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ASTM Grade HD Steel vs. EN 1.4618 Stainless Steel

Both ASTM grade HD steel and EN 1.4618 stainless steel are iron alloys. They have 88% 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 ASTM grade HD steel and the bottom bar is EN 1.4618 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 9.1
51
Fatigue Strength, MPa 140
240 to 250
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 590
680 to 700
Tensile Strength: Yield (Proof), MPa 270
250 to 260

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 460
410
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1410
1400
Melting Onset (Solidus), °C 1370
1360
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 17
13
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.1
2.7
Embodied Energy, MJ/kg 45
39
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 29
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
270 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 180
160 to 170
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 21
24 to 25
Strength to Weight: Bending, points 20
22 to 23
Thermal Diffusivity, mm2/s 4.3
4.0
Thermal Shock Resistance, points 19
15 to 16

Alloy Composition

Carbon (C), % 0 to 0.5
0 to 0.1
Chromium (Cr), % 26 to 30
16.5 to 18.5
Copper (Cu), % 0
1.0 to 2.5
Iron (Fe), % 58.4 to 70
62.7 to 72.5
Manganese (Mn), % 0 to 1.5
5.5 to 9.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 4.0 to 7.0
4.5 to 5.5
Nitrogen (N), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.040
0 to 0.070
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.010