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ASTM Grade HL Steel vs. S31254 Stainless Steel

Both ASTM grade HL steel and S31254 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 28 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 S31254 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
40
Fatigue Strength, MPa 150
290
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
80
Tensile Strength: Ultimate (UTS), MPa 500
720
Tensile Strength: Yield (Proof), MPa 270
330

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Corrosion, °C 460
420
Maximum Temperature: Mechanical, °C 1100
1090
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1340
1420
Specific Heat Capacity, J/kg-K 490
460
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 27
28
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 4.5
5.5
Embodied Energy, MJ/kg 65
74
Embodied Water, L/kg 210
190

Common Calculations

PREN (Pitting Resistance) 31
44
Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
240
Resilience: Unit (Modulus of Resilience), kJ/m3 180
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
25
Strength to Weight: Bending, points 18
22
Thermal Shock Resistance, points 11
15

Alloy Composition

Carbon (C), % 0.2 to 0.6
0 to 0.020
Chromium (Cr), % 28 to 32
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 40.8 to 53.8
51.4 to 56.3
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
6.0 to 6.5
Nickel (Ni), % 18 to 22
17.5 to 18.5
Nitrogen (N), % 0
0.18 to 0.22
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.010