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SAE-AISI 1025 Steel vs. SAE-AISI 1015 Steel

Both SAE-AISI 1025 steel and SAE-AISI 1015 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is SAE-AISI 1025 steel and the bottom bar is SAE-AISI 1015 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 140
120
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 28
20 to 32
Fatigue Strength, MPa 190 to 280
170 to 250
Poisson's Ratio 0.29
0.29
Reduction in Area, % 45 to 57
46 to 56
Shear Modulus, GPa 73
73
Shear Strength, MPa 290 to 310
260 to 270
Tensile Strength: Ultimate (UTS), MPa 450 to 500
390 to 440
Tensile Strength: Yield (Proof), MPa 250 to 420
210 to 370

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
52
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
7.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
18
Embodied Water, L/kg 45
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80 to 110
83 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 470
120 to 360
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 18
14 to 15
Strength to Weight: Bending, points 17 to 18
15 to 16
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 14 to 16
12 to 14

Alloy Composition

Carbon (C), % 0.22 to 0.28
0.13 to 0.18
Iron (Fe), % 99.03 to 99.48
99.13 to 99.57
Manganese (Mn), % 0.3 to 0.6
0.3 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.040
Sulfur (S), % 0 to 0.050
0 to 0.050

Comparable Variants