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EN 1.4594 Stainless Steel vs. SAE-AISI 1345 Steel

Both EN 1.4594 stainless steel and SAE-AISI 1345 steel are iron alloys. They have 77% 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 EN 1.4594 stainless steel and the bottom bar is SAE-AISI 1345 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11 to 17
11 to 23
Fatigue Strength, MPa 490 to 620
230 to 390
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Shear Strength, MPa 620 to 700
370 to 440
Tensile Strength: Ultimate (UTS), MPa 1020 to 1170
590 to 730
Tensile Strength: Yield (Proof), MPa 810 to 1140
330 to 620

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 820
400
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
51
Thermal Expansion, µm/m-K 11
12

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 15
1.9
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.2
1.4
Embodied Energy, MJ/kg 45
19
Embodied Water, L/kg 130
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
78 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 1660 to 3320
290 to 1040
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 36 to 41
21 to 26
Strength to Weight: Bending, points 29 to 31
20 to 23
Thermal Diffusivity, mm2/s 4.4
14
Thermal Shock Resistance, points 34 to 39
19 to 23

Alloy Composition

Carbon (C), % 0 to 0.070
0.43 to 0.48
Chromium (Cr), % 13 to 15
0
Copper (Cu), % 1.2 to 2.0
0
Iron (Fe), % 72.6 to 79.5
97.2 to 97.8
Manganese (Mn), % 0 to 1.0
1.6 to 1.9
Molybdenum (Mo), % 1.2 to 2.0
0
Nickel (Ni), % 5.0 to 6.0
0
Niobium (Nb), % 0.15 to 0.6
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 0.7
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040