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S15700 Stainless Steel vs. EN 1.4518 Stainless Steel

Both S15700 stainless steel and EN 1.4518 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 31 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 S15700 stainless steel and the bottom bar is EN 1.4518 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 1.1 to 29
34
Fatigue Strength, MPa 370 to 770
160
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 1180 to 1890
490
Tensile Strength: Yield (Proof), MPa 500 to 1770
210

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 400
420
Maximum Temperature: Mechanical, °C 870
1000
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 15
20
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.4
4.0
Embodied Energy, MJ/kg 47
55
Embodied Water, L/kg 140
160

Common Calculations

PREN (Pitting Resistance) 23
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 270
140
Resilience: Unit (Modulus of Resilience), kJ/m3 640 to 4660
100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 42 to 67
17
Strength to Weight: Bending, points 32 to 43
18
Thermal Diffusivity, mm2/s 4.2
4.1
Thermal Shock Resistance, points 39 to 63
14

Alloy Composition

Aluminum (Al), % 0.75 to 1.5
0
Carbon (C), % 0 to 0.090
0 to 0.030
Chromium (Cr), % 14 to 16
18 to 20
Iron (Fe), % 69.6 to 76.8
61.4 to 70
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 2.0 to 3.0
3.0 to 3.5
Nickel (Ni), % 6.5 to 7.7
9.0 to 12
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030