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S21800 Stainless Steel vs. ASTM A514 Steel

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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