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SAE-AISI 1025 Steel vs. EN 1.4988 Stainless Steel

Both SAE-AISI 1025 steel and EN 1.4988 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 31 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 SAE-AISI 1025 steel and the bottom bar is EN 1.4988 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 140
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17 to 28
34
Fatigue Strength, MPa 190 to 280
230
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 290 to 310
430
Tensile Strength: Ultimate (UTS), MPa 450 to 500
640
Tensile Strength: Yield (Proof), MPa 250 to 420
290

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
920
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
23
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
6.0
Embodied Energy, MJ/kg 18
89
Embodied Water, L/kg 45
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80 to 110
180
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 470
210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16 to 18
23
Strength to Weight: Bending, points 17 to 18
21
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 14 to 16
14

Alloy Composition

Carbon (C), % 0.22 to 0.28
0.040 to 0.1
Chromium (Cr), % 0
15.5 to 17.5
Iron (Fe), % 99.03 to 99.48
62.1 to 69.5
Manganese (Mn), % 0.3 to 0.6
0 to 1.5
Molybdenum (Mo), % 0
1.1 to 1.5
Nickel (Ni), % 0
12.5 to 14.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0
0.060 to 0.14
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0
0.3 to 0.6
Sulfur (S), % 0 to 0.050
0 to 0.015
Vanadium (V), % 0
0.6 to 0.85