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EN 1.6958 Steel vs. EN 1.3553 Steel

Both EN 1.6958 steel and EN 1.3553 steel are iron alloys. They have 85% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, 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 1.3553 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
220
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 1140
720

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 450
540
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 47
24
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
10
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
11

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
24
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 2.0
8.5
Embodied Energy, MJ/kg 27
130
Embodied Water, L/kg 60
96

Common Calculations

PREN (Pitting Resistance) 2.9
31
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 40
24
Strength to Weight: Bending, points 31
21
Thermal Diffusivity, mm2/s 13
6.4
Thermal Shock Resistance, points 39
21

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
0
Carbon (C), % 0.25 to 0.3
0.78 to 0.86
Chromium (Cr), % 1.2 to 1.7
3.9 to 4.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 92.6 to 94.5
80.7 to 83.7
Manganese (Mn), % 0.2 to 0.5
0 to 0.4
Molybdenum (Mo), % 0.35 to 0.55
4.7 to 5.2
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 0.4
Sulfur (S), % 0 to 0.015
0 to 0.015
Tungsten (W), % 0
6.0 to 6.7
Vanadium (V), % 0 to 0.12
1.7 to 2.0