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EN 1.4557 Stainless Steel vs. EN 1.4922 Stainless Steel

Both EN 1.4557 stainless steel and EN 1.4922 stainless steel are iron alloys. They have 67% 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 1.4557 stainless steel and the bottom bar is EN 1.4922 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
16
Fatigue Strength, MPa 260
330
Impact Strength: V-Notched Charpy, J 56
38
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 560
770
Tensile Strength: Yield (Proof), MPa 300
550

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 420
380
Maximum Temperature: Mechanical, °C 1090
720
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 15
24
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 29
7.5
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.6
2.8
Embodied Energy, MJ/kg 76
40
Embodied Water, L/kg 190
100

Common Calculations

PREN (Pitting Resistance) 45
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
110
Resilience: Unit (Modulus of Resilience), kJ/m3 210
770
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
27
Strength to Weight: Bending, points 19
24
Thermal Diffusivity, mm2/s 4.0
6.5
Thermal Shock Resistance, points 12
27

Alloy Composition

Carbon (C), % 0 to 0.020
0.17 to 0.23
Chromium (Cr), % 19.5 to 20.5
10 to 12.5
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 49.5 to 56.3
83.5 to 88.2
Manganese (Mn), % 0 to 1.2
0.3 to 1.0
Molybdenum (Mo), % 6.0 to 7.0
0.8 to 1.2
Nickel (Ni), % 17.5 to 19.5
0.3 to 0.8
Nitrogen (N), % 0.18 to 0.24
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.015
Vanadium (V), % 0
0.2 to 0.35