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EN 1.4122 Stainless Steel vs. ASTM A209 Steel

Both EN 1.4122 stainless steel and ASTM A209 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 1.4122 stainless steel and the bottom bar is ASTM A209 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14
34
Fatigue Strength, MPa 260 to 360
180 to 200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 480 to 520
280 to 310
Tensile Strength: Ultimate (UTS), MPa 790 to 850
420 to 460
Tensile Strength: Yield (Proof), MPa 450 to 630
220 to 250

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 870
410
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1400
1420 to 1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
50
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.4
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.4
1.5
Embodied Energy, MJ/kg 33
20
Embodied Water, L/kg 120
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93 to 110
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 520 to 1000
130 to 170
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 31
15 to 16
Strength to Weight: Bending, points 25 to 26
16 to 17
Thermal Diffusivity, mm2/s 4.0
13
Thermal Shock Resistance, points 28 to 30
12 to 14