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EN 1.3551 Steel vs. EN 1.4736 Stainless Steel

Both EN 1.3551 steel and EN 1.4736 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 26 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 1.3551 steel and the bottom bar is EN 1.4736 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 720
580

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 530
1000
Melting Completion (Liquidus), °C 1490
1420
Melting Onset (Solidus), °C 1450
1380
Specific Heat Capacity, J/kg-K 460
490
Thermal Conductivity, W/m-K 36
21
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.6
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 9.9
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
9.0
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 4.9
2.4
Embodied Energy, MJ/kg 71
35
Embodied Water, L/kg 82
140

Common Calculations

PREN (Pitting Resistance) 18
18
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
21
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 9.8
5.6
Thermal Shock Resistance, points 21
21

Alloy Composition

Aluminum (Al), % 0
1.7 to 2.1
Carbon (C), % 0.77 to 0.85
0 to 0.040
Chromium (Cr), % 3.9 to 4.3
17 to 18
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 88.8 to 91.1
77 to 81.1
Manganese (Mn), % 0.15 to 0.35
0 to 1.0
Molybdenum (Mo), % 4.0 to 4.5
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
0.2 to 0.8
Tungsten (W), % 0 to 0.25
0
Vanadium (V), % 0.9 to 1.1
0