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Cold Drawn SAE-AISI 1141 vs. Cold Rolled EN 1.4424

Both cold drawn SAE-AISI 1141 and cold rolled EN 1.4424 are iron alloys. Both are furnished in the cold worked (strain hardened) condition. They have 72% 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 cold drawn SAE-AISI 1141 and the bottom bar is cold rolled EN 1.4424.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
230
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
28
Fatigue Strength, MPa 430
370
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
78
Shear Strength, MPa 480
520
Tensile Strength: Ultimate (UTS), MPa 810
800
Tensile Strength: Yield (Proof), MPa 700
500

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
960
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
13
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
15
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
3.4
Embodied Energy, MJ/kg 19
46
Embodied Water, L/kg 47
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
200
Resilience: Unit (Modulus of Resilience), kJ/m3 1290
640
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
29
Strength to Weight: Bending, points 25
25
Thermal Diffusivity, mm2/s 14
3.5
Thermal Shock Resistance, points 26
23

Alloy Composition

Carbon (C), % 0.37 to 0.45
0 to 0.030
Chromium (Cr), % 0
18 to 19
Iron (Fe), % 97.7 to 98.2
68.6 to 72.4
Manganese (Mn), % 1.4 to 1.7
1.2 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0
4.5 to 5.2
Nitrogen (N), % 0
0.050 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0
1.4 to 2.0
Sulfur (S), % 0.080 to 0.13
0 to 0.015