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ASTM Grade HC Steel vs. S44625 Stainless Steel

Both ASTM grade HC steel and S44625 stainless steel are iron alloys. They have a very high 95% of their average alloy composition in common. There are 31 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 HC steel and the bottom bar is S44625 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 6.0
22
Fatigue Strength, MPa 96
240
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 80
80
Tensile Strength: Ultimate (UTS), MPa 430
590
Tensile Strength: Yield (Proof), MPa 200
360

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 460
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 17
17
Thermal Expansion, µm/m-K 11
11

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 14
14
Density, g/cm3 7.6
7.7
Embodied Carbon, kg CO2/kg material 2.8
2.8
Embodied Energy, MJ/kg 40
39
Embodied Water, L/kg 170
160

Common Calculations

PREN (Pitting Resistance) 29
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
110
Resilience: Unit (Modulus of Resilience), kJ/m3 95
310
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 16
21
Strength to Weight: Bending, points 16
20
Thermal Diffusivity, mm2/s 4.5
4.6
Thermal Shock Resistance, points 14
19

Alloy Composition

Carbon (C), % 0 to 0.5
0 to 0.010
Chromium (Cr), % 26 to 30
25 to 27.5
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 61.9 to 74
69.4 to 74.3
Manganese (Mn), % 0 to 1.0
0 to 0.4
Molybdenum (Mo), % 0 to 0.5
0.75 to 1.5
Nickel (Ni), % 0 to 4.0
0 to 0.5
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 2.0
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.020