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EN 1.8835 Steel vs. EN 1.7228 Steel

Both EN 1.8835 steel and EN 1.7228 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 1.8835 steel and the bottom bar is EN 1.7228 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
270
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
12
Fatigue Strength, MPa 310
390
Impact Strength: V-Notched Charpy, J 91
22
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 360
540
Tensile Strength: Ultimate (UTS), MPa 580
900
Tensile Strength: Yield (Proof), MPa 440
630

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
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 49
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
2.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.5
Embodied Energy, MJ/kg 21
20
Embodied Water, L/kg 48
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
100
Resilience: Unit (Modulus of Resilience), kJ/m3 510
1050
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
32
Strength to Weight: Bending, points 20
26
Thermal Diffusivity, mm2/s 13
12
Thermal Shock Resistance, points 17
26

Alloy Composition

Aluminum (Al), % 0.020 to 0.040
0
Carbon (C), % 0 to 0.16
0.46 to 0.54
Chromium (Cr), % 0
0.9 to 1.2
Iron (Fe), % 96.7 to 99.98
96.7 to 98
Manganese (Mn), % 0 to 1.7
0.5 to 0.8
Molybdenum (Mo), % 0 to 0.2
0.15 to 0.3
Nickel (Ni), % 0 to 0.5
0
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.0080
0 to 0.035
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0 to 0.1
0