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AISI 309 Stainless Steel vs. ASTM Grade HL Steel

Both AISI 309 stainless steel and ASTM grade HL 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 AISI 309 stainless steel and the bottom bar is ASTM grade HL steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 210
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34 to 47
11
Fatigue Strength, MPa 250 to 280
150
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 600 to 710
500
Tensile Strength: Yield (Proof), MPa 260 to 350
270

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Corrosion, °C 440
460
Maximum Temperature: Mechanical, °C 980
1100
Melting Completion (Liquidus), °C 1450
1390
Melting Onset (Solidus), °C 1400
1340
Specific Heat Capacity, J/kg-K 480
490
Thermal Expansion, µm/m-K 15
17

Otherwise Unclassified Properties

Base Metal Price, % relative 19
27
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.6
4.5
Embodied Energy, MJ/kg 51
65
Embodied Water, L/kg 170
210

Common Calculations

PREN (Pitting Resistance) 23
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
48
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 310
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 25
18
Strength to Weight: Bending, points 20 to 23
18
Thermal Shock Resistance, points 14 to 16
11

Alloy Composition

Carbon (C), % 0 to 0.2
0.2 to 0.6
Chromium (Cr), % 22 to 24
28 to 32
Iron (Fe), % 58 to 66
40.8 to 53.8
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 12 to 15
18 to 22
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040