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ASTM Grade LC9 Steel vs. EN 1.4988 Stainless Steel

Both ASTM grade LC9 steel and EN 1.4988 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM grade LC9 steel and the bottom bar is EN 1.4988 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
34
Fatigue Strength, MPa 420
230
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 660
640
Tensile Strength: Yield (Proof), MPa 590
290

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 430
920
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
23
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.3
6.0
Embodied Energy, MJ/kg 31
89
Embodied Water, L/kg 65
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
180
Resilience: Unit (Modulus of Resilience), kJ/m3 920
210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23
23
Strength to Weight: Bending, points 21
21
Thermal Shock Resistance, points 20
14

Alloy Composition

Carbon (C), % 0 to 0.13
0.040 to 0.1
Chromium (Cr), % 0 to 0.5
15.5 to 17.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 87.4 to 91.5
62.1 to 69.5
Manganese (Mn), % 0 to 0.9
0 to 1.5
Molybdenum (Mo), % 0 to 0.2
1.1 to 1.5
Nickel (Ni), % 8.5 to 10
12.5 to 14.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0
0.060 to 0.14
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 0.45
0.3 to 0.6
Sulfur (S), % 0 to 0.045
0 to 0.015
Vanadium (V), % 0 to 0.030
0.6 to 0.85