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EN 1.8881 Steel vs. EN 1.7336 Steel

Both EN 1.8881 steel and EN 1.7336 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 1.7336 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
22
Fatigue Strength, MPa 460
240 to 310
Impact Strength: V-Notched Charpy, J 90
39 to 46
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 510
370
Tensile Strength: Ultimate (UTS), MPa 830
590
Tensile Strength: Yield (Proof), MPa 710
340 to 440

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Maximum Temperature: Mechanical, °C 420
430
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 40
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
3.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.9
1.6
Embodied Energy, MJ/kg 26
21
Embodied Water, L/kg 54
53

Common Calculations

PREN (Pitting Resistance) 2.0
3.2
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 1320
310 to 510
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29
21
Strength to Weight: Bending, points 25
20
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 24
17

Alloy Composition

Boron (B), % 0 to 0.0050
0
Carbon (C), % 0 to 0.2
0 to 0.17
Chromium (Cr), % 0 to 1.5
1.0 to 1.5
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 91.9 to 100
95.6 to 97.7
Manganese (Mn), % 0 to 1.7
0.4 to 0.65
Molybdenum (Mo), % 0 to 0.7
0.45 to 0.65
Nickel (Ni), % 0 to 2.5
0 to 0.3
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 0.015
Silicon (Si), % 0 to 0.8
0.5 to 0.8
Sulfur (S), % 0 to 0.0080
0 to 0.0050
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0 to 0.12
0
Zirconium (Zr), % 0 to 0.15
0