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ASTM Grade HD Steel vs. S40910 Stainless Steel

Both ASTM grade HD steel and S40910 stainless steel are iron alloys. They have 77% 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 S40910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 9.1
23
Fatigue Strength, MPa 140
130
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
75
Tensile Strength: Ultimate (UTS), MPa 590
430
Tensile Strength: Yield (Proof), MPa 270
190

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Corrosion, °C 460
440
Maximum Temperature: Mechanical, °C 1100
710
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 16
26
Thermal Expansion, µm/m-K 11
10

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
7.0
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.1
2.0
Embodied Energy, MJ/kg 45
28
Embodied Water, L/kg 180
94

Common Calculations

PREN (Pitting Resistance) 29
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
80
Resilience: Unit (Modulus of Resilience), kJ/m3 180
94
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 21
16
Strength to Weight: Bending, points 20
16
Thermal Diffusivity, mm2/s 4.3
6.9
Thermal Shock Resistance, points 19
16

Alloy Composition

Carbon (C), % 0 to 0.5
0 to 0.030
Chromium (Cr), % 26 to 30
10.5 to 11.7
Iron (Fe), % 58.4 to 70
85 to 89.5
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 0.5
Niobium (Nb), % 0
0 to 0.17
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.020
Titanium (Ti), % 0
0 to 0.5