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S30815 Stainless Steel vs. EN 1.4439 Stainless Steel

Both S30815 stainless steel and EN 1.4439 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 33 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 S30815 stainless steel and the bottom bar is EN 1.4439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
40
Fatigue Strength, MPa 320
270
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 480
470
Tensile Strength: Ultimate (UTS), MPa 680
680
Tensile Strength: Yield (Proof), MPa 350
310

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 430
410
Maximum Temperature: Mechanical, °C 1020
980
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 17
22
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.3
4.5
Embodied Energy, MJ/kg 47
61
Embodied Water, L/kg 160
160

Common Calculations

PREN (Pitting Resistance) 24
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 260
220
Resilience: Unit (Modulus of Resilience), kJ/m3 310
240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
24
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 4.0
3.8
Thermal Shock Resistance, points 15
15

Alloy Composition

Carbon (C), % 0.050 to 0.1
0 to 0.030
Cerium (Ce), % 0.030 to 0.080
0
Chromium (Cr), % 20 to 22
16.5 to 18.5
Iron (Fe), % 62.8 to 68.4
58.7 to 66.9
Manganese (Mn), % 0 to 0.8
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 10 to 12
12.5 to 14.5
Nitrogen (N), % 0.14 to 0.2
0.12 to 0.22
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 1.4 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015