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Drum It Up! Steel Drum Industry News, Trends, and Issues

Posts Tagged ‘steel drum’

304 vs 316 Grade Stainless Steel Drums

November 5th, 2018 by Natalie Mueller

Filed under: Stainless Steel

By definition, stainless steel is a steel alloy with a minimum of 10.5% chromium content by mass. However, there isn’t just one kind of stainless steel. There are numerous grades of stainless steel all with variations in density, elasticity, thermal conductivity and other properties. When it comes to a stainless steel that must endure corrosive environments, which most stainless steel industrial containers must, austenitic stainless steels are the most popular choices. But even then, there are two popular grades: 304 and 316 stainless steel. So, what grade stainless steel drum is right for you?

304 stainless steel is generally the most common austenitic steel used due to it’s high nickel and chromium content. The high chromium content gives 304 stainless steel drums and other products excellent corrosion resistance.

316 stainless steel also has high amounts of chromium and nickel, but with a significant amount of molybdenum, grade 316 stainless steel possesses an even higher level of corrosion resistance.

What grade of stainless steel you need largely depends on your use. In the case of stainless steel drums, it largely depends on the materials you wish to contain or ship and any regulations governing those materials.

For example, while 304 is often used in commercial food processing, 316 is considered one of the most suitable choices for marine applications, medical devices and chemical processing or storage. 304 has better formability and is generally more affordable, but 316 may be a better choice when working with/containing corrosive environments or where greater strength and hardness are required.

At Skolnik, we know our steel and are happy to guide our partners to the most efficient and effective material and container for their needs.

The Five Families of Stainless Steel

June 28th, 2018 by Natalie Mueller

Filed under: Stainless Steel

At Skolnik we offer a host of steel containers — our stainless steel drums offer an ideal solution for products requiring the purity, compatibility and strength of stainless steel. But just like Skolnik offers different families of products, there are different families of stainless steel. Five to be exact: austenitic stainless steel, ferritic stainless steel, martensitic stainless steel, duplex stainless steel and precipitation hardening stainless steel. The families are classified by their crystalline structure.

 

Austenitic stainless steel is the largest family. About two thirds of all stainless steel produced falls into this category. Their crystalline structure is achieved by alloying with sufficient nickel and/or manganese and nitrogen. These stainless steels maintain their microstructure at all temperatures so they can’t be hardenable by heat treatment, but can be strengthened by cold working to an extent.

Austenitic stainless steel is great for formability and weldability, they are also essentially non magnetic. They’re often used for tanks, containers, storage vessels, architecture and the like.

 

Ferritic stainless steel has a structure more similar to carbon steel, contains between 10.5% and 27% chromium with very little or no nickel. Due to the chromium structure, ferritic stainless steel also holds its structure at all temperatures and is not hardenable by heat treatment. However, they are magnetic and are problematic to weld.

Welding creates microstructural problems so ferritic stainless steel is not used in the construction of large, heavy walled vessels and tanks and structures.

 

Martensitic stainless steels form a family that can be heat treated to provide the adequate level of mechanical properties. Martensitic stainless steels are magnetic and are less corrosion resistant than ferritic and austenitic due to a lower chromium content.

However, their high carbon content enables them to be significantly hardened so they are commonly used for knives, razor blades, cutlery and tools.

Duplex stainless steel’s structure is a combination of that of austenite and ferrite, usually at a 50/50 or 40/60 mix. It’s characterized by high chromium and molybdenum with lower nickel contents. The mixed microstructure results in higher resistance to chloride stress corrosion.

Duplex stainless steel can be difficult to weld properly, but can sometimes be a cost-effective solution for chemical processing, transport and storage, and marine environments.

 

Precipitation hardening stainless steel has corrosion resistance comparable to austenitic varieties but can be hardened to even higher strengths than martensitic steel. Precipitation hardening stainless steel is often used for gears, valves and other engine components, nuclear waste casks, and other pieces in aerospace and other high-tech industries.

 

Beyond that, there are over 150 grades of stainless steel.

Skolnik stainless steel drums are available in a variety of gauges and sizes and are stainless types 304 and 316, both austenitic, and 409, a ferritic stainless steel. And our products are built thicker, heavier and stronger than industry standards require.

 

New Regulations For U.S. Food Supply as The Food and Safety Modernization Act goes into Effect  

October 26th, 2017 by Natalie Mueller

Filed under: Industry News, Safety, Stainless Steel

The agricultural and manufacturing world is facing big changes as the rules set forth for the FDA’s Food Safety Modernization Act (FSMA) take effect in full, after the September deadline for mandatory compliance. The new standards will affect every part of the food processing and supply chain, including containers such as stainless steel process drums. FSMA According to the FDA, it will be the “most sweeping reform of our food safety laws in more than 70 years” and it “aims to ensure the U.S. food supply is safe by shifting the focus from responding to contamination to preventing it.”

Passed in 2011, companies began to abide by the act last September, after all of its rules were finalized. Now, the act’s year-long grace period is over, and the prevention-focus changes are officially the new status quo.

FSMA starts at the food facilities, including controls to evaluate hazards there, then requires the facilities to specify what steps, monitoring, and actions will be put into place to prevent them.

It then address moving the products with the Sanitary Transportation of Human and Animal Food Rule, a series of new regulations on vehicles and transportation equipment, operations, training, and records for the agricultural companies. One element of the rule is that, “The design and maintenance of vehicles and transportation equipment to ensure that it does not cause the food that it transports to become unsafe.”

Within FSMA there are a number of large, expensive adjustments that companies are making to how they operate, and it has thoroughly changed the landscape of the agricultural industry. For the first time though, the FDA will have a legislative mandate to require science-based preventive controls across the entire food supply, which seeks to reduce the frequency of foodborne diseases. Hopefully, the cost is worth the gain.

Skolnik is examining the impact of the FSMA on our products and company. At this time, our crevice-free stainless steel process drums are used extensively by our customers with exceptional demands for cleanliness.

The UN System for Dangerous Goods Packaging

August 10th, 2017 by Natalie Mueller

Filed under: DOT/UN, HazMat, Safety

Skolnik steel barrels are all UN tested for their contents/purpose. If a manufacturer or shipper fails to comply with UN standards, they could face hefty fines, litigation and more. It is always important for manufacturers to adhere to UN regulations, but for dangerous goods packaging the stakes are even higher because, in addition to a fine, failure to comply with UN standards for dangerous goods packaging could lead to a spill, disaster or contamination. But what does this mean? How does the United Nations affect packaging regulations?

The UN system for dangerous goods packaging is universally used and recognized. The system is used to classify, package, mark and label dangerous goods to facilitate their safe transport. All national and international regulations governing road, rail, sea and air transport are based on the United Nations’ system. With all manufacturers, suppliers and transport professionals following a single set of rules, the chances of contamination are greatly reduced.

The regulations dictate a minimum standard of performance. These performance standards are based on the intended contents of a package. Packages must exceed these standards before they can be authorized to contain and transport dangerous goods. The UN system starts with a sort of checklist of general criteria and specifications that the design of packages must meet. The packages then undergo rigorous physical testing before receiving UN certification.

At Skolnik, we pride ourselves in consistently engineering and manufacturing steel drums that exceed the UN certification criteria for dangerous goods and other uses. Our industrial packaging is designed and tested to be thicker, heavier and stronger than the industry standard, and our dangerous goods packaging is no different.