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ASTM Grade HF Steel vs. EN 1.4818 Stainless Steel

Both ASTM grade HF steel and EN 1.4818 stainless steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HF steel and the bottom bar is EN 1.4818 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 29
40
Fatigue Strength, MPa 200
280
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 550
700
Tensile Strength: Yield (Proof), MPa 270
330

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 1000
1050
Melting Completion (Liquidus), °C 1410
1410
Melting Onset (Solidus), °C 1370
1370
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 16
17
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 17
16
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.2
3.1
Embodied Energy, MJ/kg 46
44
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 21
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
230
Resilience: Unit (Modulus of Resilience), kJ/m3 180
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
25
Strength to Weight: Bending, points 19
23
Thermal Diffusivity, mm2/s 4.2
4.5
Thermal Shock Resistance, points 12
15

Alloy Composition

Carbon (C), % 0.2 to 0.4
0.040 to 0.080
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 18 to 23
18 to 20
Iron (Fe), % 60 to 73.8
65.6 to 71.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 8.0 to 12
9.0 to 11
Nitrogen (N), % 0
0.12 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 2.0
1.0 to 2.0
Sulfur (S), % 0 to 0.040
0 to 0.015