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SAE-AISI 1548 Steel vs. EN 1.4311 Stainless Steel

Both SAE-AISI 1548 steel and EN 1.4311 stainless steel are iron alloys. They have 71% 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 1548 steel and the bottom bar is EN 1.4311 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
200
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 16
43
Fatigue Strength, MPa 270 to 430
270
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 440 to 500
450
Tensile Strength: Ultimate (UTS), MPa 730 to 830
650
Tensile Strength: Yield (Proof), MPa 420 to 690
310

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
950
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.1
Embodied Energy, MJ/kg 19
43
Embodied Water, L/kg 47
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 99
230
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 1280
240
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26 to 30
23
Strength to Weight: Bending, points 23 to 25
21
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 23 to 27
15

Alloy Composition

Carbon (C), % 0.44 to 0.52
0 to 0.030
Chromium (Cr), % 0
17.5 to 19.5
Iron (Fe), % 98 to 98.5
65.7 to 73.9
Manganese (Mn), % 1.1 to 1.4
0 to 2.0
Nickel (Ni), % 0
8.5 to 11.5
Nitrogen (N), % 0
0.12 to 0.22
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.015