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EN 1.4650 Stainless Steel vs. SAE-AISI 4130 Steel

Both EN 1.4650 stainless steel and SAE-AISI 4130 steel are iron alloys. They have 71% 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 1.4650 stainless steel and the bottom bar is SAE-AISI 4130 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
200 to 300
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 48
13 to 26
Fatigue Strength, MPa 230
320 to 660
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 440
340 to 640
Tensile Strength: Ultimate (UTS), MPa 620
530 to 1040
Tensile Strength: Yield (Proof), MPa 240
440 to 980

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 970
420
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
43
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 16
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.5
Embodied Energy, MJ/kg 43
20
Embodied Water, L/kg 150
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
83 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 150
500 to 2550
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
19 to 37
Strength to Weight: Bending, points 21
19 to 29
Thermal Diffusivity, mm2/s 4.1
12
Thermal Shock Resistance, points 14
16 to 31

Alloy Composition

Carbon (C), % 0 to 0.030
0.28 to 0.33
Chromium (Cr), % 18.5 to 20
0.8 to 1.1
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 65.8 to 72.5
97.3 to 98.2
Manganese (Mn), % 0 to 2.0
0.4 to 0.6
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 9.0 to 10
0
Nitrogen (N), % 0 to 0.080
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