Archive for January, 2010

Steel Balustrades

Wednesday, January 27th, 2010

Steel Balustrades

Continuous Steel BalustradingThere are many materials to choose from when deciding what to make your staircase balusters from. They can be manufactured from glass, timber, stainless steel, wire and so on. Steel is a great material for balustrading since not only is it very durable but also looks beautiful.

Steel balusters can be rounded, sqaure, decorative, or horizontal. Stairking’s Horizon balustrades consists of solid steel horizontal and vertical bars that allows for spans that keep their openness. This can be accompanied by a square timber handrail, such as the warm Australian hardwood Victorial Ash, with concealed cut strings for a modern staircase. Another example of the way in which steel can be used is in tapered steel balusters that alternate between plain and decorative, along with a wreathing scroll timber handrail. Or the balustrading could be designed as a continuously wreathing and twisting feature supporting a curved timber handrail. Horizontal steel balustrades are also a possibility, great for curved and spiral staircases.

Properties of Steel

Steel BalustradesSteel is an alloy consisting mostly of iron, with a carbon content between 0.2% and 2.1% that acts as a hardening agent. The more carbon added, the stronger and harded the iron becomes, but also the less ductile and more difficult to weld. Different elements are added to the iron to change the properties of the steel alloy. So nickel and manganese can be added to increase tensile strength, chromium increases the melting temperature, while chromium is added to prevent corrosion. The strength and durability of steel makes it a great material for staircase balustrading.

Modern steelmaking began in 1858 with the discovery of the Bessemer process, enabling large amounts of steel to be produced cheaply. This was rendered obsolete in the 1950s with basic oxygen steelmaking, as oxygen pumped into the furnace limited impurities. Carbon steel (also known as mild steel), composed only of iron and carbon, makes up 90% of contemporary steel production, although many alloys exist.

Timber Balustrades

Wednesday, January 27th, 2010

Timber

TimberTimber is wood that has been felled. Timber is used for all sorts of purposes, from wood pulp for paper production to furniture, structural materials, tools, toys, artworks, weapons and so on. The two main types of timber are softwoods and hardwoods, although many materials are actually engineered wood products today.

Hardwood is sourced from angiosperm trees,  which are usually produce flowers, are broad-leaved, mostly deciduous in temperate latitudes or evergreen in the tropics.

Softwoods come from conifer trees, which tend to be evergreen. There are about a hundred times as many hardwoods as softwoods, and yet softwoods are used in about 80% of the world’s timber production. The traditional centres of softwood production are in the Baltic region and North America.  The reason softwoods are used so extensively is that it is easy to work with. There are fewer cells in softwood trees and yet they grow longer than hardwoods, making them usually soft. Hardwoods on the other hand have a more complex structure with vessels that vary in size, shape of perforation plates and structure of cell wall. Common hardwoods include the oaks, beech, ash, maple and cherry.

Timber Balustrading

Turned Timber BalustradesThere are many balustrade styles in which timber can be used. These include horizontal timber slats, outlook balustrades, turned timber balustrades, square timber balustrades, and combination balustrades. Stairking’s horizontal timber balustrades use stainless steel handrail fixed over stainless steel uprights, and tightly spaced horizontal timber slats. The Outlook balustrade is configured with two vertical stainless steel balusters at each end of a section, with horizontal timber rails as balustrades and a timber handrail.

The turned timber balustrades can use a traditional or modern style, accompanied by different types of scrolls, newel posts, carved or plain handrails, closed or open cut strings. The combination balustrade combines a rectangular timber balustrade with a feature balustrade, such as a double twist and basket steel baluster.

Iron Balustrades

Friday, January 22nd, 2010

What is Iron?

Wrought Iron BalustradesIron and iron alloys are the most widely used metals due to their low cost and high strength. Iron is metallic chemical element, classified as a transition metal. Although iron is the sixth most abundant element in the universe and the most abundant on Earth, it is rarely found in its pure form on the Earth’s surface. Iron oxidises easily in the presence of oxygen and moisture, so to obtain metallic iron oxygen must be removed from irons ores by chemical reduction. Then its properties can be modified by alloying it with various other metals to form steels.

Some of the more common iron alloys produced commercially include pig iron, cast iron, wrought iron, carbon steel and alloy steels. Pig iron is the intermediate step between iron ore and cast iron, with varying amounts of contaminants. Cast iron contains carbon, silicon and manganese and comes in ‘white iron’, ‘grey iron’ and ‘ductile iron’. The latter is specially treated with trace amounts of magnesium to increase the toughness and strength of the material. Wrought iron is a tough, malleable material that is not as fusible as pig iron. It is more corrosion resistant than steel. The main disadvantage of iron and its alloys will corrode and rust unless protected in some way, such as through painting, plastic coating or galvanisation.

Iron Balustrades

Iron BalustradesWrought iron balustrades can give your staircase or balcony a touch unlike any other material. Wrought iron can be manufactured in a variety of elegant designs that give instant style. Iron balustrades are build for strength and durability, but will give a classic look that will complement your home.

Installing iron balustrades also have the additional benefit of ensuring the safety of your family. Unlike glass which can break, or timber which can disintegrate over time, wrought iron is very sturdy and will last. Finally, wrought iron balustrades can be used both internally and externally for staircases, balconies, porches, fences and more.