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ASTM Grade HD Steel vs. S82012 Stainless Steel

Both ASTM grade HD steel and S82012 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HD steel and the bottom bar is S82012 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 9.1
40
Fatigue Strength, MPa 140
480
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 590
800
Tensile Strength: Yield (Proof), MPa 270
560

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 460
420
Maximum Temperature: Mechanical, °C 1100
950
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 17
11
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.1
2.4
Embodied Energy, MJ/kg 45
35
Embodied Water, L/kg 180
140

Common Calculations

PREN (Pitting Resistance) 29
24
Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
290
Resilience: Unit (Modulus of Resilience), kJ/m3 180
790
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 21
29
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 4.3
3.9
Thermal Shock Resistance, points 19
23

Alloy Composition

Carbon (C), % 0 to 0.5
0 to 0.050
Chromium (Cr), % 26 to 30
19 to 20.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 58.4 to 70
71.3 to 77.9
Manganese (Mn), % 0 to 1.5
2.0 to 4.0
Molybdenum (Mo), % 0 to 0.5
0.1 to 0.6
Nickel (Ni), % 4.0 to 7.0
0.8 to 1.5
Nitrogen (N), % 0
0.16 to 0.26
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.0050