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SAE-AISI 1345 Steel vs. EN 1.4122 Stainless Steel

Both SAE-AISI 1345 steel and EN 1.4122 stainless steel are iron alloys. They have 82% of their average alloy composition in common. 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 SAE-AISI 1345 steel and the bottom bar is EN 1.4122 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 23
14
Fatigue Strength, MPa 230 to 390
260 to 360
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 370 to 440
480 to 520
Tensile Strength: Ultimate (UTS), MPa 590 to 730
790 to 850
Tensile Strength: Yield (Proof), MPa 330 to 620
450 to 630

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
870
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
9.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.4
Embodied Energy, MJ/kg 19
33
Embodied Water, L/kg 48
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 120
93 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 1040
520 to 1000
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 26
28 to 31
Strength to Weight: Bending, points 20 to 23
25 to 26
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 19 to 23
28 to 30

Alloy Composition

Carbon (C), % 0.43 to 0.48
0.33 to 0.45
Chromium (Cr), % 0
15.5 to 17.5
Iron (Fe), % 97.2 to 97.8
77.2 to 83.4
Manganese (Mn), % 1.6 to 1.9
0 to 1.5
Molybdenum (Mo), % 0
0.8 to 1.3
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015

Comparable Variants