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EN 1.4034 Stainless Steel vs. SAE-AISI 8115 Steel

Both EN 1.4034 stainless steel and SAE-AISI 8115 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 (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4034 stainless steel and the bottom bar is SAE-AISI 8115 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 14
15
Fatigue Strength, MPa 230 to 400
320
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 420 to 540
370
Tensile Strength: Ultimate (UTS), MPa 690 to 900
610
Tensile Strength: Yield (Proof), MPa 390 to 730
500

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 770
410
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
43
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
2.3
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.5
Embodied Energy, MJ/kg 27
19
Embodied Water, L/kg 100
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 94
86
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 1370
660
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25 to 32
21
Strength to Weight: Bending, points 22 to 27
20
Thermal Diffusivity, mm2/s 8.1
12
Thermal Shock Resistance, points 24 to 32
19

Alloy Composition

Carbon (C), % 0.43 to 0.5
0.13 to 0.18
Chromium (Cr), % 12.5 to 14.5
0.3 to 0.5
Iron (Fe), % 83 to 87.1
97.4 to 98.4
Manganese (Mn), % 0 to 1.0
0.7 to 0.9
Molybdenum (Mo), % 0
0.080 to 0.15
Nickel (Ni), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040