
Embodied Water, L/kg 48 to 57
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 170
250
Resilience: Unit (Modulus of Resilience), kJ/m3 1280 to 1590
390
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 28 to 29
27
Strength to Weight: Bending, points 24 to 25
24
Thermal Shock Resistance, points 23 to 24
17