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SAE-AISI S7 Steel vs. EN 1.3553 Steel

Both SAE-AISI S7 steel and EN 1.3553 steel are iron alloys. They have 88% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S7 steel and the bottom bar is EN 1.3553 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
77
Tensile Strength: Ultimate (UTS), MPa 670 to 2030
720

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1460
1620
Melting Onset (Solidus), °C 1420
1570
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 40
24
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
10
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
11

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
24
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 2.3
8.5
Embodied Energy, MJ/kg 31
130
Embodied Water, L/kg 65
96

Common Calculations

PREN (Pitting Resistance) 8.4
31
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24 to 72
24
Strength to Weight: Bending, points 22 to 46
21
Thermal Diffusivity, mm2/s 11
6.4
Thermal Shock Resistance, points 22 to 66
21

Alloy Composition

Carbon (C), % 0.45 to 0.55
0.78 to 0.86
Chromium (Cr), % 3.0 to 3.5
3.9 to 4.3
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 91.6 to 94.9
80.7 to 83.7
Manganese (Mn), % 0.2 to 0.9
0 to 0.4
Molybdenum (Mo), % 1.3 to 1.8
4.7 to 5.2
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.2 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 0
6.0 to 6.7
Vanadium (V), % 0 to 0.3
1.7 to 2.0