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EN 1.4107 Stainless Steel vs. EN 1.4581 Stainless Steel

Both EN 1.4107 stainless steel and EN 1.4581 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4107 stainless steel and the bottom bar is EN 1.4581 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18 to 21
28
Fatigue Strength, MPa 260 to 350
150
Impact Strength: V-Notched Charpy, J 45 to 50
45
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 620 to 700
510
Tensile Strength: Yield (Proof), MPa 400 to 570
210

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 390
490
Maximum Temperature: Mechanical, °C 740
990
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
21
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
4.2
Embodied Energy, MJ/kg 30
59
Embodied Water, L/kg 100
160

Common Calculations

PREN (Pitting Resistance) 13
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 420 to 840
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22 to 25
18
Strength to Weight: Bending, points 21 to 22
18
Thermal Diffusivity, mm2/s 7.2
3.9
Thermal Shock Resistance, points 22 to 25
12

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.070
Chromium (Cr), % 11.5 to 12.5
18 to 20
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 83.8 to 87.2
61.4 to 71
Manganese (Mn), % 0.5 to 0.8
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
2.0 to 2.5
Nickel (Ni), % 0.8 to 1.5
9.0 to 12
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.5
Sulfur (S), % 0 to 0.020
0 to 0.030
Vanadium (V), % 0 to 0.080
0