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ASTM Grade HD Steel vs. S41425 Stainless Steel

Both ASTM grade HD steel and S41425 stainless steel are iron alloys. They have 84% 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 S41425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 9.1
17
Fatigue Strength, MPa 140
450
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 590
920
Tensile Strength: Yield (Proof), MPa 270
750

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 460
390
Maximum Temperature: Mechanical, °C 1100
810
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 16
16
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 17
13
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.1
2.9
Embodied Energy, MJ/kg 45
40
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 29
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
150
Resilience: Unit (Modulus of Resilience), kJ/m3 180
1420
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 21
33
Strength to Weight: Bending, points 20
27
Thermal Diffusivity, mm2/s 4.3
4.4
Thermal Shock Resistance, points 19
33

Alloy Composition

Carbon (C), % 0 to 0.5
0 to 0.050
Chromium (Cr), % 26 to 30
12 to 15
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 58.4 to 70
74 to 81.9
Manganese (Mn), % 0 to 1.5
0.5 to 1.0
Molybdenum (Mo), % 0 to 0.5
1.5 to 2.0
Nickel (Ni), % 4.0 to 7.0
4.0 to 7.0
Nitrogen (N), % 0
0.060 to 0.12
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.0050