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EN 1.4640 Stainless Steel vs. AISI 301L Stainless Steel

Both EN 1.4640 stainless steel and AISI 301L stainless steel are iron alloys. They have a very high 95% 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 AISI 301L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 200
210 to 320
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 51
22 to 50
Fatigue Strength, MPa 230 to 250
240 to 530
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 440 to 460
440 to 660
Tensile Strength: Ultimate (UTS), MPa 620 to 650
620 to 1040
Tensile Strength: Yield (Proof), MPa 240 to 260
250 to 790

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 930
890
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
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 14
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 40
39
Embodied Water, L/kg 150
130

Common Calculations

PREN (Pitting Resistance) 20
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 250 to 260
210 to 300
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 170
160 to 1580
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22 to 23
22 to 37
Strength to Weight: Bending, points 21
21 to 29
Thermal Diffusivity, mm2/s 4.0
4.1
Thermal Shock Resistance, points 14 to 15
14 to 24

Alloy Composition

Carbon (C), % 0.030 to 0.080
0 to 0.030
Chromium (Cr), % 18 to 19
16 to 18
Copper (Cu), % 1.3 to 2.0
0
Iron (Fe), % 67.4 to 73.6
70.7 to 78
Manganese (Mn), % 1.5 to 4.0
0 to 2.0
Nickel (Ni), % 5.5 to 6.9
6.0 to 8.0
Nitrogen (N), % 0.030 to 0.11
0 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030