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ASTM Grade HL Steel vs. ASTM Grade HG10 MNN Steel

Both ASTM grade HL steel and ASTM grade HG10 MNN steel are iron alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 81% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HL steel and the bottom bar is ASTM grade HG10 MNN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
23
Fatigue Strength, MPa 150
170
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 500
590
Tensile Strength: Yield (Proof), MPa 270
250

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Corrosion, °C 460
500
Maximum Temperature: Mechanical, °C 1100
990
Melting Completion (Liquidus), °C 1390
1420
Melting Onset (Solidus), °C 1340
1370
Specific Heat Capacity, J/kg-K 490
480
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 27
21
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.5
4.0
Embodied Energy, MJ/kg 65
58
Embodied Water, L/kg 210
160

Common Calculations

PREN (Pitting Resistance) 31
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
110
Resilience: Unit (Modulus of Resilience), kJ/m3 180
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
21
Strength to Weight: Bending, points 18
20
Thermal Shock Resistance, points 11
13

Alloy Composition

Carbon (C), % 0.2 to 0.6
0.070 to 0.11
Chromium (Cr), % 28 to 32
18.5 to 20.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 40.8 to 53.8
57.9 to 66.5
Manganese (Mn), % 0 to 2.0
3.0 to 5.0
Molybdenum (Mo), % 0 to 0.5
0.25 to 0.45
Nickel (Ni), % 18 to 22
11.5 to 13.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 0.7
Sulfur (S), % 0 to 0.040
0 to 0.030