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EN 1.4509 Stainless Steel vs. EN 1.7365 Steel

Both EN 1.4509 stainless steel and EN 1.7365 steel are iron alloys. They have 86% 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 1.4509 stainless steel and the bottom bar is EN 1.7365 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 21
18
Fatigue Strength, MPa 170
320
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 530
700
Tensile Strength: Yield (Proof), MPa 260
470

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 890
510
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
40
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
4.4
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.8
Embodied Energy, MJ/kg 41
24
Embodied Water, L/kg 120
70

Common Calculations

PREN (Pitting Resistance) 18
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
110
Resilience: Unit (Modulus of Resilience), kJ/m3 180
580
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
25
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 6.8
11
Thermal Shock Resistance, points 19
20

Alloy Composition

Carbon (C), % 0 to 0.030
0.12 to 0.19
Chromium (Cr), % 17.5 to 18.5
4.0 to 6.0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 77.8 to 82.1
91.2 to 94.9
Manganese (Mn), % 0 to 1.0
0.5 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.65
Niobium (Nb), % 0.3 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.025
Titanium (Ti), % 0.1 to 0.6
0
Vanadium (V), % 0
0 to 0.050