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ASTM Grade HD Steel vs. AISI 403 Stainless Steel

Both ASTM grade HD steel and AISI 403 stainless steel are iron alloys. They have 78% 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 403 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 9.1
16 to 25
Fatigue Strength, MPa 140
200 to 340
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 590
530 to 780
Tensile Strength: Yield (Proof), MPa 270
280 to 570

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Corrosion, °C 460
390
Maximum Temperature: Mechanical, °C 1100
740
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
28
Thermal Expansion, µm/m-K 11
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 17
6.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.9
Embodied Energy, MJ/kg 45
27
Embodied Water, L/kg 180
99

Common Calculations

PREN (Pitting Resistance) 29
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 180
210 to 840
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 21
19 to 28
Strength to Weight: Bending, points 20
19 to 24
Thermal Diffusivity, mm2/s 4.3
7.6
Thermal Shock Resistance, points 19
20 to 29

Alloy Composition

Carbon (C), % 0 to 0.5
0 to 0.15
Chromium (Cr), % 26 to 30
11.5 to 13
Iron (Fe), % 58.4 to 70
84.7 to 88.5
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 4.0 to 7.0
0 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.030