So, what do these athletes from all over the world competing in various different sports have in common? They all rely on steel to enhance their performance and keep them safe while they compete for the highest honors in their profession.

Here are some of the most prominent ways steel plays its part in winter Olympic sports:

Blades/Edges of Steel

Ice Hockey

Ice hockey is easily the main attraction of winter Olympics as hockey finals are usually the last events of the Games. The same can be said of para ice hockey as well. Athletes glide through the rink on specially-made sledges, or sleds, and have as much, if not more, full-contact than regular ice hockey.

Stainless steel is the material of choice for ice hockey skate blades. (Source: FXBX)

There are several pieces of equipment that enable hockey players to perform at their best, including their skates and sleds. The deciding factor in the quality of skates comes down to the type of steel used in the blades, or runners. Harder types of steel are preferred for less wear and tear and so that athletes do not have to sharpen the blades too often.

That’s why most opt for stainless steel, for its high-strength, hard, ductile and corrosion-resistant qualities. For para ice hockey players, their sleds make or break the game, and materials like magnesium, high-manganese anti-vibration steel and stainless steel give them the edge they need.

SEE ALSO: How POSCO’s Advanced Technology Gives Speed to Korea’s Para Ice Hockey Team

Figure Skating

Blades on figure skates look similar to that of hockey skates, but are longer and heavier. Figure skate blades also have the thickest type of blades at 4 to 5mm. These blades were most commonly made of tempered carbon steel coated with chrome, but lighter materials such as stainless steel are becoming more common. At the professional level, many athletes wear skates with high-grade steels that are much more expensive than common skates. A distinct characteristic of these blades is the spiked front toe which gives figure skaters the traction they need for rigorous jumps and spins.

Figure skates have spiked toes to assist jumps and spins. (Source: Bend Source)

Short and Speed Skating

Like blades for hockey and figure skates, short track and speed skates are also made of stainless steel. Short track skates are slightly curved and shorter than speed skates, with slightly rounded backends for safety.  

Figure skates have spiked toes to assist jumps and spins. (Source: International Skating Union)

Speed skates are different from those for short track because the back-end of the blade is detached from the boot. this reduces friction and energy loss. Also, the detached blade allows the blade to remain attached to the ice longer than attached blades.

Skiing and Snowboarding

Steel also plays a crucial part in the construction of ski and snowboard edges. With high-quality steel, athletes can sharpen the edges more frequently, and sharp edges are crucial for carving and turning on snow. Edges are most commonly made of stainless steel, and they are inserted into the body of the ski or snowboard via “teeth” or T-shaped ridges. Most edges have a Rockwell 48 hardness.

Ski and snowboard edges are made of steel to achieve maximum sharpness. (Source: YouTube)

Rock-hard Skeleton, Ultra Sharp Blades

Bobsled

There are several variations of bobsled events during the Olympics: 2-man, 4-man and women’s doubles. No matter how many people are on a team, each bobsled has a steel chassis or skeleton and four steel blades attached to the bottom of the sleds. Every team must use the same type of steel for blades used in competition. Much like a car, materials that make up the bobsled must be lightweight yet strong so the athletes have the freedom to steer through the track. During competition, sleds slide through at an average speed of 150 km/hr.

Ski and snowboard edges are made of steel to achieve maximum sharpness. (Source: Lake Placid)

SEE ALSO: Ask an Expert: How POSCO GIGA STEEL Frames the G4 Rexton

Luge

The luge is considered to be the most dangerous winter Olympic sport due to high speeds and sharp turns of the track. After push off in a seated position, the person or pair lies flat on their backs and steer the sleds with their bodies. Sleds have a pair of steel blades attached to the bottom. Olympic rules prohibit teams from heating the blades before competition as it would decrease friction against ice. Instead, athletes try to maintain the sharpest blades possible.

