Naked A606 type 4 is COR-10™ LCA Here!

COR-10™ (our trade name) for A606 type 4  produced in America that meet or exceed our ‘green steel” check list.

A606 type 4 is a cold roll product with additional high strength alloys that create a corosive barrier as the steel oxidizes to this deep red cinnamon color.

It is so beautiful we don’t know why anyone would use a painted product. It is maintenance free. No painting, sand blasting, acid washing, no paint flaking, no chalk, no fade. Mother Nature does all the work…Naturally!

Want the Life Cycle of our Cor-10™ here it is:

Lifecycle or estimated sustainability of COR-10™ Bare Naked Steel™ A606 type 4 made in the USA.

From the scientific studies provided in the ASTM G101-97 and ASTM G101-01 for ASTM A606 Type 4 COR-10™ pass the corrosion indexes. The result is based on the math is that 22 GA A606 Type 4 COR-10™ meets The ASTM A606 type 4 and G101 specifications will have a lifetime in excess of 119 years based on the scientific mathematical data detailed in the ASTM G101-97 and ASTM G101-01 data as detailed below.

The 1997 version and the 2001 version use data provided by Larrabee-Coburn[1] in addition to scientific methods from Legault,R.A., and Leckie H.P.,[2].  See page 7 and 8 of ASTM guide. This is indicated in Items 6.3 –which is the predictive method based on steel composition. Based on a rural environment the results reflect the following: *All information is in micrometre.

The result based on the math is that COR-10™ 22 GA A606 Type 4 ASTM A606 type 4 and G101 specifications will have a lifetime in excess of 119 years in rural environments.

The gauge thickness for 22 GA ranges from (.0269-.029) which would comprise of 700 micrometres.

The penetration loss for ASTM A606 (ASTM A242 for A606 Sheet) based on the scientific mathematical data attached:

• 167 um(micrometre)[3] in a 50 year period which would represent a 23% loss or penetration.
• Further methods under Guide 16 (UCL) upper confidence limits provide a 250 um (micrometre) loss in 119 years. The first page (page 5 of ASTM G101) is the written scientific method and the loss based on the results done by Larrabee, Coburn, Legault and Leckie.  The second page (page 6 of ASTM G101) is a graph, which is a reflection of the written methods.

ASTM A606 TYPE 4 ADDITION TO ORIGINAL DOCUMENT

ASTM A606 Type 4 requirements require Tensile Requirements for Cold-Rolled Material.  Table 3 identifies those requirements as follows:

Tensile Strength, min, ksi              65

Yield Strength, min, ksi                 45

Elongation in 2 in or 50 mm         22

This is identified on page 2 of the ASTM A606 Type 4 Requirements.  Additionally items 7.1.1 through 7.14 and 7.2 detail the testing process in order to acquire the minimum Tensile Strength, Yield Strength and Elongation.

Original MTR (Metallurgical Test Reports) will provide this information.

If there is not an original mill certification based on the actual coil that produces the material there cannot be evidence that the material meets those requirements.

See ASTM guide table and documentation (ASTM A606 Type 4) Requirements.

REQUIREMENTS TO MEET ASTM G101 (GUIDE 101)

Item 6.2 on page 2 of the ASTM A606 Type 4 states that in order for material to meet A606 Type 4 steel, the basis for this evidence can be a corrosion resistance index calculated from the chemical composition of the steel in accordance with Guide G101 (ASTM G101)

See ASTM guide, paragraph in item 6.2 of the ASTM A606 Type 4 Requirements.

ASTM G101 METHOD FOR CORROSION LOSS 1997 VERSION AND 2001 VERSION

ASTM G101-97 and ASTM G101-01 are the Standard Guide for Estimating the Atmospheric Corrosion Resistance of Low-Alloy Steels.  These guides provide scientifically proven methods for thickness loss of High Strength Low Alloy steels, such as ASTM A606 Type 4 (ASTM A242-sheet version).

