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EN 1.7383 Steel vs. EN 1.8888 Steel

Both EN 1.7383 steel and EN 1.8888 steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.7383 steel and the bottom bar is EN 1.8888 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 180
250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 23
16
Fatigue Strength, MPa 210 to 270
470
Impact Strength: V-Notched Charpy, J 38
110
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 350 to 380
510
Tensile Strength: Ultimate (UTS), MPa 560 to 610
830
Tensile Strength: Yield (Proof), MPa 300 to 400
720

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Maximum Temperature: Mechanical, °C 460
420
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
3.7
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.9
Embodied Energy, MJ/kg 23
26
Embodied Water, L/kg 59
54

Common Calculations

PREN (Pitting Resistance) 5.6
2.0
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
130
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 420
1370
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20 to 22
29
Strength to Weight: Bending, points 19 to 20
25
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 16 to 18
24

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0.080 to 0.15
0 to 0.2
Chromium (Cr), % 2.0 to 2.5
0 to 1.5
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 94.3 to 96.6
91.9 to 100
Manganese (Mn), % 0.4 to 0.8
0 to 1.7
Molybdenum (Mo), % 0.9 to 1.1
0 to 0.7
Nickel (Ni), % 0 to 0.3
0 to 2.5
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.0050
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0 to 0.12
Zirconium (Zr), % 0
0 to 0.15