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ASTM A514 Steel vs. AISI 314 Stainless Steel

Both ASTM A514 steel and AISI 314 stainless steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A514 steel and the bottom bar is AISI 314 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240 to 250
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18 to 21
45
Fatigue Strength, MPa 470 to 540
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 490 to 520
410
Tensile Strength: Ultimate (UTS), MPa 790 to 830
590
Tensile Strength: Yield (Proof), MPa 690 to 770
230

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
330
Maximum Temperature: Mechanical, °C 400 to 440
1100
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 37 to 51
15
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.6
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3 to 8.8
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 3.8
25
Density, g/cm3 7.8 to 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.6 to 1.8
4.3
Embodied Energy, MJ/kg 21 to 25
62
Embodied Water, L/kg 48 to 57
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 170
210
Resilience: Unit (Modulus of Resilience), kJ/m3 1280 to 1590
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 28 to 29
21
Strength to Weight: Bending, points 24 to 25
20
Thermal Diffusivity, mm2/s 10 to 14
3.9
Thermal Shock Resistance, points 23 to 24
14