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EN 1.4029 Stainless Steel vs. ASTM A203 Steel

Both EN 1.4029 stainless steel and ASTM A203 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 1.4029 stainless steel and the bottom bar is ASTM A203 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 10 to 20
22 to 26
Fatigue Strength, MPa 270 to 400
210 to 280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 440 to 550
330 to 370
Tensile Strength: Ultimate (UTS), MPa 700 to 930
520 to 590
Tensile Strength: Yield (Proof), MPa 410 to 740
290 to 390

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 750
410
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
52
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
8.5 to 8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
3.2 to 4.0
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
1.6 to 1.7
Embodied Energy, MJ/kg 28
21 to 23
Embodied Water, L/kg 100
50 to 52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 120
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 1410
230 to 410
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25 to 33
18 to 21
Strength to Weight: Bending, points 23 to 27
18 to 20
Thermal Diffusivity, mm2/s 8.1
14
Thermal Shock Resistance, points 26 to 34
15 to 17