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S33550 Stainless Steel vs. EN 1.4749 Stainless Steel

Both S33550 stainless steel and EN 1.4749 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 81% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is S33550 stainless steel and the bottom bar is EN 1.4749 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
16
Fatigue Strength, MPa 270
190
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
80
Shear Strength, MPa 470
370
Tensile Strength: Ultimate (UTS), MPa 680
600
Tensile Strength: Yield (Proof), MPa 310
320

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 470
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1400
1420
Melting Onset (Solidus), °C 1360
1380
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 16
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 24
13
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 4.3
2.5
Embodied Energy, MJ/kg 61
36
Embodied Water, L/kg 190
160

Common Calculations

PREN (Pitting Resistance) 30
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
80
Resilience: Unit (Modulus of Resilience), kJ/m3 250
250
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 24
22
Strength to Weight: Bending, points 22
21
Thermal Diffusivity, mm2/s 3.9
4.6
Thermal Shock Resistance, points 15
22

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.15 to 0.2
Cerium (Ce), % 0.025 to 0.070
0
Chromium (Cr), % 25 to 28
26 to 29
Iron (Fe), % 48.8 to 58.2
68.5 to 73.7
Lanthanum (La), % 0.025 to 0.070
0
Manganese (Mn), % 0 to 1.5
0 to 1.0
Nickel (Ni), % 16.5 to 20
0
Niobium (Nb), % 0.050 to 0.15
0
Nitrogen (N), % 0.18 to 0.25
0.15 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015