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EN 1.4550 Stainless Steel vs. EN 1.4107 Stainless Steel

Both EN 1.4550 stainless steel and EN 1.4107 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, 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 EN 1.4107 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 42
18 to 21
Fatigue Strength, MPa 210
260 to 350
Impact Strength: V-Notched Charpy, J 90
45 to 50
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 620
620 to 700
Tensile Strength: Yield (Proof), MPa 230
400 to 570

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 480
390
Maximum Temperature: Mechanical, °C 940
740
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 15
27
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 18
7.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.6
2.1
Embodied Energy, MJ/kg 51
30
Embodied Water, L/kg 140
100

Common Calculations

PREN (Pitting Resistance) 18
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 140
420 to 840
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
22 to 25
Strength to Weight: Bending, points 21
21 to 22
Thermal Diffusivity, mm2/s 4.0
7.2
Thermal Shock Resistance, points 14
22 to 25

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.1
Chromium (Cr), % 17 to 19
11.5 to 12.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 64.9 to 74
83.8 to 87.2
Manganese (Mn), % 0 to 2.0
0.5 to 0.8
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 9.0 to 12
0.8 to 1.5
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.020
Vanadium (V), % 0
0 to 0.080