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ASTM A203 Steel vs. EN 1.4422 Stainless Steel

Both ASTM A203 steel and EN 1.4422 stainless 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 ASTM A203 steel and the bottom bar is EN 1.4422 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22 to 26
17
Fatigue Strength, MPa 210 to 280
380
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 330 to 370
520
Tensile Strength: Ultimate (UTS), MPa 520 to 590
850
Tensile Strength: Yield (Proof), MPa 290 to 390
630

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 410
760
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 52
16
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4 to 7.6
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5 to 8.7
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.2 to 4.0
11
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6 to 1.7
2.7
Embodied Energy, MJ/kg 21 to 23
37
Embodied Water, L/kg 50 to 52
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
130
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 410
1000
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 21
30
Strength to Weight: Bending, points 18 to 20
25
Thermal Diffusivity, mm2/s 14
4.3
Thermal Shock Resistance, points 15 to 17
31