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ASTM Grade HH Steel vs. S32615 Stainless Steel

Both ASTM grade HH steel and S32615 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HH steel and the bottom bar is S32615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
28
Fatigue Strength, MPa 150
180
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
75
Tensile Strength: Ultimate (UTS), MPa 580
620
Tensile Strength: Yield (Proof), MPa 270
250

Thermal Properties

Latent Heat of Fusion, J/g 310
370
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1100
990
Melting Completion (Liquidus), °C 1400
1350
Melting Onset (Solidus), °C 1360
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 17
15

Otherwise Unclassified Properties

Base Metal Price, % relative 20
24
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 3.7
4.4
Embodied Energy, MJ/kg 53
63
Embodied Water, L/kg 180
170

Common Calculations

PREN (Pitting Resistance) 27
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 53
140
Resilience: Unit (Modulus of Resilience), kJ/m3 190
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
23
Strength to Weight: Bending, points 20
21
Thermal Shock Resistance, points 12
15

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.070
Chromium (Cr), % 24 to 28
16.5 to 19.5
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 52.9 to 64.8
46.4 to 57.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0.3 to 1.5
Nickel (Ni), % 11 to 14
19 to 22
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 2.0
4.8 to 6.0
Sulfur (S), % 0 to 0.040
0 to 0.030