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EN 1.4594 Stainless Steel vs. ASTM A302 Alloy Steel

Both EN 1.4594 stainless steel and ASTM A302 alloy steel are iron alloys. There are 30 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 EN 1.4594 stainless steel and the bottom bar is ASTM A302 alloy steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11 to 17
20 to 23
Fatigue Strength, MPa 490 to 620
250 to 280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 620 to 700
370 to 390
Tensile Strength: Ultimate (UTS), MPa 1020 to 1170
590 to 620
Tensile Strength: Yield (Proof), MPa 810 to 1140
350 to 390

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 820
410
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
39 to 51
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.2 to 7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.2 to 8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 15
2.4 to 3.0
Density, g/cm3 7.9
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 3.2
1.5 to 1.6
Embodied Energy, MJ/kg 45
20 to 21
Embodied Water, L/kg 130
48 to 50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 1660 to 3320
330 to 410
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 36 to 41
21 to 22
Strength to Weight: Bending, points 29 to 31
20 to 21
Thermal Diffusivity, mm2/s 4.4
10 to 14
Thermal Shock Resistance, points 34 to 39
17 to 18