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SAE-AISI 1095 Steel vs. S15500 Stainless Steel

Both SAE-AISI 1095 steel and S15500 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 32 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 1095 steel and the bottom bar is S15500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 270
290 to 430
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 10 to 11
6.8 to 16
Fatigue Strength, MPa 310 to 370
350 to 650
Poisson's Ratio 0.29
0.28
Reduction in Area, % 28 to 45
17 to 40
Shear Modulus, GPa 72
75
Shear Strength, MPa 400 to 540
540 to 870
Tensile Strength: Ultimate (UTS), MPa 680 to 900
890 to 1490
Tensile Strength: Yield (Proof), MPa 500 to 590
590 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 240
280
Maximum Temperature: Mechanical, °C 400
820
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 47
17
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.6
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 11
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.7
Embodied Energy, MJ/kg 19
39
Embodied Water, L/kg 45
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63 to 84
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 660 to 930
890 to 4460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 32
32 to 53
Strength to Weight: Bending, points 22 to 26
26 to 37
Thermal Diffusivity, mm2/s 13
4.6
Thermal Shock Resistance, points 22 to 29
30 to 50

Alloy Composition

Carbon (C), % 0.9 to 1.0
0 to 0.070
Chromium (Cr), % 0
14 to 15.5
Copper (Cu), % 0
2.5 to 4.5
Iron (Fe), % 98.4 to 98.8
71.9 to 79.9
Manganese (Mn), % 0.3 to 0.5
0 to 1.0
Nickel (Ni), % 0
3.5 to 5.5
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.030