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EN 1.4309 Stainless Steel vs. S32003 Stainless Steel

Both EN 1.4309 stainless steel and S32003 stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4309 stainless steel and the bottom bar is S32003 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
28
Fatigue Strength, MPa 170
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 490
730
Tensile Strength: Yield (Proof), MPa 210
510

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 420
430
Maximum Temperature: Mechanical, °C 960
1010
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 16
14
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.1
3.0
Embodied Energy, MJ/kg 45
42
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 21
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
180
Resilience: Unit (Modulus of Resilience), kJ/m3 110
660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
26
Strength to Weight: Bending, points 18
23
Thermal Diffusivity, mm2/s 4.1
4.0
Thermal Shock Resistance, points 11
21

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 18 to 20
19.5 to 22.5
Iron (Fe), % 64.2 to 73
68.2 to 75.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 9.0 to 12
3.0 to 4.0
Nitrogen (N), % 0 to 0.2
0.14 to 0.2
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.020