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AWS ERTi-7 vs. AISI 201LN Stainless Steel

AWS ERTi-7 belongs to the titanium alloys classification, while AISI 201LN stainless steel belongs to the iron alloys. There are 28 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 AWS ERTi-7 and the bottom bar is AISI 201LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 20
25 to 51
Fatigue Strength, MPa 190
340 to 540
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
77
Tensile Strength: Ultimate (UTS), MPa 340
740 to 1060
Tensile Strength: Yield (Proof), MPa 280
350 to 770

Thermal Properties

Latent Heat of Fusion, J/g 420
280
Maximum Temperature: Mechanical, °C 320
880
Melting Completion (Liquidus), °C 1670
1410
Melting Onset (Solidus), °C 1620
1370
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 8.7
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
2.9

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 47
2.6
Embodied Energy, MJ/kg 800
38
Embodied Water, L/kg 470
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
230 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 360
310 to 1520
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 21
27 to 38
Strength to Weight: Bending, points 24
24 to 30
Thermal Diffusivity, mm2/s 8.8
4.0
Thermal Shock Resistance, points 26
16 to 23

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 0
16 to 17.5
Copper (Cu), % 0
0 to 1.0
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
67.9 to 73.5
Manganese (Mn), % 0
6.4 to 7.5
Nickel (Ni), % 0
4.0 to 5.0
Nitrogen (N), % 0 to 0.015
0.1 to 0.25
Oxygen (O), % 0.080 to 0.16
0
Palladium (Pd), % 0.12 to 0.25
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 99.417 to 99.8
0