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ASTM Grade HL Steel vs. S15500 Stainless Steel

Both ASTM grade HL steel and S15500 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HL steel and the bottom bar is S15500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
290 to 430
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
6.8 to 16
Fatigue Strength, MPa 150
350 to 650
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
75
Tensile Strength: Ultimate (UTS), MPa 500
890 to 1490
Tensile Strength: Yield (Proof), MPa 270
590 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Maximum Temperature: Corrosion, °C 460
440
Maximum Temperature: Mechanical, °C 1100
820
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
11

Otherwise Unclassified Properties

Base Metal Price, % relative 27
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.5
2.7
Embodied Energy, MJ/kg 65
39
Embodied Water, L/kg 210
130

Common Calculations

PREN (Pitting Resistance) 31
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 180
890 to 4460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
32 to 53
Strength to Weight: Bending, points 18
26 to 37
Thermal Shock Resistance, points 11
30 to 50

Alloy Composition

Carbon (C), % 0.2 to 0.6
0 to 0.070
Chromium (Cr), % 28 to 32
14 to 15.5
Copper (Cu), % 0
2.5 to 4.5
Iron (Fe), % 40.8 to 53.8
71.9 to 79.9
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 18 to 22
3.5 to 5.5
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030