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EN 1.3558 Steel vs. AISI 304 Stainless Steel

Both EN 1.3558 steel and AISI 304 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.3558 steel and the bottom bar is AISI 304 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
170 to 360
Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 770
580 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 240
290
Maximum Temperature: Mechanical, °C 490
710
Melting Completion (Liquidus), °C 1810
1450
Melting Onset (Solidus), °C 1760
1400
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 20
16
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 45
15
Density, g/cm3 9.3
7.8
Embodied Carbon, kg CO2/kg material 8.4
3.0
Embodied Energy, MJ/kg 130
43
Embodied Water, L/kg 90
150

Common Calculations

PREN (Pitting Resistance) 35
20
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 23
21 to 42
Strength to Weight: Bending, points 20
20 to 32
Thermal Diffusivity, mm2/s 5.3
4.2
Thermal Shock Resistance, points 22
12 to 25

Alloy Composition

Carbon (C), % 0.7 to 0.8
0 to 0.080
Chromium (Cr), % 3.9 to 4.3
18 to 20
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 73.7 to 77.6
66.5 to 74
Manganese (Mn), % 0 to 0.4
0 to 2.0
Molybdenum (Mo), % 0 to 0.6
0
Nickel (Ni), % 0
8.0 to 10.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 1.0 to 1.3
0