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EN 1.4557 Stainless Steel vs. S44800 Stainless Steel

Both EN 1.4557 stainless steel and S44800 stainless steel are iron alloys. They have 79% 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 EN 1.4557 stainless steel and the bottom bar is S44800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
190
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 40
23
Fatigue Strength, MPa 260
300
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 80
82
Tensile Strength: Ultimate (UTS), MPa 560
590
Tensile Strength: Yield (Proof), MPa 300
450

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 420
460
Maximum Temperature: Mechanical, °C 1090
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 29
19
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.6
3.8
Embodied Energy, MJ/kg 76
52
Embodied Water, L/kg 190
190

Common Calculations

PREN (Pitting Resistance) 45
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
120
Resilience: Unit (Modulus of Resilience), kJ/m3 210
480
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
21
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 4.0
4.6
Thermal Shock Resistance, points 12
19

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.010
Chromium (Cr), % 19.5 to 20.5
28 to 30
Copper (Cu), % 0.5 to 1.0
0 to 0.15
Iron (Fe), % 49.5 to 56.3
62.6 to 66.5
Manganese (Mn), % 0 to 1.2
0 to 0.3
Molybdenum (Mo), % 6.0 to 7.0
3.5 to 4.2
Nickel (Ni), % 17.5 to 19.5
2.0 to 2.5
Nitrogen (N), % 0.18 to 0.24
0 to 0.020
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.010
0 to 0.020