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EN 1.4404 Stainless Steel vs. ASTM Grade LC9 Steel

Both EN 1.4404 stainless steel and ASTM grade LC9 steel are iron alloys. They have 77% 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 EN 1.4404 stainless steel and the bottom bar is ASTM grade LC9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 43
22
Fatigue Strength, MPa 220 to 320
420
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 600 to 900
660
Tensile Strength: Yield (Proof), MPa 240 to 570
590

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 950
430
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
10

Otherwise Unclassified Properties

Base Metal Price, % relative 19
8.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.8
2.3
Embodied Energy, MJ/kg 52
31
Embodied Water, L/kg 150
65

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 210
140
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 800
920
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 32
23
Strength to Weight: Bending, points 20 to 26
21
Thermal Shock Resistance, points 13 to 20
20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.13
Chromium (Cr), % 16.5 to 18.5
0 to 0.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 62.8 to 71.5
87.4 to 91.5
Manganese (Mn), % 0 to 2.0
0 to 0.9
Molybdenum (Mo), % 2.0 to 2.5
0 to 0.2
Nickel (Ni), % 10 to 13
8.5 to 10
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.45
Sulfur (S), % 0 to 0.015
0 to 0.045
Vanadium (V), % 0
0 to 0.030