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S32750 Stainless Steel vs. EN 1.7707 Steel

Both S32750 stainless steel and EN 1.7707 steel are iron alloys. They have 66% of their average alloy composition in common. There are 32 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 S32750 stainless steel and the bottom bar is EN 1.7707 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
300
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 17
11
Fatigue Strength, MPa 360
500
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
73
Shear Strength, MPa 530
600
Tensile Strength: Ultimate (UTS), MPa 860
1010
Tensile Strength: Yield (Proof), MPa 590
800

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
460
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 21
3.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.1
1.9
Embodied Energy, MJ/kg 56
27
Embodied Water, L/kg 180
58

Common Calculations

PREN (Pitting Resistance) 43
3.2
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 860
1690
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31
36
Strength to Weight: Bending, points 26
29
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 25
29

Alloy Composition

Carbon (C), % 0 to 0.030
0.26 to 0.34
Chromium (Cr), % 24 to 26
2.3 to 2.7
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 58.1 to 66.8
94.7 to 96.8
Manganese (Mn), % 0 to 1.2
0.4 to 0.7
Molybdenum (Mo), % 3.0 to 5.0
0.15 to 0.25
Nickel (Ni), % 6.0 to 8.0
0 to 0.6
Nitrogen (N), % 0.24 to 0.32
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 0.8
0 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.035
Vanadium (V), % 0
0.1 to 0.2