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EN 1.4547 Stainless Steel vs. AISI 442 Stainless Steel

Both EN 1.4547 stainless steel and AISI 442 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 33 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 1.4547 stainless steel and the bottom bar is AISI 442 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
23
Fatigue Strength, MPa 290
210
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 80
78
Shear Strength, MPa 510
370
Tensile Strength: Ultimate (UTS), MPa 750
580
Tensile Strength: Yield (Proof), MPa 340
310

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 1090
960
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 14
22
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 28
10
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 5.6
2.3
Embodied Energy, MJ/kg 75
32
Embodied Water, L/kg 190
130

Common Calculations

PREN (Pitting Resistance) 45
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
110
Resilience: Unit (Modulus of Resilience), kJ/m3 290
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
21
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 3.8
5.8
Thermal Shock Resistance, points 16
20

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.2
Chromium (Cr), % 19.5 to 20.5
18 to 23
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 51 to 56.3
74.1 to 82
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 17.5 to 18.5
0 to 0.6
Nitrogen (N), % 0.18 to 0.25
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.040