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[1] ASTM G 101-1, Larrabee, C.P, and Coburn, S.K., “The Atmospheric Corrosion of Steels as Influenced by Changes in Chemical Composition,” First International Congress on Metallic Corrosion, Buttersworths, London, 1962, pp. 276-285

[2] Legualt, R.A., and Leckie, H.P., “Effect of Composition on the Atmospheric Corrosion Behavior of Steels Based on a Statistical Analysis of the Larrabee-Coburn Data Set,” Corrosion in Natural Environments, ASTM STP 558, ASTM 1974, pp 334-3347

[3] http://en.wikipedia.org/wiki/Micrometre

More about our Steel.

Cor-10™ steel is produced in a facility using an electric arc furnace or EAF instead of blast oven or BOF. An EAF uses 60% less coal and that equals a huge reduction of the “carbon foot print” the mill has. It is our opinion that there is no such thing as clean coal so reducing the use of coal is a green hot issue.

The bottom line is, we Americans have to support American Mills, the “Buy American Act” is serious business and it is essential that American’s insist on American Manufactured Steel. Anything else creates a huge hole in our economy as well as a death wish for our environment.

What is “Corten”? “Corten” is just a name….it is a term and it is a US Steel Trademarked name for a type of steel that would oxidize but no one really knows the chemical compounds that US Steel used. US Steel no longer produces the material.  The name is associated with A606 Type 4 but a rose by this name is NOT THE SAME!

What is ASTM and how does it determine A606 type 4?

The American Society for Testing and Materials (www.astm.org) provides the ASTM standards for A606 type 4 and only USA meets the ASTM standards.  These standards must be met to ensure the products quality, safety, chemical and technical specifications are accurate. Foreign steel products do not meet or recognize the ASTM.

Any other product is a “knock off” and is often produced off shore (China, India, or some other third world country). Meaning there is no standard, no guideline, no ASTM, EPA, OSHA and even though you may pay less…you will pay more in the end when the product fails and your clients regard you and your company as con-artists!

Our COR-10™ is ASTM A606 type 4 as specified 100% .

COR-10™ is manufactured by the only American mill that uses 100% domestic scrap, is recognized by the EPA and OSHA for their commitment to Environmental practices and is a strong advocate for American manufacturing, green jobs and carbon & heat recapture technology! COR-10™ is the Greenest Steel in the world! Our steel is verifiable by heat and coil numbers as proof that this material is meets our Eco-Smart™ Certification.

Real Recycled Content: Bare Naked Cor-10™ has 8.6% pre-consumer and 56.8 post consumer recycled content which gives our product a minimum of 68% to 70% combined total scrap content. All steel is 100% recyclable after use.

Scrap Reality: Bare Naked Cor-10™ uses 100% domestic scrap. This is a huge factor. Most all mills buy scrap from all over the world. In reality the US sells its scrap to China, India, Brazil ect…and then the US mills buy it back as a billet. A billet is a huge cake like brick of steel. It is made up of scrap that has been smelted and mixed with ore. The processes of smelting and mining in foreign countries are atrocious and contribute to over 10% of the world’s industrial pollution. We know of only one mill-the one we buy from in the USA that depends entirely on US scrap!

The Price: The price of steel is directly determined by the price of scrap on the commodity market. If the scrap is domestic that means it came from American scrap yards. These scrap yards play a huge role in the American steel economy. Scrap is made form all kinds of metal but mostly automotive. Those crushed cars, trucks; buses are the first link in the supply chain. They were once driving our roads, providing Americans jobs and driving our kids to schools. Then they become a commodity for the steel business. It is the first link! Selling  scrap offshore and buying it back as a billit is BAD!

Want to know even more? Alan Bendawald is an Expert in Steel, he has formulated the math in the ASTM and G101 standards to pin point life expectancy as well as helped numerous roll formers, fabricators buy smarter and streamline their purchasing practices.

His counsel is available for attorneys, architects, contractors, insurance adjusters, inspectors and home owners. Contact him directly for fees.

Alan Bendawald, Chief Operations Officer

602-402-8969

Alan@steeliq.com