| Over the past century, stainless steel has arisen as | | | | metal, homeowners and businesses have chosen to |
| the first metal of choice for many applications. You | | | | incorporate stainless steel tools. One business has |
| will find stainless steel at the top of skyscrapers, in | | | | even commented, "Replacing carbon steel tools with |
| your sink and in your hands as you use tools and | | | | stainless steel tools eliminates this risk and should be |
| various other objects. But is stainless steel really all | | | | considered a standard operating procedure for any |
| that great? How does it compare to other metals? | | | | modern facility." [4] High-risk jobs require reliable tools |
| Here is some basic information about stainless steel | | | | that won't corrode or break during use. No one likes |
| to examine its worth and popularity compared to | | | | to find a tool rusted when it is needed for a |
| other metals. | | | | particular job in the house, and homeowners can't |
| What is stainless steel? | | | | afford to continually buy replacement tools. |
| Stainless steel may be defined as an alloy of iron and | | | | Hardware made of stainless steel benefits the user |
| carbon with a chromium content from 10.5 - 11.5%. | | | | with all the above qualities of stainless steel. Today |
| Metallurgists began working to form stainless steel in | | | | you can find stainless steel hardware from basic nuts, |
| the 19th century, but it was not until the early 20th | | | | bolts, screws and chain. You'll also find highly |
| century that stainless steel became mass-produced | | | | specialized and complex fittings and hardware used |
| and widely used. The chromium content is the secret | | | | for rigging and marine applications. |
| to the stain-resisting properties. When chromium | | | | What about other metals? |
| comes into contact with oxygen it creates a film | | | | One of the most common elements in the entire |
| called chromium oxide that encases the steel and | | | | universe is iron. Because of its abundance and |
| provides a sort of barrier against corrosion. | | | | relatively easy accessibility, iron has been a popular |
| Whenever the layer of chromium oxide is breached, | | | | metal for tools and various other objects for several |
| it will "self-heal" and continue to create another film | | | | millennia. Cast iron is used to make bicycles, machines |
| as the exposed chromium interacts with oxygen. | | | | and hardware. Yet, iron metals may break and are |
| Can stainless steel rust? | | | | easily susceptible to rust. Rusting takes place |
| Yes. It is important to note that while stainless steel | | | | whenever iron materials come into contact with |
| does strongly resist any form of corrosion, it is not | | | | oxygen and water (moisture). Because of this liability, |
| completely immune to corrosion and rust. While only | | | | rusted iron loses integrity and can become dangerous |
| gold and platinum are entirely impervious to corrosion, | | | | in critical situations. |
| stainless steel is the most economical choice for | | | | Nickel is a metal commonly used as an alloy. Even the |
| endless applications. The best way to prevent | | | | nickel as currency is 75% copper. Nickel is commonly |
| stainless steel from rust and corrosion is to keep it | | | | used as a metal in cast iron or even stainless steel. |
| clean. When kept clean, this steel can come into | | | | However, nickel is seldom used as a metal unto itself. |
| contact and withstand diverse environments and | | | | As was stated earlier, titanium stands out as one of |
| chemicals. Abrasive materials can break down the | | | | the only elements in nature that is of itself |
| ability of stainless steel to resist corrosion. Whenever | | | | completely rust resistant. Titanium is uniquely light, |
| cleaning an item made of stainless steel, refrain from | | | | durable and dent resistant. Yet, with all of these |
| using abrasive materials or brushes. Soft cloths and | | | | qualities, titanium needs to be refined and is not |
| various kinds of soap are recommended as long as | | | | normally produced in vast amounts. This results in |
| they do not contain chloride. | | | | high prices. Normally, titanium will be included in an |
| Stainless Steel Grades | | | | alloy such as stainless steel or aluminum. Sometimes it |
| The most common grades are 304 (18% chromium, | | | | will show up in watches or even wedding rings, but |
| 8% nickel) and 316 (16% chromium, 10% nickel, and | | | | again, only in small amounts because of supply and |
| 2% molybdenum. Grade 304 is the most versatile | | | | cost. |
| and widely used stainless steel. Originally it was called | | | | Zinc is another metal, like nickel, that is better applied |
| 18-8 because of its chromium and nickel content. | | | | in alloys. Often times it is used to coat other metals |
| Grade 316 has superior corrosion resistance and is | | | | for corrosion resistance. Architects increasingly |
| often referred to as the "marine grade stainless | | | | employ this material for its UV resistance, natural |
| steel" and is used in food and laboratory equipment, | | | | tones and corrosion resistance. |
| medical devices, threaded fasteners, and marine | | | | One of the most common and cheapest metals is |
| applications. Grade 302 has given way to 304 due to | | | | aluminum. When in its pure form, this metal is |
| availability and price but is still found in items such as | | | | relatively weak and impressionable, but when united |
| washers and springs. | | | | to other metals in alloys it becomes much stronger. If |
| How has it been used? | | | | aluminum is used for critical applications, it appears as |
| Stainless steel is perhaps one of the most broadly | | | | an alloy. Because this material is so light and cheap, |
| applied metals in the world today. One will find | | | | most large objects (cars, planes) that require a large |
| stainless steel in everything from buildings, to wrist | | | | metal structure incorporate aluminum as an alloy. |
| watches, from monuments to skate blades. In 1930 | | | | These metals (and a few others) each have their |
| the Chrysler Building in New York City was erected | | | | own particular benefits. Rarely will any of these |
| and capped with 302 grade stainless steel. A recent | | | | materials constitute a single object by themselves. |
| inspection of this building reveals the durability of | | | | Normally, objects are a composition or alloy of |
| stainless steel and its resistance to the elements as | | | | several of these metals. Even though stainless steel is |
| no corrosion or loss of thickness was found. The St. | | | | always composed of iron, carbon and chromium, it |
| Louis Arch is the largest man-made monument in the | | | | may have these other metals as well. All things |
| United States. The concrete arch is covered with | | | | considered, it should be noted that stainless steel as |
| nine hundred tons of stainless steel from top to | | | | such is a superior metal in a lot of ways. It is |
| bottom. [3] Ever since 1965 when the arch was | | | | extremely strong, stain resistant, and can be |
| completed, cleaning is the only maintenance the 603 | | | | fashioned to fit many different applications. |
| ft. monument has needed. | | | | While titanium and gold may be stronger and more |
| While the average person may not always have | | | | durable, their cost makes them an impractical material |
| contact with these two monumental structures, most | | | | for objects when stainless steel can accomplish the |
| people interact with stainless steel products every | | | | job with extreme efficiency and lower cost. The |
| day. Many household appliances from cabinets to | | | | growing popularity of stainless steel over the past |
| sinks to dishwashers consist of stainless steel. This | | | | century has not happened by accident. If you are |
| metal is chosen often in the kitchen because of its | | | | considering purchasing a tool, appliance or building a |
| durability and sharp aesthetic appeal with only the | | | | national monument, you should employ the superior |
| occasional cleaning necessary to maintain its look. | | | | qualities of stainless steel. Without a doubt, stainless |
| Stainless steel is not merely good for aesthetics, but | | | | steel is worth the extra cost as it returns years of |
| many tools are now made from stainless steel. | | | | durable service in whatever form it is used. |
| Because of the superior strength and durability of the | | | | |