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AISI 348 Stainless Steel vs. EN 1.8550 Steel

Both AISI 348 stainless steel and EN 1.8550 steel are iron alloys. They have 72% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 348 stainless steel and the bottom bar is EN 1.8550 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
300
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 41
11
Fatigue Strength, MPa 200
470
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 400
600
Tensile Strength: Ultimate (UTS), MPa 580
1000
Tensile Strength: Yield (Proof), MPa 230
760

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
440
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
40
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 19
3.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.7
1.7
Embodied Energy, MJ/kg 54
23
Embodied Water, L/kg 150
67

Common Calculations

PREN (Pitting Resistance) 18
2.3
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
100
Resilience: Unit (Modulus of Resilience), kJ/m3 140
1550
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
36
Strength to Weight: Bending, points 20
29
Thermal Diffusivity, mm2/s 4.2
11
Thermal Shock Resistance, points 13
29

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0 to 0.080
0.3 to 0.37
Chromium (Cr), % 17 to 19
1.5 to 1.8
Cobalt (Co), % 0 to 0.2
0
Iron (Fe), % 63.8 to 74
94.4 to 96.3
Manganese (Mn), % 0 to 2.0
0.4 to 0.7
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 9.0 to 13
0.85 to 1.2
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 0.75
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035
Tantalum (Ta), % 0 to 0.1
0