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EN 1.4029 Stainless Steel vs. S32750 Stainless Steel

Both EN 1.4029 stainless steel and S32750 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4029 stainless steel and the bottom bar is S32750 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 10 to 20
17
Fatigue Strength, MPa 270 to 400
360
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
81
Shear Strength, MPa 440 to 550
530
Tensile Strength: Ultimate (UTS), MPa 700 to 930
860
Tensile Strength: Yield (Proof), MPa 410 to 740
590

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 390
450
Maximum Temperature: Mechanical, °C 750
1100
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
21
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
4.1
Embodied Energy, MJ/kg 28
56
Embodied Water, L/kg 100
180

Common Calculations

PREN (Pitting Resistance) 14
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 120
130
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 1410
860
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25 to 33
31
Strength to Weight: Bending, points 23 to 27
26
Thermal Diffusivity, mm2/s 8.1
4.0
Thermal Shock Resistance, points 26 to 34
25

Alloy Composition

Carbon (C), % 0.25 to 0.32
0 to 0.030
Chromium (Cr), % 12 to 13.5
24 to 26
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 82.8 to 87.6
58.1 to 66.8
Manganese (Mn), % 0 to 1.5
0 to 1.2
Molybdenum (Mo), % 0 to 0.6
3.0 to 5.0
Nickel (Ni), % 0
6.0 to 8.0
Nitrogen (N), % 0
0.24 to 0.32
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0.15 to 0.25
0 to 0.020