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ASTM Grade HH Steel vs. S32003 Stainless Steel

Both ASTM grade HH steel and S32003 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 32 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 HH steel and the bottom bar is S32003 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
28
Fatigue Strength, MPa 150
370
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 580
730
Tensile Strength: Yield (Proof), MPa 270
510

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 440
430
Maximum Temperature: Mechanical, °C 1100
1010
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 20
14
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.7
3.0
Embodied Energy, MJ/kg 53
42
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 27
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 53
180
Resilience: Unit (Modulus of Resilience), kJ/m3 190
660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
26
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 3.8
4.0
Thermal Shock Resistance, points 12
21

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.030
Chromium (Cr), % 24 to 28
19.5 to 22.5
Iron (Fe), % 52.9 to 64.8
68.2 to 75.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
1.5 to 2.0
Nickel (Ni), % 11 to 14
3.0 to 4.0
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.020