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ASTM Grade HL Steel vs. S82012 Stainless Steel

Both ASTM grade HL steel and S82012 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HL steel and the bottom bar is S82012 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
40
Fatigue Strength, MPa 150
480
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 500
800
Tensile Strength: Yield (Proof), MPa 270
560

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Maximum Temperature: Corrosion, °C 460
420
Maximum Temperature: Mechanical, °C 1100
950
Melting Completion (Liquidus), °C 1390
1430
Melting Onset (Solidus), °C 1340
1380
Specific Heat Capacity, J/kg-K 490
480
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 27
11
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.5
2.4
Embodied Energy, MJ/kg 65
35
Embodied Water, L/kg 210
140

Common Calculations

PREN (Pitting Resistance) 31
24
Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
290
Resilience: Unit (Modulus of Resilience), kJ/m3 180
790
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
29
Strength to Weight: Bending, points 18
25
Thermal Shock Resistance, points 11
23

Alloy Composition

Carbon (C), % 0.2 to 0.6
0 to 0.050
Chromium (Cr), % 28 to 32
19 to 20.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 40.8 to 53.8
71.3 to 77.9
Manganese (Mn), % 0 to 2.0
2.0 to 4.0
Molybdenum (Mo), % 0 to 0.5
0.1 to 0.6
Nickel (Ni), % 18 to 22
0.8 to 1.5
Nitrogen (N), % 0
0.16 to 0.26
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.0050