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S39274 Stainless Steel vs. EN 1.4031 Stainless Steel

Both S39274 stainless steel and EN 1.4031 stainless steel are iron alloys. They have 76% 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 S39274 stainless steel and the bottom bar is EN 1.4031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 17
11 to 13
Fatigue Strength, MPa 380
220 to 400
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
76
Shear Strength, MPa 560
400 to 540
Tensile Strength: Ultimate (UTS), MPa 900
670 to 900
Tensile Strength: Yield (Proof), MPa 620
390 to 730

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 1100
770
Melting Completion (Liquidus), °C 1480
1440
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
30
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
3.7

Otherwise Unclassified Properties

Base Metal Price, % relative 24
7.0
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 4.3
1.9
Embodied Energy, MJ/kg 60
27
Embodied Water, L/kg 180
100

Common Calculations

PREN (Pitting Resistance) 43
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
77 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 940
380 to 1360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32
24 to 32
Strength to Weight: Bending, points 26
22 to 27
Thermal Diffusivity, mm2/s 4.2
8.1
Thermal Shock Resistance, points 25
23 to 32

Alloy Composition

Carbon (C), % 0 to 0.030
0.36 to 0.42
Chromium (Cr), % 24 to 26
12.5 to 14.5
Copper (Cu), % 0.2 to 0.8
0
Iron (Fe), % 57 to 65.6
83 to 87.1
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 6.0 to 8.0
0
Nitrogen (N), % 0.24 to 0.32
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015
Tungsten (W), % 1.5 to 2.5
0