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ASTM A209 Steel vs. EN 1.4938 Stainless Steel

Both ASTM A209 steel and EN 1.4938 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 A209 steel and the bottom bar is EN 1.4938 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 34
16 to 17
Fatigue Strength, MPa 180 to 200
390 to 520
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 280 to 310
540 to 630
Tensile Strength: Ultimate (UTS), MPa 420 to 460
870 to 1030
Tensile Strength: Yield (Proof), MPa 220 to 250
640 to 870

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 410
750
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420 to 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
30
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1 to 8.2
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
10
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5
3.3
Embodied Energy, MJ/kg 20
47
Embodied Water, L/kg 47
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 170
1050 to 1920
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 15 to 16
31 to 37
Strength to Weight: Bending, points 16 to 17
26 to 29
Thermal Diffusivity, mm2/s 13
8.1
Thermal Shock Resistance, points 12 to 14
30 to 35