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EN 1.3555 Steel vs. EN 1.4309 Stainless Steel

Both EN 1.3555 steel and EN 1.4309 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.3555 steel and the bottom bar is EN 1.4309 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 770
490

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 540
960
Melting Completion (Liquidus), °C 1500
1420
Melting Onset (Solidus), °C 1450
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 11
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 11
16
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.6
3.1
Embodied Energy, MJ/kg 81
45
Embodied Water, L/kg 90
150

Common Calculations

PREN (Pitting Resistance) 18
21
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27
18
Strength to Weight: Bending, points 23
18
Thermal Shock Resistance, points 22
11

Alloy Composition

Carbon (C), % 0.1 to 0.15
0 to 0.030
Chromium (Cr), % 3.9 to 4.3
18 to 20
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 85.4 to 87.7
64.2 to 73
Manganese (Mn), % 0.15 to 0.35
0 to 2.0
Molybdenum (Mo), % 4.0 to 4.5
0
Nickel (Ni), % 3.2 to 3.6
9.0 to 12
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.015
0 to 0.035
Silicon (Si), % 0.1 to 0.25
0 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.025
Tungsten (W), % 0 to 0.15
0
Vanadium (V), % 1.0 to 1.3
0