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SAE-AISI 1141 Steel vs. AISI 442 Stainless Steel

Both SAE-AISI 1141 steel and AISI 442 stainless steel are iron alloys. They have 79% 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 1141 steel and the bottom bar is AISI 442 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 220
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 17
23
Fatigue Strength, MPa 270 to 430
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
78
Shear Strength, MPa 460 to 480
370
Tensile Strength: Ultimate (UTS), MPa 740 to 810
580
Tensile Strength: Yield (Proof), MPa 400 to 700
310

Thermal Properties

Latent Heat of Fusion, J/g 250
290
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
22
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 12
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
10
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.3
Embodied Energy, MJ/kg 19
32
Embodied Water, L/kg 47
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 430 to 1290
250
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26 to 29
21
Strength to Weight: Bending, points 23 to 25
20
Thermal Diffusivity, mm2/s 14
5.8
Thermal Shock Resistance, points 24 to 26
20

Alloy Composition

Carbon (C), % 0.37 to 0.45
0 to 0.2
Chromium (Cr), % 0
18 to 23
Iron (Fe), % 97.7 to 98.2
74.1 to 82
Manganese (Mn), % 1.4 to 1.7
0 to 1.0
Nickel (Ni), % 0
0 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0.080 to 0.13
0 to 0.040