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SAE-AISI 1146 Steel vs. EN 1.4034 Stainless Steel

Both SAE-AISI 1146 steel and EN 1.4034 stainless steel are iron alloys. They have 86% of their average alloy composition in common. 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 SAE-AISI 1146 steel and the bottom bar is EN 1.4034 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13 to 17
11 to 14
Fatigue Strength, MPa 240 to 400
230 to 400
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Shear Strength, MPa 410 to 440
420 to 540
Tensile Strength: Ultimate (UTS), MPa 670 to 730
690 to 900
Tensile Strength: Yield (Proof), MPa 360 to 630
390 to 730

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
770
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
30
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
3.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.0
Embodied Energy, MJ/kg 18
27
Embodied Water, L/kg 46
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93 to 97
81 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 340 to 1050
400 to 1370
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 26
25 to 32
Strength to Weight: Bending, points 22 to 23
22 to 27
Thermal Diffusivity, mm2/s 14
8.1
Thermal Shock Resistance, points 20 to 22
24 to 32

Alloy Composition

Carbon (C), % 0.42 to 0.49
0.43 to 0.5
Chromium (Cr), % 0
12.5 to 14.5
Iron (Fe), % 98.3 to 98.8
83 to 87.1
Manganese (Mn), % 0.7 to 1.0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0.080 to 0.13
0 to 0.015