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ASTM A302 Alloy Steel vs. EN 1.4923 Stainless Steel

Both ASTM A302 alloy steel and EN 1.4923 stainless steel are iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM A302 alloy steel and the bottom bar is EN 1.4923 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 23
12 to 21
Fatigue Strength, MPa 250 to 280
300 to 440
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 370 to 390
540 to 590
Tensile Strength: Ultimate (UTS), MPa 590 to 620
870 to 980
Tensile Strength: Yield (Proof), MPa 350 to 390
470 to 780

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 410
740
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39 to 51
24
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.4
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.4
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4 to 3.0
8.0
Density, g/cm3 7.8 to 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
2.9
Embodied Energy, MJ/kg 20 to 21
41
Embodied Water, L/kg 48 to 50
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
110 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 410
570 to 1580
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 22
31 to 35
Strength to Weight: Bending, points 20 to 21
26 to 28
Thermal Diffusivity, mm2/s 10 to 14
6.5
Thermal Shock Resistance, points 17 to 18
30 to 34

Comparable Variants