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AISI 304L Stainless Steel vs. EN 1.4309 Stainless Steel

Both AISI 304L stainless steel and EN 1.4309 stainless steel are iron alloys. Their average alloy composition is basically identical. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 304L stainless steel and the bottom bar is EN 1.4309 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 350
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 6.7 to 46
34
Fatigue Strength, MPa 170 to 430
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 540 to 1160
490
Tensile Strength: Yield (Proof), MPa 190 to 870
210

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 540
960
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 17
17

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 16
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.1
3.1
Embodied Energy, MJ/kg 44
45
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 20
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 240
140
Resilience: Unit (Modulus of Resilience), kJ/m3 92 to 1900
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19 to 41
18
Strength to Weight: Bending, points 19 to 31
18
Thermal Diffusivity, mm2/s 4.2
4.1
Thermal Shock Resistance, points 12 to 25
11

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 18 to 20
18 to 20
Iron (Fe), % 65 to 74
64.2 to 73
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 8.0 to 12
9.0 to 12
Nitrogen (N), % 0 to 0.1
0 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.75
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.025