The Luge is one of the most dangerous winter Olympic sports. (Source: Team GB)

Skeleton

Opposite of the luge, skeleton athletes race flat on their stomachs, with no brakes. Instead of starting on the sled, the athletes have to sprint for about 40 meters before hopping on. All skeleton sled frames must be made of steel, and blades are usually made of high-quality stainless steel. As for all the “sliding” sports, there are strict rules for the size and weight of the sleds.

Skeleton athletes sprint 40 meters before jumping on their sleds stomach first. (Source: MPR News)

Since 2014, sales of products combined with Solution Marketing have tripled, and sales of POSCO’s World Premium Products (WPP) have increased by 56 percent.

It Wasn’t Always Smooth Sailing

When the 2008 global financial crisis hit, the global economy as a whole suffered. The steel industry experienced stagnant growth, even in its subsequent recovery. From 2012 to 2016, annual steel sales remained fixed at 35 million tons.

The 2008 Financial Crisis was felt in markets all over the world. (Source: South China Morning Post)

The main culprit for the slow recovery was overproduction, mostly from the heavily-subsidized Chinese steel industry. Between 2000 and 2014, steel production doubled from 800 million to 1.6 billion tons, exceeding the global demand for steel by 100 million tons.

As a result, steel markets around the world saw prices falling, layoffs and steel mill closures.

SEE ALSO: Asian Steel Watch: Megatrends Shaping the Future of the Steel Industry

A Strategy for Success

In order to stay competitive in a stagnant market, POSCO made the decision to focus on Solution Marketing and the sales of its World Premium Products (WPP) such as POSCO GIGA STEEL for cars and PosMAC for solar panels.

Solution Marketing involves hyper-customization for POSCO’s partners to deliver optimal material solutions for their products. Some notable projects this year have been with automakers GM Korea and Ssangyong Motors for the launch of their new models made of POSCO GIGA STEEL. POSCO gave them full support from development and R&D to testing and post-production evaluations, redefining the role of a steel supplier.

GM Korea and POSCO worked together to incorporate POSCO GIGA STEEL into the 2017 All New Chevy Cruze. (Source: GM Korea)

As a result, POSCO’s operating profit margin (individual basis) was 10.8 percent in 2016, making it one of the highest performing steel companies in the world. Its recovery and growth continued into 2017.

SEE ALSO: 6 Reasons Why POSCO GIGA STEEL is Ideal for Automakers

Cultivating the Industry

Following its continued success with Solution Marketing, POSCO is now determined to share its insights and technology with up and coming small and medium-sized enterprises (SMEs). POSCO has completed 32 shared-growth projects through which they work with SMEs to develop ways to cut costs, improve the quality of their work, provide financial assistance and education and training.

One of the most recent projects for shared growth is a collaborative business model called “System Construction” that provides a framework for effective technical cooperation among POSCO’s partners in the construction industry. The model was developed jointly with NI Steel and entails systemizing composite materials such as beams, floor decks, exterior panels and roofing materials, all based on joint R&D from both parties.

Under System Construction, workers from various sectors come together for joint development.

POSCO is continuing its efforts to advance its competitiveness by providing material and technical solutions to its partners, and along the way, fostering the growth of SMEs in various industries to ensure a more stable and robust economy.

Ssangyong Motors G4 Rexton (Source: Ssangyong Motors)

A notable feature of the G4 is its quad frame body on chassis made of POSCO GIGA STEEL. These days, most SUVs opt for a monocoque frame because it requires less materials, and thus is lighter. However, Ssangyong chose to stick with their signature frame body to enhance safety and driving performance. In order to achieve high strength without adding extra weight, they applied POSCO GIGA STEEL to 81.7 percent of their frame.

The Steel Wire spoke to Ssangyong Motors Senior Researcher Shim JaeHong for an inside look at the 42-month development process worth 380 billion won and their cooperation with POSCO.

Ssangyong Motors Senior Researcher Shim JaeHong

Q. How did you first decide to apply POSCO GIGA STEEL to the G4 Rexton?

When I first heard about the product, I was very impressed and knew that it would fit well with Ssangyong Motors’ philosophy of safety first. The only concern I had was moldability, a common problem with previous materials. I didn’t know if POSCO GIGA STEEL could be molded into the right parts for our frame.

