What are Gases for Oxyfuel Welding - Acetylene - MPS - Hydrogen - Definition

Gases for Oxyfuel Welding. A common gases are: Acetylene – Oxygen, Stabilized methylacetylene-propadiene (MPS), Hydrogen – Oxygen.

The most common gas welding process is oxyacetylene welding. The equipment is relatively inexpensive and simple, generally employing the combustion of acetylene in oxygen to produce a welding flame temperature of about 3100 °C. Pure oxygen, instead of air, is used to increase the flame temperature to allow localized melting of the workpiece material. The temperature at which it burns is a function of the amount of oxygen present in the gas mixture.

Gases for Oxyfuel Welding

A common gases are:

Acetylene – Oxygen. Compared with other fuel gases, oxyacetylene can produce the hottest and most concentrated flame. The oxyacetylene flame also produces carbon dioxide, which serves as a shielding gas. Oxyacetylene flame burns at about 3,773 K (3,500 °C; 6,332 °F). As a fuel acetylene’s primary disadvantage, in comparison to other fuels, is high cost.
Stabilized methylacetylene-propadiene (MPS) has the storage and shipping characteristics of LPG and has a heat value a little lower than that of acetylene. MPS is recommended for cutting applications in particular, rather than welding applications.
Hydrogen – Oxygen. Hydrogen has a clean flame and is good for use on aluminium. It can be used at a higher pressure than acetylene and is therefore useful for underwater welding and cutting. It is a good type of flame to use when heating large amounts of material. Hydrogen is not used for welding steels and other ferrous materials, because it causes hydrogen embrittlement. Oxyhydrogen flame burns at 3,073 K (2,800 °C; 5,072 °F).

References:

Materials Science:

U.S. Department of Energy, Material Science. DOE Fundamentals Handbook, Volume 1 and 2. January 1993.
U.S. Department of Energy, Material Science. DOE Fundamentals Handbook, Volume 2 and 2. January 1993.
William D. Callister, David G. Rethwisch. Materials Science and Engineering: An Introduction 9th Edition, Wiley; 9 edition (December 4, 2013), ISBN-13: 978-1118324578.
Eberhart, Mark (2003). Why Things Break: Understanding the World by the Way It Comes Apart. Harmony. ISBN 978-1-4000-4760-4.
Gaskell, David R. (1995). Introduction to the Thermodynamics of Materials (4th ed.). Taylor and Francis Publishing. ISBN 978-1-56032-992-3.
González-Viñas, W. & Mancini, H.L. (2004). An Introduction to Materials Science. Princeton University Press. ISBN 978-0-691-07097-1.
Ashby, Michael; Hugh Shercliff; David Cebon (2007). Materials: engineering, science, processing and design (1st ed.). Butterworth-Heinemann. ISBN 978-0-7506-8391-3.
J. R. Lamarsh, A. J. Baratta, Introduction to Nuclear Engineering, 3d ed., Prentice-Hall, 2001, ISBN: 0-201-82498-1.

See above:
Welding

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