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ASTM Grade HL Steel vs. AISI 304N Stainless Steel

Both ASTM grade HL steel and AISI 304N stainless steel are iron alloys. They have 77% 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 HL steel and the bottom bar is AISI 304N stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
190 to 360
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
9.1 to 45
Fatigue Strength, MPa 150
220 to 440
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 500
620 to 1180
Tensile Strength: Yield (Proof), MPa 270
270 to 850

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Corrosion, °C 460
420
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1390
1420
Melting Onset (Solidus), °C 1340
1380
Specific Heat Capacity, J/kg-K 490
480
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 27
15
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.5
3.0
Embodied Energy, MJ/kg 65
43
Embodied Water, L/kg 210
150

Common Calculations

PREN (Pitting Resistance) 31
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
98 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 180
180 to 1830
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
22 to 42
Strength to Weight: Bending, points 18
21 to 32
Thermal Shock Resistance, points 11
14 to 26

Alloy Composition

Carbon (C), % 0.2 to 0.6
0 to 0.080
Chromium (Cr), % 28 to 32
18 to 20
Iron (Fe), % 40.8 to 53.8
66.4 to 73.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 18 to 22
8.0 to 10.5
Nitrogen (N), % 0
0.1 to 0.16
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