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ASTM Grade HF Steel vs. S38815 Stainless Steel

Both ASTM grade HF steel and S38815 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HF steel and the bottom bar is S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
34
Fatigue Strength, MPa 200
230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 550
610
Tensile Strength: Yield (Proof), MPa 270
290

Thermal Properties

Latent Heat of Fusion, J/g 300
370
Maximum Temperature: Corrosion, °C 420
400
Maximum Temperature: Mechanical, °C 1000
860
Melting Completion (Liquidus), °C 1410
1360
Melting Onset (Solidus), °C 1370
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 17
19
Density, g/cm3 7.7
7.5
Embodied Carbon, kg CO2/kg material 3.2
3.8
Embodied Energy, MJ/kg 46
54
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 21
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
170
Resilience: Unit (Modulus of Resilience), kJ/m3 180
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
22
Strength to Weight: Bending, points 19
21
Thermal Shock Resistance, points 12
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0.2 to 0.4
0 to 0.030
Chromium (Cr), % 18 to 23
13 to 15
Copper (Cu), % 0
0.75 to 1.5
Iron (Fe), % 60 to 73.8
56.1 to 67
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0.75 to 1.5
Nickel (Ni), % 8.0 to 12
13 to 17
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
5.5 to 6.5
Sulfur (S), % 0 to 0.040
0 to 0.020