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ASTM Grade HF Steel vs. AISI 317L Stainless Steel

Both ASTM grade HF steel and AISI 317L stainless steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 32 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 HF steel and the bottom bar is AISI 317L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 29
44
Fatigue Strength, MPa 200
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
82
Tensile Strength: Ultimate (UTS), MPa 550
550
Tensile Strength: Yield (Proof), MPa 270
250

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 1000
1010
Melting Completion (Liquidus), °C 1410
1400
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
14
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 17
21
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.2
4.3
Embodied Energy, MJ/kg 46
59
Embodied Water, L/kg 150
160

Common Calculations

PREN (Pitting Resistance) 21
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
200
Resilience: Unit (Modulus of Resilience), kJ/m3 180
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
19
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 4.2
3.8
Thermal Shock Resistance, points 12
12

Alloy Composition

Carbon (C), % 0.2 to 0.4
0 to 0.030
Chromium (Cr), % 18 to 23
18 to 20
Iron (Fe), % 60 to 73.8
58 to 68
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
3.0 to 4.0
Nickel (Ni), % 8.0 to 12
11 to 15
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 2.0
0 to 0.75
Sulfur (S), % 0 to 0.040
0 to 0.030