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EN 1.4640 Stainless Steel vs. EN 1.4613 Stainless Steel

Both EN 1.4640 stainless steel and EN 1.4613 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 1.4640 stainless steel and the bottom bar is EN 1.4613 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 420
550
Maximum Temperature: Mechanical, °C 930
1050
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
19
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
2.6

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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