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EN 1.4618 Stainless Steel vs. S44635 Stainless Steel

Both EN 1.4618 stainless steel and S44635 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4618 stainless steel and the bottom bar is S44635 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
240
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 51
23
Fatigue Strength, MPa 240 to 250
390
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
81
Shear Strength, MPa 480 to 500
450
Tensile Strength: Ultimate (UTS), MPa 680 to 700
710
Tensile Strength: Yield (Proof), MPa 250 to 260
580

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 410
610
Maximum Temperature: Mechanical, °C 900
1100
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 13
22
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.7
4.4
Embodied Energy, MJ/kg 39
62
Embodied Water, L/kg 150
170

Common Calculations

PREN (Pitting Resistance) 19
39
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 280
150
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 170
810
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 25
25
Strength to Weight: Bending, points 22 to 23
23
Thermal Diffusivity, mm2/s 4.0
4.4
Thermal Shock Resistance, points 15 to 16
23

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.025
Chromium (Cr), % 16.5 to 18.5
24.5 to 26
Copper (Cu), % 1.0 to 2.5
0
Iron (Fe), % 62.7 to 72.5
61.5 to 68.5
Manganese (Mn), % 5.5 to 9.5
0 to 1.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 4.5 to 5.5
3.5 to 4.5
Niobium (Nb), % 0
0.2 to 0.8
Nitrogen (N), % 0 to 0.15
0 to 0.035
Phosphorus (P), % 0 to 0.070
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.8