Thankfully, POSCO had a very collaborative approach and we conducted joint research from the beginning to come up with the right solutions. POSCO also helped with shape and structure analysis for the final product and even suggested the best materials for each part. In the end, POSCO took care of our material burdens and saved us time and money along the way.

Q. Most vehicles these days have a monocoque chassis. Why did Ssangyong choose to stick with the body-on-frame chassis for its new G4 Rexton?

We went with the body-on-frame chassis because safety has always been the top priority for Ssangyong Motors. Plus, we believe that in order to have a genuine SUV, you need to have a body-on-frame chassis. Our consumers also acknowledge this, so we didn’t want to compromise on that.

The base of the G4 Rexton quad frame (Source: Ssangyong Motors)

Q. Ssangyong emphasized the quad frame during the G4 Rexton’s release. What is different about the quad frame versus previous frames?

The biggest difference was that POSCO GIGA STEEL was applied to 81.7 percent of the entire frame. As a result, even though we added material to the cross section of each component, we were able to minimize the increase in weight. Especially for crash energy absorption, we applied a quad structure to the frame which lead to a 5-star rating for collision safety from the KNCAP. The G4 also has the best NVH (noise, vibration, harshness) rating of all previous models.  

Q. How were you able to apply a quad structure to your frame without adding on weight?

POSCO GIGA STEEL was the material solution for our quad frame. Thanks to the quad frame, we were able to further reduce the weight of other parts. In particular, the application of high-strength steels allowed us to greatly reduce the thickness of parts without compromising safety in any way. The quad frame actually turned out to be lighter than or equal in weight of the monocoque chassis of other companies.

Q. What was the greatest technical challenge for you during the development process?

As mentioned before, moldability is always a challenge to get materials into the right shapes for different parts of our frame. It is possible to increase formability by using hot press forming or roll forming methods. The problem is, it takes a lot of time and money and the increased cost of production means a higher price on the final product for consumers.

This is why POSCO’s early involvement was crucial. Together, we were able to simplify the shapes of the applied parts as much as possible, optimize its thickness and came up with a way to apply conventional pressing methods to shape the parts. Again, this was crucial for us in saving time and costs.

Q. As a customer of GIGA STEEL, what can you say about the potential for growth and development for the product?

In the future, cars will face more and more demanding regulations regarding the environment, safety and performance. The use of advanced high-strength steel plates is inevitable in order to meet those new laws and regulations. That being said, I think GIGA STEEL will be used for more auto parts than now.

Q. Are there any additional projects you would like to pursue with POSCO?

So far, we have been able to find innovative solutions to technical challenges in our partnership. Going forward, I would like to collaborate on technology to cold form complex steel parts. The cost-effective and time-saving technology will benefit both POSCO and Ssangyong Motors mutually.

If our companies maintain a collaborative relationship that surpasses traditional supply-demand roles, I believe we will continue to develop innovative materials and improve cost-efficiency. I think it will be a chance for both companies to make huge advancements.

Ssangyong Motors is one of many automotive partners POSCO works closely with, including GM Korea and Renault Samsung Motors. POSCO GIGA STEEL is a breakthrough solution that allows automakers to meet stringent regulations, save costs and enhance performance. Matched with POSCO’s Marketing Solution 2.0, POSCO will continue to play a vital role as a partner to automakers and the successful sales of their vehicles.

Cover image source: Ssangyong Motors

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Increasing Safety Requirements Demand Stronger Steel

With an increasing awareness about car safety – governments and regulatory agencies have been passing stricter safety regulations for autos. At the same time, consumers began demanding better protections, and car makers began building safer vehicles. While there are many factors to consider in building a safer car – airbags, seatbelts, glass type – the crashworthiness, or structural integrity, of the car’s body frame is one of the most critical.

