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EN 1.4000 Stainless Steel vs. AISI 304LN Stainless Steel

Both EN 1.4000 stainless steel and AISI 304LN stainless steel are iron alloys. They have 83% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4000 stainless steel and the bottom bar is AISI 304LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190 to 350
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
7.8 to 46
Fatigue Strength, MPa 170
200 to 440
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 320
400 to 680
Tensile Strength: Ultimate (UTS), MPa 500
580 to 1160
Tensile Strength: Yield (Proof), MPa 260
230 to 870

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 760
960
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
16
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.9
3.1
Embodied Energy, MJ/kg 27
44
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 13
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
83 to 270
Resilience: Unit (Modulus of Resilience), kJ/m3 180
140 to 1900
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
21 to 41
Strength to Weight: Bending, points 18
20 to 31
Thermal Diffusivity, mm2/s 8.1
4.0
Thermal Shock Resistance, points 18
13 to 26

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 12 to 14
18 to 20
Iron (Fe), % 83.9 to 88
65 to 73.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Nickel (Ni), % 0
8.0 to 12
Nitrogen (N), % 0
0.1 to 0.16
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030