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EN 1.4446 Stainless Steel vs. EN 1.4542 Stainless Steel

Both EN 1.4446 stainless steel and EN 1.4542 stainless steel are iron alloys. They have 85% 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 1.4446 stainless steel and the bottom bar is EN 1.4542 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
5.7 to 20
Fatigue Strength, MPa 160
370 to 640
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 490
880 to 1470
Tensile Strength: Yield (Proof), MPa 240
580 to 1300

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 410
440
Maximum Temperature: Mechanical, °C 980
860
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
16
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 22
13
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.5
2.7
Embodied Energy, MJ/kg 60
39
Embodied Water, L/kg 160
130

Common Calculations

PREN (Pitting Resistance) 34
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
62 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 140
880 to 4360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
31 to 52
Strength to Weight: Bending, points 17
26 to 37
Thermal Diffusivity, mm2/s 3.6
4.3
Thermal Shock Resistance, points 11
29 to 49

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.070
Chromium (Cr), % 16.5 to 18.5
15 to 17
Copper (Cu), % 0
3.0 to 5.0
Iron (Fe), % 59.7 to 66.9
69.6 to 79
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 4.0 to 4.5
0 to 0.6
Nickel (Ni), % 12.5 to 14.5
3.0 to 5.0
Niobium (Nb), % 0
0 to 0.45
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.015