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AWS ERTi-7 vs. AISI 436 Stainless Steel

AWS ERTi-7 belongs to the titanium alloys classification, while AISI 436 stainless steel belongs to the iron alloys. 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 AWS ERTi-7 and the bottom bar is AISI 436 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 20
25
Fatigue Strength, MPa 190
190
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
77
Tensile Strength: Ultimate (UTS), MPa 340
500
Tensile Strength: Yield (Proof), MPa 280
270

Thermal Properties

Latent Heat of Fusion, J/g 420
280
Maximum Temperature: Mechanical, °C 320
880
Melting Completion (Liquidus), °C 1670
1450
Melting Onset (Solidus), °C 1620
1410
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 21
25
Thermal Expansion, µm/m-K 8.7
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
2.8

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 47
2.7
Embodied Energy, MJ/kg 800
38
Embodied Water, L/kg 470
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
110
Resilience: Unit (Modulus of Resilience), kJ/m3 360
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 21
18
Strength to Weight: Bending, points 24
18
Thermal Diffusivity, mm2/s 8.8
6.7
Thermal Shock Resistance, points 26
18

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.12
Chromium (Cr), % 0
16 to 18
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
77.8 to 83.3
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
0.75 to 1.3
Niobium (Nb), % 0
0 to 0.8
Nitrogen (N), % 0 to 0.015
0
Oxygen (O), % 0.080 to 0.16
0
Palladium (Pd), % 0.12 to 0.25
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99.417 to 99.8
0