Assume that a thin-walled cylindrical container with a radius of 65 mm and a length of 1 m should used to transport gas under pressure. Internal pressure is 10.13 MPa and external pressure is 0.2026 MPa. Calculate the required thickness and cost in US dollars for each of the alloys in the table below. Use a safety factor of 3.5.

Welding: Principles and Applications (MindTap Course List)
8th Edition
ISBN:9781305494695
Author:Larry Jeffus
Publisher:Larry Jeffus
Chapter26: Welding Metallurgy
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Assume that a thin-walled cylindrical container with a radius of 65 mm and a length of 1 m should
used to transport gas under pressure. Internal pressure is 10.13 MPa and external pressure is
0.2026 MPa. Calculate the required thickness and cost in US dollars for each of the alloys in
the table below. Use a safety factor of 3.5.

Alloy
Steel (plain)
Steel (alloy)
Cast iron
Aluminum
Magnesium
Yield Strength, Gy
(MPa)
375
1000
225
275
175
Density, p
(g/cm³)
7.8
7.8
7.1
2.7
1.80
Unit Mass Cost,
(SUS/kg)
1.65
4.00
2.50
7.50
15.00
Transcribed Image Text:Alloy Steel (plain) Steel (alloy) Cast iron Aluminum Magnesium Yield Strength, Gy (MPa) 375 1000 225 275 175 Density, p (g/cm³) 7.8 7.8 7.1 2.7 1.80 Unit Mass Cost, (SUS/kg) 1.65 4.00 2.50 7.50 15.00
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