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EN 1.4057 Stainless Steel vs. EN 1.4557 Stainless Steel

Both EN 1.4057 stainless steel and EN 1.4557 stainless 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 (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4057 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 17
40
Fatigue Strength, MPa 320 to 430
260
Impact Strength: V-Notched Charpy, J 16 to 21
56
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 840 to 980
560
Tensile Strength: Yield (Proof), MPa 530 to 790
300

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 400
420
Maximum Temperature: Mechanical, °C 850
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 9.5
29
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.2
5.6
Embodied Energy, MJ/kg 32
76
Embodied Water, L/kg 120
190

Common Calculations

PREN (Pitting Resistance) 16
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 130
190
Resilience: Unit (Modulus of Resilience), kJ/m3 700 to 1610
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30 to 35
19
Strength to Weight: Bending, points 26 to 28
19
Thermal Diffusivity, mm2/s 6.7
4.0
Thermal Shock Resistance, points 30 to 35
12

Alloy Composition

Carbon (C), % 0.12 to 0.22
0 to 0.020
Chromium (Cr), % 15 to 17
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 77.7 to 83.4
49.5 to 56.3
Manganese (Mn), % 0 to 1.5
0 to 1.2
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 1.5 to 2.5
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 to 0.015
0 to 0.010