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EN 1.7365 Steel vs. EN 1.7366 Steel

Both EN 1.7365 steel and EN 1.7366 steel are iron alloys. Their average alloy composition is basically identical. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.7365 steel and the bottom bar is EN 1.7366 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
140 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18
17 to 19
Fatigue Strength, MPa 320
160 to 320
Impact Strength: V-Notched Charpy, J 31
38
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
74
Tensile Strength: Ultimate (UTS), MPa 700
460 to 710
Tensile Strength: Yield (Proof), MPa 470
230 to 480

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Maximum Temperature: Mechanical, °C 510
510
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.4
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 4.4
4.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.7
Embodied Energy, MJ/kg 24
23
Embodied Water, L/kg 70
69

Common Calculations

PREN (Pitting Resistance) 6.8
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
74 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 580
140 to 600
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
16 to 25
Strength to Weight: Bending, points 22
17 to 23
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 20
13 to 20

Alloy Composition

Carbon (C), % 0.12 to 0.19
0 to 0.18
Chromium (Cr), % 4.0 to 6.0
4.0 to 6.0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 91.2 to 94.9
91.9 to 95.3
Manganese (Mn), % 0.5 to 0.8
0.3 to 0.8
Molybdenum (Mo), % 0.45 to 0.65
0.45 to 0.65
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.8
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.015
Vanadium (V), % 0 to 0.050
0