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ASTM Grade HD Steel vs. S39274 Stainless Steel

Both ASTM grade HD steel and S39274 stainless steel are iron alloys. They have a moderately high 93% 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 S39274 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 9.1
17
Fatigue Strength, MPa 140
380
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 80
81
Tensile Strength: Ultimate (UTS), MPa 590
900
Tensile Strength: Yield (Proof), MPa 270
620

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 460
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1410
1480
Melting Onset (Solidus), °C 1370
1430
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 16
16
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
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 17
24
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 3.1
4.3
Embodied Energy, MJ/kg 45
60
Embodied Water, L/kg 180
180

Common Calculations

PREN (Pitting Resistance) 29
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
140
Resilience: Unit (Modulus of Resilience), kJ/m3 180
940
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
4.2
Thermal Shock Resistance, points 19
25

Alloy Composition

Carbon (C), % 0 to 0.5
0 to 0.030
Chromium (Cr), % 26 to 30
24 to 26
Copper (Cu), % 0
0.2 to 0.8
Iron (Fe), % 58.4 to 70
57 to 65.6
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
2.5 to 3.5
Nickel (Ni), % 4.0 to 7.0
6.0 to 8.0
Nitrogen (N), % 0
0.24 to 0.32
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5