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AISI 309 Stainless Steel vs. EN 1.4874 Stainless Steel

Both AISI 309 stainless steel and EN 1.4874 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 30 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 309 stainless steel and the bottom bar is EN 1.4874 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 210
140
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34 to 47
6.7
Fatigue Strength, MPa 250 to 280
180
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 600 to 710
480
Tensile Strength: Yield (Proof), MPa 260 to 350
360

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 440
560
Maximum Temperature: Mechanical, °C 980
1150
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 16
13
Thermal Expansion, µm/m-K 15
15

Otherwise Unclassified Properties

Base Metal Price, % relative 19
70
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 3.6
7.6
Embodied Energy, MJ/kg 51
110
Embodied Water, L/kg 170
290

Common Calculations

PREN (Pitting Resistance) 23
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
29
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 310
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 25
16
Strength to Weight: Bending, points 20 to 23
16
Thermal Diffusivity, mm2/s 4.3
3.3
Thermal Shock Resistance, points 14 to 16
11

Alloy Composition

Carbon (C), % 0 to 0.2
0.35 to 0.65
Chromium (Cr), % 22 to 24
19 to 22
Cobalt (Co), % 0
18.5 to 22
Iron (Fe), % 58 to 66
23 to 38.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 12 to 15
18 to 22
Niobium (Nb), % 0
0.75 to 1.3
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
2.0 to 3.0