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ASTM Grade HC Steel vs. EN 1.4729 Stainless Steel

Both ASTM grade HC steel and EN 1.4729 stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HC steel and the bottom bar is EN 1.4729 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 6.0
15
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
75

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 460
390
Maximum Temperature: Mechanical, °C 1100
850
Melting Completion (Liquidus), °C 1410
1420
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 490
490
Thermal Conductivity, W/m-K 17
24
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 14
7.5
Density, g/cm3 7.6
7.6
Embodied Carbon, kg CO2/kg material 2.8
2.1
Embodied Energy, MJ/kg 40
29
Embodied Water, L/kg 170
100

Common Calculations

PREN (Pitting Resistance) 29
14
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Thermal Diffusivity, mm2/s 4.5
6.5

Alloy Composition

Carbon (C), % 0 to 0.5
0.3 to 0.5
Chromium (Cr), % 26 to 30
12 to 14
Iron (Fe), % 61.9 to 74
80.4 to 86.7
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 0 to 4.0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
1.0 to 2.5
Sulfur (S), % 0 to 0.040
0 to 0.030