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S40930 Stainless Steel vs. EN 1.4470 Stainless Steel

Both S40930 stainless steel and EN 1.4470 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 31 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 S40930 stainless steel and the bottom bar is EN 1.4470 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
23
Fatigue Strength, MPa 130
320
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
80
Tensile Strength: Ultimate (UTS), MPa 430
680
Tensile Strength: Yield (Proof), MPa 190
480

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 460
430
Maximum Temperature: Mechanical, °C 710
1060
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
18
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
17
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.3
3.6
Embodied Energy, MJ/kg 32
49
Embodied Water, L/kg 94
160

Common Calculations

PREN (Pitting Resistance) 11
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
140
Resilience: Unit (Modulus of Resilience), kJ/m3 94
570
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 16
24
Strength to Weight: Bending, points 16
22
Thermal Diffusivity, mm2/s 6.7
4.8
Thermal Shock Resistance, points 16
18

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 10.5 to 11.7
21 to 23
Iron (Fe), % 84.7 to 89.4
63.7 to 71.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0 to 0.5
4.5 to 6.5
Niobium (Nb), % 0.080 to 0.75
0
Nitrogen (N), % 0 to 0.030
0.12 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.025
Titanium (Ti), % 0.050 to 0.2
0