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EN 1.4988 Stainless Steel vs. EN 1.5510 Steel

Both EN 1.4988 stainless steel and EN 1.5510 steel are iron alloys. They have 67% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4988 stainless steel and the bottom bar is EN 1.5510 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
130 to 190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
11 to 21
Fatigue Strength, MPa 230
220 to 330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 430
310 to 380
Tensile Strength: Ultimate (UTS), MPa 640
450 to 1600
Tensile Strength: Yield (Proof), MPa 290
310 to 520

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 920
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 23
1.9
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 6.0
1.4
Embodied Energy, MJ/kg 89
19
Embodied Water, L/kg 150
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
46 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 210
260 to 710
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23
16 to 57
Strength to Weight: Bending, points 21
17 to 39
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 14
13 to 47

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0.040 to 0.1
0.25 to 0.3
Chromium (Cr), % 15.5 to 17.5
0 to 0.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 62.1 to 69.5
97.9 to 99.149
Manganese (Mn), % 0 to 1.5
0.6 to 0.9
Molybdenum (Mo), % 1.1 to 1.5
0
Nickel (Ni), % 12.5 to 14.5
0
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.3 to 0.6
0 to 0.3
Sulfur (S), % 0 to 0.015
0 to 0.025
Vanadium (V), % 0.6 to 0.85
0