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EN 1.4525 Stainless Steel vs. EN 1.3551 Steel

Both EN 1.4525 stainless steel and EN 1.3551 steel are iron alloys. They have 80% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4525 stainless steel and the bottom bar is EN 1.3551 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 1030 to 1250
720

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 860
530
Melting Completion (Liquidus), °C 1430
1490
Melting Onset (Solidus), °C 1390
1450
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 18
36
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
8.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.8
4.9
Embodied Energy, MJ/kg 39
71
Embodied Water, L/kg 130
82

Common Calculations

PREN (Pitting Resistance) 18
18
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 36 to 45
26
Strength to Weight: Bending, points 29 to 33
23
Thermal Diffusivity, mm2/s 4.7
9.8
Thermal Shock Resistance, points 34 to 41
21

Alloy Composition

Carbon (C), % 0 to 0.070
0.77 to 0.85
Chromium (Cr), % 15 to 17
3.9 to 4.3
Copper (Cu), % 2.5 to 4.0
0 to 0.3
Iron (Fe), % 70.4 to 79
88.8 to 91.1
Manganese (Mn), % 0 to 1.0
0.15 to 0.35
Molybdenum (Mo), % 0 to 0.8
4.0 to 4.5
Nickel (Ni), % 3.5 to 5.5
0
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.8
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.015
Tungsten (W), % 0
0 to 0.25
Vanadium (V), % 0
0.9 to 1.1