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EN 1.4903 Stainless Steel vs. ASTM A202 Steel

Both EN 1.4903 stainless steel and ASTM A202 steel are iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4903 stainless steel and the bottom bar is ASTM A202 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 21
17 to 18
Fatigue Strength, MPa 320 to 330
240
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 420
360 to 410
Tensile Strength: Ultimate (UTS), MPa 670 to 680
590 to 670
Tensile Strength: Yield (Proof), MPa 500
350 to 360

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 650
410
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
52
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.4
Embodied Energy, MJ/kg 36
19
Embodied Water, L/kg 88
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
93 to 96
Resilience: Unit (Modulus of Resilience), kJ/m3 650
330 to 350
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
21 to 24
Strength to Weight: Bending, points 22
20 to 22
Thermal Diffusivity, mm2/s 7.0
14
Thermal Shock Resistance, points 23
17 to 20

Comparable Variants