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SAE-AISI 5135 Steel vs. S44627 Stainless Steel

Both SAE-AISI 5135 steel and S44627 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 73% of their average alloy composition in common. There are 31 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 5135 steel and the bottom bar is S44627 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
24
Fatigue Strength, MPa 240
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
80
Shear Strength, MPa 320
310
Tensile Strength: Ultimate (UTS), MPa 510
490
Tensile Strength: Yield (Proof), MPa 340
300

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
1100
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
17
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
14
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.9
Embodied Energy, MJ/kg 19
41
Embodied Water, L/kg 50
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
100
Resilience: Unit (Modulus of Resilience), kJ/m3 300
220
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18
18
Strength to Weight: Bending, points 18
18
Thermal Diffusivity, mm2/s 12
4.6
Thermal Shock Resistance, points 16
16

Alloy Composition

Carbon (C), % 0.33 to 0.38
0 to 0.010
Chromium (Cr), % 0.8 to 1.1
25 to 27.5
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 97.3 to 98.1
69.2 to 74.2
Manganese (Mn), % 0.6 to 0.8
0 to 0.4
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.050 to 0.2
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0.15 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.020