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ASTM Grade HD Steel vs. AISI 415 Stainless Steel

Both ASTM grade HD steel and AISI 415 stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HD steel and the bottom bar is AISI 415 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
430
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 590
900
Tensile Strength: Yield (Proof), MPa 270
700

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Corrosion, °C 460
390
Maximum Temperature: Mechanical, °C 1100
780
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 16
24
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 17
11
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.1
2.5
Embodied Energy, MJ/kg 45
35
Embodied Water, L/kg 180
110

Common Calculations

PREN (Pitting Resistance) 29
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
140
Resilience: Unit (Modulus of Resilience), kJ/m3 180
1250
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 21
32
Strength to Weight: Bending, points 20
26
Thermal Diffusivity, mm2/s 4.3
6.4
Thermal Shock Resistance, points 19
33

Alloy Composition

Carbon (C), % 0 to 0.5
0 to 0.050
Chromium (Cr), % 26 to 30
11.5 to 14
Iron (Fe), % 58.4 to 70
77.8 to 84
Manganese (Mn), % 0 to 1.5
0.5 to 1.0
Molybdenum (Mo), % 0 to 0.5
0.5 to 1.0
Nickel (Ni), % 4.0 to 7.0
3.5 to 5.5
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.030