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EN 1.4104 Stainless Steel vs. EN 1.4557 Stainless Steel

Both EN 1.4104 stainless steel and EN 1.4557 stainless 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 1.4104 stainless steel and the bottom bar is EN 1.4557 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11 to 23
40
Fatigue Strength, MPa 230 to 310
260
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 630 to 750
560
Tensile Strength: Yield (Proof), MPa 350 to 560
300

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 860
1090
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 25
15
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
29
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.2
5.6
Embodied Energy, MJ/kg 30
76
Embodied Water, L/kg 120
190

Common Calculations

PREN (Pitting Resistance) 18
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 120
190
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 800
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23 to 27
19
Strength to Weight: Bending, points 21 to 24
19
Thermal Diffusivity, mm2/s 6.7
4.0
Thermal Shock Resistance, points 22 to 27
12

Alloy Composition

Carbon (C), % 0.1 to 0.17
0 to 0.020
Chromium (Cr), % 15.5 to 17.5
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 78.8 to 84.1
49.5 to 56.3
Manganese (Mn), % 0 to 1.5
0 to 1.2
Molybdenum (Mo), % 0.2 to 0.6
6.0 to 7.0
Nickel (Ni), % 0
17.5 to 19.5
Nitrogen (N), % 0
0.18 to 0.24
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0.15 to 0.35
0 to 0.010