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EN 1.4613 Stainless Steel vs. EN 1.4640 Stainless Steel

Both EN 1.4613 stainless steel and EN 1.4640 stainless steel are iron alloys. They have a moderately high 90% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4613 stainless steel and the bottom bar is EN 1.4640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190 to 200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 21
51
Fatigue Strength, MPa 180
230 to 250
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 330
440 to 460
Tensile Strength: Ultimate (UTS), MPa 530
620 to 650
Tensile Strength: Yield (Proof), MPa 280
240 to 260

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 550
420
Maximum Temperature: Mechanical, °C 1050
930
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 19
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 2.6
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
14
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 38
40
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 24
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
250 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 190
150 to 170
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
22 to 23
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 5.2
4.0
Thermal Shock Resistance, points 18
14 to 15

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Carbon (C), % 0 to 0.030
0.030 to 0.080
Chromium (Cr), % 22 to 25
18 to 19
Copper (Cu), % 0 to 0.5
1.3 to 2.0
Iron (Fe), % 70.3 to 77.8
67.4 to 73.6
Manganese (Mn), % 0 to 1.0
1.5 to 4.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.5
5.5 to 6.9
Nitrogen (N), % 0
0.030 to 0.11
Phosphorus (P), % 0 to 0.050
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.015
Titanium (Ti), % 0.2 to 1.0
0