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EN 1.8879 Steel vs. ASTM Grade HT Steel

Both EN 1.8879 steel and ASTM grade HT steel are iron alloys. They have 49% 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 1.8879 steel and the bottom bar is ASTM grade HT steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
4.6
Fatigue Strength, MPa 460
130
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 830
500
Tensile Strength: Yield (Proof), MPa 710
270

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Maximum Temperature: Mechanical, °C 420
1010
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
12
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
31
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.9
5.4
Embodied Energy, MJ/kg 26
76
Embodied Water, L/kg 54
190

Common Calculations

PREN (Pitting Resistance) 2.0
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
19
Resilience: Unit (Modulus of Resilience), kJ/m3 1320
180
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29
18
Strength to Weight: Bending, points 25
18
Thermal Diffusivity, mm2/s 11
3.2
Thermal Shock Resistance, points 24
12

Alloy Composition

Boron (B), % 0 to 0.0050
0
Carbon (C), % 0 to 0.2
0.35 to 0.75
Chromium (Cr), % 0 to 1.5
15 to 19
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 91.9 to 100
38.2 to 51.7
Manganese (Mn), % 0 to 1.7
0 to 2.0
Molybdenum (Mo), % 0 to 0.7
0 to 0.5
Nickel (Ni), % 0 to 2.5
33 to 37
Niobium (Nb), % 0 to 0.060
0
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 2.5
Sulfur (S), % 0 to 0.010
0 to 0.040
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0 to 0.12
0
Zirconium (Zr), % 0 to 0.15
0