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EN 1.8881 Steel vs. EN 1.7335 Steel

Both EN 1.8881 steel and EN 1.7335 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 1.8881 steel and the bottom bar is EN 1.7335 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
150 to 160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
21 to 22
Fatigue Strength, MPa 460
200 to 220
Impact Strength: V-Notched Charpy, J 90
31 to 35
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 510
310 to 330
Tensile Strength: Ultimate (UTS), MPa 830
500 to 520
Tensile Strength: Yield (Proof), MPa 710
280 to 310

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 420
430
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
44
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
2.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.9
1.6
Embodied Energy, MJ/kg 26
21
Embodied Water, L/kg 54
52

Common Calculations

PREN (Pitting Resistance) 2.0
2.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
91 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 1320
210 to 260
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29
18
Strength to Weight: Bending, points 25
18
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 24
15

Alloy Composition

Boron (B), % 0 to 0.0050
0
Carbon (C), % 0 to 0.2
0.080 to 0.18
Chromium (Cr), % 0 to 1.5
0.7 to 1.2
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 91.9 to 100
96.4 to 98.4
Manganese (Mn), % 0 to 1.7
0.4 to 1.0
Molybdenum (Mo), % 0 to 0.7
0.4 to 0.6
Nickel (Ni), % 0 to 2.5
0
Niobium (Nb), % 0 to 0.060
0
Nitrogen (N), % 0 to 0.015
0 to 0.012
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.8
0 to 0.35
Sulfur (S), % 0 to 0.0080
0 to 0.010
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0 to 0.12
0
Zirconium (Zr), % 0 to 0.15
0