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SAE-AISI 1141 Steel vs. EN 1.4849 Stainless Steel

Both SAE-AISI 1141 steel and EN 1.4849 stainless steel are iron alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1141 steel and the bottom bar is EN 1.4849 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 220
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
4.5
Fatigue Strength, MPa 270 to 430
120
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
75
Tensile Strength: Ultimate (UTS), MPa 740 to 810
480
Tensile Strength: Yield (Proof), MPa 400 to 700
250

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 400
1020
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
12
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
42
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.4
7.1
Embodied Energy, MJ/kg 19
100
Embodied Water, L/kg 47
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 110
18
Resilience: Unit (Modulus of Resilience), kJ/m3 430 to 1290
160
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26 to 29
17
Strength to Weight: Bending, points 23 to 25
17
Thermal Diffusivity, mm2/s 14
3.2
Thermal Shock Resistance, points 24 to 26
11

Alloy Composition

Carbon (C), % 0.37 to 0.45
0.3 to 0.5
Chromium (Cr), % 0
18 to 21
Iron (Fe), % 97.7 to 98.2
32.6 to 43.5
Manganese (Mn), % 1.4 to 1.7
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
36 to 39
Niobium (Nb), % 0
1.2 to 1.8
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
1.0 to 2.5
Sulfur (S), % 0.080 to 0.13
0 to 0.030