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S30530 Stainless Steel vs. EN 1.7720 Steel

Both S30530 stainless steel and EN 1.7720 steel are iron alloys. They have 68% 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 S30530 stainless steel and the bottom bar is EN 1.7720 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 46
19
Fatigue Strength, MPa 210
230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 590
590
Tensile Strength: Yield (Proof), MPa 230
340

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 970
410
Melting Completion (Liquidus), °C 1410
1470
Melting Onset (Solidus), °C 1370
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 18
2.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.4
2.2
Embodied Energy, MJ/kg 48
30
Embodied Water, L/kg 150
51

Common Calculations

PREN (Pitting Resistance) 22
2.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
97
Resilience: Unit (Modulus of Resilience), kJ/m3 130
300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
21
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 4.1
11
Thermal Shock Resistance, points 13
17

Alloy Composition

Carbon (C), % 0 to 0.080
0.1 to 0.15
Chromium (Cr), % 17 to 20.5
0.3 to 0.5
Copper (Cu), % 0.75 to 3.5
0 to 0.3
Iron (Fe), % 58.4 to 72.5
96.6 to 98.6
Manganese (Mn), % 0 to 2.0
0.4 to 0.7
Molybdenum (Mo), % 0.75 to 1.5
0.4 to 0.6
Nickel (Ni), % 8.5 to 11.5
0 to 0.4
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0.5 to 2.5
0 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.020
Vanadium (V), % 0
0.22 to 0.3