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EN 1.7336 Steel vs. EN 1.8888 Steel

Both EN 1.7336 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 1.7336 steel and the bottom bar is EN 1.8888 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
16
Fatigue Strength, MPa 240 to 310
470
Impact Strength: V-Notched Charpy, J 39 to 46
110
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 370
510
Tensile Strength: Ultimate (UTS), MPa 590
830
Tensile Strength: Yield (Proof), MPa 340 to 440
720

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Maximum Temperature: Mechanical, °C 430
420
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 7.5
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
9.3

Otherwise Unclassified Properties

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

Common Calculations

PREN (Pitting Resistance) 3.2
2.0
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
130
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 510
1370
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
29
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 17
24

Alloy Composition

Boron (B), % 0
0 to 0.0050
Carbon (C), % 0 to 0.17
0 to 0.2
Chromium (Cr), % 1.0 to 1.5
0 to 1.5
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 95.6 to 97.7
91.9 to 100
Manganese (Mn), % 0.4 to 0.65
0 to 1.7
Molybdenum (Mo), % 0.45 to 0.65
0 to 0.7
Nickel (Ni), % 0 to 0.3
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 0.015
0 to 0.020
Silicon (Si), % 0.5 to 0.8
0 to 0.8
Sulfur (S), % 0 to 0.0050
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