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EN 1.4318 Stainless Steel vs. EN 1.7365 Steel

Both EN 1.4318 stainless steel and EN 1.7365 steel are iron alloys. They have 80% 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 1.4318 stainless steel and the bottom bar is EN 1.7365 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 44
18
Fatigue Strength, MPa 340
320
Impact Strength: V-Notched Charpy, J 85
31
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 740
700
Tensile Strength: Yield (Proof), MPa 380
470

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 910
510
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
4.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.8
Embodied Energy, MJ/kg 39
24
Embodied Water, L/kg 130
70

Common Calculations

PREN (Pitting Resistance) 20
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
110
Resilience: Unit (Modulus of Resilience), kJ/m3 360
580
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
25
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 17
20

Alloy Composition

Carbon (C), % 0 to 0.030
0.12 to 0.19
Chromium (Cr), % 16.5 to 18.5
4.0 to 6.0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 70.2 to 77.4
91.2 to 94.9
Manganese (Mn), % 0 to 2.0
0.5 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.65
Nickel (Ni), % 6.0 to 8.0
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.025
Vanadium (V), % 0
0 to 0.050