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ASTM Grade LC3 Steel vs. S17700 Stainless Steel

Both ASTM grade LC3 steel and S17700 stainless steel are iron alloys. They have 78% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM grade LC3 steel and the bottom bar is S17700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
180 to 430
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 27
1.0 to 23
Fatigue Strength, MPa 230
290 to 560
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 570
1180 to 1650
Tensile Strength: Yield (Proof), MPa 310
430 to 1210

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 410
890
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
15
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
13
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.7
2.8
Embodied Energy, MJ/kg 23
40
Embodied Water, L/kg 52
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
15 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 260
460 to 3750
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
42 to 59
Strength to Weight: Bending, points 19
32 to 40
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 17
39 to 54

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.5
Carbon (C), % 0 to 0.15
0 to 0.090
Chromium (Cr), % 0
16 to 18
Iron (Fe), % 94.4 to 96.5
70.5 to 76.8
Manganese (Mn), % 0.5 to 0.8
0 to 1.0
Nickel (Ni), % 3.0 to 4.0
6.5 to 7.8
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.045
0 to 0.030