Sunday, November 30, 2014

F1554 Bolts Have Become An Industry Standard

By Ida Dorsey


Every project has many of its own peculiarities. The F1554 was first introduced in the early nineteen nineties. It covers all anchor bolts that were intended for structural supports to all foundations made with concrete. They can either be headed bolts, bent anchor bolts or straight rods.

The bent bolts have a right angle bend and are also unable to be pulled out. The threaded part is at one end and the L shape at the other. The hook is set into the concrete giving it extra anchorage. The headed bolts are actually turned and used upside down and inserted into concrete. The threads are showing and protrude from the concrete while the head is anchored well. A round plate is then welded to the head where extra strength is added.

The grading of the 36 is that it has low carbon with a ksi yield steel anchor. The 55 has a high strength capacity with low alloy and the 105 is heat treated and of alloy, also with high strength capacity. Supplementary testing will only be done when specifically asked when purchased.

This company perform all mechanical, hardness as well as revolving capacity testing in- house, and provide only products that are 100% fully traceable. They also give a very complete and precise certification packages which they store electronically. This makes sending out any extra copies very quick and easy.

This steel is different from the carbon one by the amount of chromium that is present. It is of a gray colour and is shiny, hard and easily broken. It has a high polish and is resistant to tarnish as well as having a high melting point to it. The symbol is Cr and the atomic number is 24 which is a proton number found in the nucleus of an atom in this element.

Rust or iron oxide helps to speed up corrosion by making more iron oxide. As this happens the outer edges of the exposed steel will flake and fall away leaving a much weaker structure behind. Chromium will form a covering which helps to prevent the spread into the inner structure.

Galvanising is a way of applying a zinc coating to the steel, aluminium or iron as a means of preventing rust from happening. The commonly used method is hot dip where they are immersed in a bath of molten zinc. The temperature will be as high as 460 degrees Celsius and when they are exposed to the air the zinc will respond to the oxygen. It will then form a zinc oxide which will further react with the carbon dioxide where it will form zinc carbonate.

In 1988 it was sold again and in 1992 they moved to a much bigger facility where they had 85 thousand square feet. They then bought back the hot dip galvanizing line. Other products that they manufacturer besides these are the u-bolts and tie rod assemblies. You will need to make sure that you have the right equipment for any project you are taking on, so why not use tools and bolts provided by true experts.




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