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EN 1.4451 Stainless Steel vs. SAE-AISI 5135 Steel

Both EN 1.4451 stainless steel and SAE-AISI 5135 steel are iron alloys. They have 62% 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 1.4451 stainless steel and the bottom bar is SAE-AISI 5135 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 25
22
Fatigue Strength, MPa 370
240
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 750
510
Tensile Strength: Yield (Proof), MPa 540
340

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
45
Thermal Expansion, µm/m-K 17
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 20
2.2
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.8
1.4
Embodied Energy, MJ/kg 53
19
Embodied Water, L/kg 190
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
100
Resilience: Unit (Modulus of Resilience), kJ/m3 710
300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
18
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 4.5
12
Thermal Shock Resistance, points 16
16

Alloy Composition

Carbon (C), % 0 to 0.030
0.33 to 0.38
Chromium (Cr), % 25 to 27
0.8 to 1.1
Copper (Cu), % 2.8 to 3.5
0
Iron (Fe), % 56.2 to 64.6
97.3 to 98.1
Manganese (Mn), % 0 to 1.5
0.6 to 0.8
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 5.0 to 7.0
0
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.040