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EN 1.4550 Stainless Steel vs. SAE-AISI 5130 Steel

Both EN 1.4550 stainless steel and SAE-AISI 5130 steel are iron alloys. They have 72% 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 1.4550 stainless steel and the bottom bar is SAE-AISI 5130 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
150 to 190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 42
12 to 22
Fatigue Strength, MPa 210
230 to 330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 430
310 to 390
Tensile Strength: Ultimate (UTS), MPa 620
500 to 640
Tensile Strength: Yield (Proof), MPa 230
330 to 530

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
420
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
45
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 18
2.2
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.6
1.4
Embodied Energy, MJ/kg 51
19
Embodied Water, L/kg 140
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
74 to 98
Resilience: Unit (Modulus of Resilience), kJ/m3 140
290 to 750
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
18 to 23
Strength to Weight: Bending, points 21
18 to 21
Thermal Diffusivity, mm2/s 4.0
12
Thermal Shock Resistance, points 14
16 to 20

Alloy Composition

Carbon (C), % 0 to 0.080
0.28 to 0.33
Chromium (Cr), % 17 to 19
0.8 to 1.1
Iron (Fe), % 64.9 to 74
97.2 to 98.1
Manganese (Mn), % 0 to 2.0
0.7 to 0.9
Nickel (Ni), % 9.0 to 12
0
Niobium (Nb), % 0 to 1.0
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