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EN 1.3558 Steel vs. EN 1.3553 Steel

Both EN 1.3558 steel and EN 1.3553 steel are iron alloys. Both are furnished in the spheroidized condition. They have 89% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.3558 steel and the bottom bar is EN 1.3553 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
220
Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 770
720

Thermal Properties

Latent Heat of Fusion, J/g 240
260
Maximum Temperature: Mechanical, °C 490
540
Melting Completion (Liquidus), °C 1810
1620
Melting Onset (Solidus), °C 1760
1570
Specific Heat Capacity, J/kg-K 410
440
Thermal Conductivity, W/m-K 20
24
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
10
Electrical Conductivity: Equal Weight (Specific), % IACS 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 45
24
Density, g/cm3 9.3
8.4
Embodied Carbon, kg CO2/kg material 8.4
8.5
Embodied Energy, MJ/kg 130
130
Embodied Water, L/kg 90
96

Common Calculations

PREN (Pitting Resistance) 35
31
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 21
23
Strength to Weight: Axial, points 23
24
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 5.3
6.4
Thermal Shock Resistance, points 22
21

Alloy Composition

Carbon (C), % 0.7 to 0.8
0.78 to 0.86
Chromium (Cr), % 3.9 to 4.3
3.9 to 4.3
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 73.7 to 77.6
80.7 to 83.7
Manganese (Mn), % 0 to 0.4
0 to 0.4
Molybdenum (Mo), % 0 to 0.6
4.7 to 5.2
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.015
Tungsten (W), % 17.5 to 19
6.0 to 6.7
Vanadium (V), % 1.0 to 1.3
1.7 to 2.0