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S30615 Stainless Steel vs. EN 1.7720 Steel

Both S30615 stainless steel and EN 1.7720 steel are iron alloys. They have 63% 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 1.7720 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 39
19
Fatigue Strength, MPa 270
230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 690
590
Tensile Strength: Yield (Proof), MPa 310
340

Thermal Properties

Latent Heat of Fusion, J/g 340
250
Maximum Temperature: Mechanical, °C 960
410
Melting Completion (Liquidus), °C 1370
1470
Melting Onset (Solidus), °C 1320
1430
Specific Heat Capacity, J/kg-K 500
470
Thermal Conductivity, W/m-K 14
40
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.8
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 3.7
2.2
Embodied Energy, MJ/kg 53
30
Embodied Water, L/kg 170
51

Common Calculations

PREN (Pitting Resistance) 18
2.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
97
Resilience: Unit (Modulus of Resilience), kJ/m3 260
300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
21
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 3.7
11
Thermal Shock Resistance, points 16
17

Alloy Composition

Aluminum (Al), % 0.8 to 1.5
0
Carbon (C), % 0.16 to 0.24
0.1 to 0.15
Chromium (Cr), % 17 to 19.5
0.3 to 0.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 56.7 to 65.3
96.6 to 98.6
Manganese (Mn), % 0 to 2.0
0.4 to 0.7
Molybdenum (Mo), % 0
0.4 to 0.6
Nickel (Ni), % 13.5 to 16
0 to 0.4
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 3.2 to 4.0
0 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.020
Vanadium (V), % 0
0.22 to 0.3