In 1975 the average vehicle was manufactured with 55.9% mild steel and just 3.6% medium and high strength steels. By 2007, the percentage of medium and high strength steels used in an average car had increased by more than 230%. In the seventies, steel companies simply did not have the technology to make the steel that they can produce today because while it was strong, it was brittle and difficult to work with. Today, innovations in steel technology have given car makers the ability to use a variety of advanced high-strength steels (AHSS) that exceed 1,000MPa – meaning it can withstand more than 100 kilograms-force per square millimeter – because they are both strong and formable.

To demonstrate how far we come in terms of building stronger, safer vehicles, watch this crash test performed by the IIHS for their 50th anniversary with a 1959 Chevrolet Bel Air and a 2009 Chevrolet Malibu.

POSCO GIGA STEEL, the Industry’s New Standard for Strength and Formability

With a tensile strength of more than 1,000MPa, POSCO GIGA STEEL falls in the strongest categories of steel available to auto manufacturers today. In addition to providing the strength needed to meet safety regulations, POSCO GIGA STEEL is also ideal because of its formability and processability.

While recent years have seen ultra strength steels come on to the market with tensile ratings above 1,000MPa, these have often been rigid and brittle, making them difficult to process and mold into workable parts. POSCO GIGA STEEL bridges that gap by offering an automotive steel solution with high ductility and high tensile strength. This unique technology makes POSCO GIGA STEEL a unique fit for automakers seeking materials that can be processed into complex parts while also offering the highest levels of strength and safety for consumers.

Because of the combination of both strength and formability, SsangYong Motor unveiled their new G4 Rexton SUV with a body frame that contains 63% POSCO GIGA STEEL – the highest ratio ever achieved in a body frame design. Manufacturers like SsangYong Motor can use such high ratios of AHSS because of the technological advancements that have improved its formability in line with its improvements in strength.

The body frame of SsangYong Motor’s new G4 Rexton is manufactured with 63% POSCO GIGA STEEL.

Testing the Strength of POSCO GIGA STEEL and Aluminum

As lightweighting has become a priority for car makers seeking to build more fuel efficient cars, many have been looking toward alternative materials to step in as a substitute for steel. However, while offering certain benefits in weight, these alternative materials offer tradeoffs in strength and formability. On the other hand, POSCO GIGA STEEL offers an ideal solution in terms of strength, weight, and formability for auto manufacturers that must adhere to safety and environmental regulations along with consumer demand.

To compare the strength and impact energy absorption of POSCO GIGA STEEL (CR1180TRIP) and aluminum (Al5083), researchers at the KAIST National Center for Standard Reference Data performed an experiment in which a projectile was fired at three equidistantly spaced pieces of POSCO GIGA STEEL and aluminum.

Traveling at 185 meters per second, researcher Park Myung-joon noted that “the projectile ripped through all three pieces of aluminum while not even breaking one sheet of the POSCO GIGA STEEL.” Saying, “This experiment helped demonstrate how POSCO GIGA STEEL is more than three times stronger than aluminum making it ideal for automotive applications.”

Watch the video below to see how the experiment was designed, set up, and carried out.

POSCO GIGA STEEL is seeing increasing demand with car makers as they realize the dual benefits of strength and formability. At the Seoul Motor Show last month, Renault Samsung Motors and Chevrolet both unveiled new vehicles that were made using POSCO GIGA STEEL instead of aluminum – boosting the car body’s strength and safety for passengers.

Due to POSCO GIGA STEEL’s increased strength and high formability, the new Renault Samsung QM6 was able to maintain excellent safety standards with easy integration into its production process.

POSCO GIGA STEEL is unique because it combines both strength and formability. With strength more than three times stronger than aluminum and with formability properties that allow it to be made into complex auto parts – POSCO GIGA STEEL is the most ideal solution for car makers today.

Throughout April & May, The Steel Wire will explore the uses and benefits of POSCO GIGA STEEL and what POSCO is doing to lead the industry with new automotive steel solutions.

Don’t miss any of the exciting stories from The Steel Wire – subscribe via email today.