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EN 1.4509 Stainless Steel vs. EN 1.0303 Steel

Both EN 1.4509 stainless steel and EN 1.0303 steel are iron alloys. They have 80% 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 1.0303 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
84 to 120
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 21
12 to 25
Fatigue Strength, MPa 170
150 to 230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 330
220 to 260
Tensile Strength: Ultimate (UTS), MPa 530
290 to 410
Tensile Strength: Yield (Proof), MPa 260
200 to 320

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 890
400
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
53
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
7.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
1.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.8
1.4
Embodied Energy, MJ/kg 41
18
Embodied Water, L/kg 120
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
30 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 180
110 to 270
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
10 to 15
Strength to Weight: Bending, points 19
12 to 16
Thermal Diffusivity, mm2/s 6.8
14
Thermal Shock Resistance, points 19
9.2 to 13

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.060
Carbon (C), % 0 to 0.030
0.020 to 0.060
Chromium (Cr), % 17.5 to 18.5
0
Iron (Fe), % 77.8 to 82.1
99.335 to 99.71
Manganese (Mn), % 0 to 1.0
0.25 to 0.4
Niobium (Nb), % 0.3 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.015
0 to 0.025
Titanium (Ti), % 0.1 to 0.6
0