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EN 1.4986 Stainless Steel vs. EN 1.3551 Steel

Both EN 1.4986 stainless steel and EN 1.3551 steel are iron alloys. They have 69% 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 1.4986 stainless steel and the bottom bar is EN 1.3551 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 750
720

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 940
530
Melting Completion (Liquidus), °C 1450
1490
Melting Onset (Solidus), °C 1400
1450
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 15
36
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
8.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 25
9.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.8
4.9
Embodied Energy, MJ/kg 67
71
Embodied Water, L/kg 150
82

Common Calculations

PREN (Pitting Resistance) 22
18
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
26
Strength to Weight: Bending, points 23
23
Thermal Diffusivity, mm2/s 4.0
9.8
Thermal Shock Resistance, points 16
21

Alloy Composition

Boron (B), % 0.050 to 0.1
0
Carbon (C), % 0.040 to 0.1
0.77 to 0.85
Chromium (Cr), % 15.5 to 17.5
3.9 to 4.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 59.4 to 66.6
88.8 to 91.1
Manganese (Mn), % 0 to 1.5
0.15 to 0.35
Molybdenum (Mo), % 1.6 to 2.0
4.0 to 4.5
Nickel (Ni), % 15.5 to 17.5
0
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0.3 to 0.6
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 0
0 to 0.25
Vanadium (V), % 0
0.9 to 1.1