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ASTM A414 Steel vs. EN 1.4550 Stainless Steel

Both ASTM A414 steel and EN 1.4550 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 A414 steel and the bottom bar is EN 1.4550 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 180
200
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 15 to 26
42
Fatigue Strength, MPa 140 to 260
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 230 to 370
430
Tensile Strength: Ultimate (UTS), MPa 360 to 590
620
Tensile Strength: Yield (Proof), MPa 190 to 350
230

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
940
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 49 to 50
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.3
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3 to 8.4
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
18
Density, g/cm3 7.8 to 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
3.6
Embodied Energy, MJ/kg 20 to 22
51
Embodied Water, L/kg 48
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 69 to 130
210
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 330
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 13 to 21
22
Strength to Weight: Bending, points 14 to 20
21
Thermal Diffusivity, mm2/s 13
4.0
Thermal Shock Resistance, points 11 to 17
14