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AWS ERTi-7 vs. EN 1.4961 Stainless Steel

AWS ERTi-7 belongs to the titanium alloys classification, while EN 1.4961 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 EN 1.4961 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 20
39
Fatigue Strength, MPa 190
190
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
76
Tensile Strength: Ultimate (UTS), MPa 340
610
Tensile Strength: Yield (Proof), MPa 280
220

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Maximum Temperature: Mechanical, °C 320
890
Melting Completion (Liquidus), °C 1670
1430
Melting Onset (Solidus), °C 1620
1390
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 21
16
Thermal Expansion, µm/m-K 8.7
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
2.5

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 47
4.0
Embodied Energy, MJ/kg 800
57
Embodied Water, L/kg 470
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
190
Resilience: Unit (Modulus of Resilience), kJ/m3 360
120
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 21
22
Strength to Weight: Bending, points 24
20
Thermal Diffusivity, mm2/s 8.8
4.3
Thermal Shock Resistance, points 26
14

Alloy Composition

Carbon (C), % 0 to 0.030
0.040 to 0.1
Chromium (Cr), % 0
15 to 17
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
65.6 to 72.3
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0
12 to 14
Niobium (Nb), % 0
0.4 to 1.2
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 0.035
Silicon (Si), % 0
0.3 to 0.6
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 99.417 to 99.8
0