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EN 1.4411 Stainless Steel vs. EN 1.4640 Stainless Steel

Both EN 1.4411 stainless steel and EN 1.4640 stainless steel are iron alloys. They have a moderately high 92% 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 1.4411 stainless steel and the bottom bar is EN 1.4640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
51
Fatigue Strength, MPa 370
230 to 250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 870
620 to 650
Tensile Strength: Yield (Proof), MPa 600
240 to 260

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 880
930
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 13
14
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.0
2.8
Embodied Energy, MJ/kg 41
40
Embodied Water, L/kg 130
150

Common Calculations

PREN (Pitting Resistance) 22
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
250 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 920
150 to 170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31
22 to 23
Strength to Weight: Bending, points 26
21
Thermal Diffusivity, mm2/s 4.6
4.0
Thermal Shock Resistance, points 28
14 to 15

Alloy Composition

Carbon (C), % 0 to 0.060
0.030 to 0.080
Chromium (Cr), % 15 to 17
18 to 19
Copper (Cu), % 0
1.3 to 2.0
Iron (Fe), % 73.1 to 79.5
67.4 to 73.6
Manganese (Mn), % 0 to 1.0
1.5 to 4.0
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 4.0 to 6.0
5.5 to 6.9
Nitrogen (N), % 0
0.030 to 0.11
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.8
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.015