MakeItFrom.com
Menu (ESC)

AISI 304LN Stainless Steel vs. SAE-AISI 1140 Steel

Both AISI 304LN stainless steel and SAE-AISI 1140 steel are iron alloys. They have 70% 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 AISI 304LN stainless steel and the bottom bar is SAE-AISI 1140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 350
170 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 7.8 to 46
14 to 18
Fatigue Strength, MPa 200 to 440
230 to 370
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Shear Strength, MPa 400 to 680
370 to 420
Tensile Strength: Ultimate (UTS), MPa 580 to 1160
600 to 700
Tensile Strength: Yield (Proof), MPa 230 to 870
340 to 570

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 960
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 16
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.4
Embodied Energy, MJ/kg 44
18
Embodied Water, L/kg 150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 270
89 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1900
310 to 870
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 41
21 to 25
Strength to Weight: Bending, points 20 to 31
20 to 22
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 13 to 26
18 to 21

Alloy Composition

Carbon (C), % 0 to 0.030
0.37 to 0.44
Chromium (Cr), % 18 to 20
0
Iron (Fe), % 65 to 73.9
98.4 to 98.9
Manganese (Mn), % 0 to 2.0
0.7 to 1.0
Nickel (Ni), % 8.0 to 12
0
Nitrogen (N), % 0.1 to 0.16
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0.080 to 0.13