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S30615 Stainless Steel vs. EN 1.3940 Stainless Steel

Both S30615 stainless steel and EN 1.3940 stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S30615 stainless steel and the bottom bar is EN 1.3940 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 39
34
Fatigue Strength, MPa 270
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 690
540
Tensile Strength: Yield (Proof), MPa 310
240

Thermal Properties

Latent Heat of Fusion, J/g 340
290
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 960
930
Melting Completion (Liquidus), °C 1370
1420
Melting Onset (Solidus), °C 1320
1380
Specific Heat Capacity, J/kg-K 500
480
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 19
17
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 3.7
3.3
Embodied Energy, MJ/kg 53
47
Embodied Water, L/kg 170
150

Common Calculations

PREN (Pitting Resistance) 18
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
150
Resilience: Unit (Modulus of Resilience), kJ/m3 260
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
19
Strength to Weight: Bending, points 23
19
Thermal Diffusivity, mm2/s 3.7
4.1
Thermal Shock Resistance, points 16
16

Alloy Composition

Aluminum (Al), % 0.8 to 1.5
0
Carbon (C), % 0.16 to 0.24
0 to 0.030
Chromium (Cr), % 17 to 19.5
16.5 to 18.5
Iron (Fe), % 56.7 to 65.3
64.2 to 71.4
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 13.5 to 16
12 to 14
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 3.2 to 4.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020