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EN 1.4373 Stainless Steel vs. SAE-AISI 4130 Steel

Both EN 1.4373 stainless steel and SAE-AISI 4130 steel are iron alloys. They have 69% 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 EN 1.4373 stainless steel and the bottom bar is SAE-AISI 4130 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
200 to 300
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 46
13 to 26
Fatigue Strength, MPa 340
320 to 660
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 530
340 to 640
Tensile Strength: Ultimate (UTS), MPa 750
530 to 1040
Tensile Strength: Yield (Proof), MPa 370
440 to 980

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 910
420
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
43
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.4
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.5
Embodied Energy, MJ/kg 40
20
Embodied Water, L/kg 150
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
83 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 340
500 to 2550
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
19 to 37
Strength to Weight: Bending, points 24
19 to 29
Thermal Diffusivity, mm2/s 4.0
12
Thermal Shock Resistance, points 16
16 to 31

Alloy Composition

Carbon (C), % 0 to 0.15
0.28 to 0.33
Chromium (Cr), % 17 to 19
0.8 to 1.1
Iron (Fe), % 63 to 71.5
97.3 to 98.2
Manganese (Mn), % 7.5 to 10.5
0.4 to 0.6
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 4.0 to 6.0
0
Nitrogen (N), % 0.050 to 0.25
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040