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EN 1.6958 Steel vs. EN 1.5503 Steel

Both EN 1.6958 steel and EN 1.5503 steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 32 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 EN 1.6958 steel and the bottom bar is EN 1.5503 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
120 to 160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
12 to 17
Fatigue Strength, MPa 700
180 to 280
Poisson's Ratio 0.29
0.29
Reduction in Area, % 56
63 to 72
Shear Modulus, GPa 73
73
Shear Strength, MPa 700
270 to 320
Tensile Strength: Ultimate (UTS), MPa 1140
400 to 520
Tensile Strength: Yield (Proof), MPa 1070
270 to 430

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 450
400
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 47
52
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.4
Embodied Energy, MJ/kg 27
18
Embodied Water, L/kg 60
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
41 to 81
Resilience: Unit (Modulus of Resilience), kJ/m3 3050
200 to 490
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 40
14 to 19
Strength to Weight: Bending, points 31
15 to 18
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 39
12 to 15

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
0
Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0.25 to 0.3
0.16 to 0.2
Chromium (Cr), % 1.2 to 1.7
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 92.6 to 94.5
98.4 to 99.239
Manganese (Mn), % 0.2 to 0.5
0.6 to 0.8
Molybdenum (Mo), % 0.35 to 0.55
0
Nickel (Ni), % 3.3 to 3.8
0
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0.15 to 0.3
0 to 0.3
Sulfur (S), % 0 to 0.015
0 to 0.025
Vanadium (V), % 0 to 0.12
0