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EN 1.7335 Steel vs. EN 1.8879 Steel

Both EN 1.7335 steel and EN 1.8879 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 1.7335 steel and the bottom bar is EN 1.8879 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 160
250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21 to 22
16
Fatigue Strength, MPa 200 to 220
460
Impact Strength: V-Notched Charpy, J 31 to 35
67
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 310 to 330
510
Tensile Strength: Ultimate (UTS), MPa 500 to 520
830
Tensile Strength: Yield (Proof), MPa 280 to 310
710

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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