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EN 1.4422 Stainless Steel vs. EN 1.7365 Steel

Both EN 1.4422 stainless steel and EN 1.7365 steel are iron alloys. Both are furnished in the quenched and tempered condition. They have 87% 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 1.4422 stainless steel and the bottom bar is EN 1.7365 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
18
Fatigue Strength, MPa 380
320
Impact Strength: V-Notched Charpy, J 110
31
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
74
Tensile Strength: Ultimate (UTS), MPa 850
700
Tensile Strength: Yield (Proof), MPa 630
470

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 760
510
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
40
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
4.4
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.8
Embodied Energy, MJ/kg 37
24
Embodied Water, L/kg 110
70

Common Calculations

PREN (Pitting Resistance) 17
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
580
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
25
Strength to Weight: Bending, points 25
22
Thermal Diffusivity, mm2/s 4.3
11
Thermal Shock Resistance, points 31
20

Alloy Composition

Carbon (C), % 0 to 0.020
0.12 to 0.19
Chromium (Cr), % 11 to 13
4.0 to 6.0
Copper (Cu), % 0.2 to 0.8
0 to 0.3
Iron (Fe), % 76.8 to 83.5
91.2 to 94.9
Manganese (Mn), % 0 to 2.0
0.5 to 0.8
Molybdenum (Mo), % 1.3 to 1.8
0.45 to 0.65
Nickel (Ni), % 4.0 to 5.0
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.8
Sulfur (S), % 0 to 0.0030
0 to 0.025
Vanadium (V), % 0
0 to 0.050