Because of its high flame temperature of 2925 C (5300 F) in oxygen, genuine MAPP gas can be used in conjunction with oxygen for heating, soldering, brazing, and even welding. Although acetylene has a higher flame temperature (3160 C, 5720 F), MAPP has the advantage of requiring no dilution or special container fillers during transportation, allowing a larger amount of fuel gas to be transported at the same weight, and it is considerably safer in use.
Due to the high concentration of hydrogen in the flame higher than acetylene but lower than any of the other petroleum fuel gases a MAPP/oxygen flame is not totally suitable for welding steel. The hydrogen corrodes the welds by infusing itself into the molten steel. This is not a severe concern for small-scale MAPP welding because the hydrogen escapes rapidly, and MAPP/oxygen can be utilized to weld small steel pieces in practice.
Underwater cutting, which necessitates high gas pressures, MAPP/oxygen was shown to be beneficial (under such pressures acetylene can decompose explosively, making it dangerous to use). Underwater oxy/fuel gas cutting of any kind, on the other hand, has mostly been supplanted by exothermic cutting, which is faster and safer.
MAPP gas is also utilized in air combustion for brazing and soldering, where its higher combustion temperature of 2,020 C (3,670 F) in air gives it a modest edge over rival propane fuel.
The most significant disadvantage of MAPP gas is its high cost, which is typically one-and-a-half times that of propane at the refinery and up to four times that of propane at the consumer level. It is no longer widely utilized in any large-scale business; for bigger users, acetylene/oxygen is more cost-effective than MAPP/oxygen when high flame temperatures are required, and propane/air is more cost-effective when significant amounts of overall heating are required.
A MAPP/oxygen flame, on the other hand, is still extremely desired for small-scale users, as it has higher flame temperatures and energy densities than any other flame other than acetylene/oxygen, but without the hazards and hassles of acetylene/oxygen. It comes in handy for jewelers, glass bead makers, and a variety of other craftspeople. The high heat capacity of the MAPP/air flame is particularly valued by plumbers, refrigeration and HVAC experts, and other craftsmen; MAPP was frequently utilized until recently, and was provided in small to medium size containers.
Blowtorches are used to brown and sear food cooked sous-vide at low temperatures. MAPP gases should be used instead of cheaper butane or propane, according to Myhrvold’s Modernist cuisine: the art and science of cooking, since they create greater temperatures with less chance of giving the dish a gas flavor, which can occur with incompletely combusted gas.
Why isn’t MAPP gas available anymore?
MAPP gas was a trademarked term for a fuel gas based on a stabilized blend of methylacetylene (propyne), propadiene, and propane owned by The Linde Group, a branch of the defunct global chemical giant Union Carbide. The original chemical composition, methylacetylene-propadiene propane, inspired the name. The term “MAPP gas” is also commonly used to refer to UN 1060 stabilized methylacetylene-propadiene (unstabilised methylacetylene-propadiene is known as MAPD).
MAPP gas is often recognized as a safer and more convenient acetylene replacement. True MAPP gas production in North America came to an end in early 2008 when the single surviving facility in the country stopped producing it. However, many current “MAPP” goods are actually MAPP replacements. These variants are virtually entirely made of propylene, with minor propane impurities (
What makes MAPP gas different from propane gas?
MAPP and propane are two significant fuel gases. The main distinction between MAPP gas and propane is that MAPP gas is made up of propyne, propane, and propadiene molecules, whereas propane is made up of propane molecules. Some attributes, such as flame temperature, burning temperature, energy, content, and odor, are also different.
1. Eric Hahn. “Eric Hahn.” ELGAS LPG Gas for Home & Business. Uses of LPG Propane Uses ELGAS LPG Gas for Home & Business. This is where you can get it.
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Triddle – Own work (Public Domain) through Wikimedia Commons
MAPP gas vs propane: which is hotter?
Now that we’ve explored propane gas and MAPP gas individually, let’s compare the fuel types side by sidepropane vs MAPP gasbased on a few key factors:
Safety
It’s general knowledge that any form of gas, due to its extreme flammability, necessitates extra caution. In this case, one sort of gas poses a greater risk than the other. Extreme MAPP exposure, according to the National Institute for Occupational Safety and Health (NIOSH), is instantly harmful to life and health (IDLH).
Propane gas, on the other hand, is not harmful to human health. Because of its safety, even the United States Department of Agriculture promotes propane gas grills. Propane gas is the clear winner in terms of safety. Regardless, if you’re careful enough, you can utilize MAPP gas without issue.
Temperature
Now let’s compare the temperatures of MAPP gas and propane; is MAPP gas hotter than propane? Yes is the correct response. MAPP gas has a maximum temperature of 3,730 F, whereas propane has a maximum temperature of 3,600 F.
Is MAPP gas safe to use in a propane torch?
You must use a “Turbo-Torch” when working with MAPP gas; you cannot use a propane torch head. I use a Bernzomatic self-igniting burned head that came with MAPP bottles, and it has worked flawlessly with propane. Going in the opposite direction will not work. MAPP gas will not work with a propane-only torch head.
How long does a MAPP gas bottle last?
It lasted approximately 3-4 hours for me. If you have a long beadmaking session, the bottle will cool down and condensation will form inside, causing the flame to fade. To melt the ice, I used to immerse the bottom of the bottle in a bucket of hot water, and the flame became larger.
Additionally, as you near the end of your tank, the flame will begin to fade. To avoid running out of gas in the middle of a big and intricate bead, I used to organize my sessions so that I pul stringer and work on little beads toward the end of the flask.
I’ve switched to a bulk tank. It’s more effective. It does not freeze and has a longer shelf life. It’s also a little less expensive.
MAPP or acetylene: which is hotter?
To many contractors and experts, the Mapp gas solution appears to be far superior at first appearance. The higher temperature of the oxygen-acetylene rig, on the other hand, is a critical element that should not be neglected.