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EN 1.7779 Steel vs. ACI-ASTM CK35MN Steel

Both EN 1.7779 steel and ACI-ASTM CK35MN steel are iron alloys. They have 52% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.7779 steel and the bottom bar is ACI-ASTM CK35MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
190
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 16
40
Fatigue Strength, MPa 430
270
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
81
Tensile Strength: Ultimate (UTS), MPa 810
650
Tensile Strength: Yield (Proof), MPa 660
310

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Maximum Temperature: Mechanical, °C 470
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
31
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.8
5.9
Embodied Energy, MJ/kg 41
81
Embodied Water, L/kg 64
210

Common Calculations

PREN (Pitting Resistance) 5.0
48
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
210
Resilience: Unit (Modulus of Resilience), kJ/m3 1150
240
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
22
Strength to Weight: Bending, points 25
21
Thermal Diffusivity, mm2/s 11
3.3
Thermal Shock Resistance, points 23
14

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.17 to 0.23
0 to 0.035
Chromium (Cr), % 3.0 to 3.3
22 to 24
Copper (Cu), % 0 to 0.3
0 to 0.4
Iron (Fe), % 93.8 to 95.4
43.4 to 51.8
Manganese (Mn), % 0.3 to 0.5
0 to 2.0
Molybdenum (Mo), % 0.5 to 0.6
6.0 to 6.8
Nickel (Ni), % 0 to 0.3
20 to 22
Nitrogen (N), % 0
0.21 to 0.32
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.020
Vanadium (V), % 0.45 to 0.55
0