Gerdau Digital Scrap Challenge

Gerdau Digital Scrap Challenge

This challenge is seeking your ideas for how to automate the inspection of scrap materials in a way that is quick, accurate, and objective. Read Overview...

The Digital Scrap Challenge is seeking your ideas for how to automate the inspection of scrap materials in a way that is quick, accurate, and objective.


How is scrap inspected today?

To give you an idea of volume, the global market purchased 400 million tons of scrap materials in 2017. Our share of that was 14 million tons. That is a lot of manual inspection! We buy about 280,000 tons of scrap per month in Brazil, amounting to over 10,000 truckloads!

Each truckload of scrap is brought to us, containing up to 200 different types of scrap materials. Upon site entry, each truckload is weighed and the weight is immediately recorded into our ERP software, SAP. Then, the truckload is emptied into a pile in the scrapyard or meltyard. A scrap inspector visually analyzes the material, refers to a manual to determine standard pricing and value, and then records an estimated value onto the same ERP software, utilizing a tablet/smartphone app. Each type of scrap is assigned a different monetary value depending on the metal type, size and density. Any debris found in the truckload is considered a penalty and value is deducted. The scrap inspector must act fast, because within 15 minutes of dumping the load, cranes will get to work organizing the scrap materials into areas of like metals that already exist in inventory. Due to space constraints and scrap provider expectations for quick service, it is very important that the trucks can get in and out in a reasonable timeframe.

What is the Problem?

The way scrap is inspected today has a lot of room for improvement. The current method is very subjective, highly influenced by the personal opinion of the scrap inspector. This leads to inconsistencies in pricing. Additionally, our process requires manual review which is timely and likely inaccurate.


The Key Challenges we face day-to-day that impact our progress are:

  • Varied scrapyard layouts - No standardization
  • Chemistry of scrap is unknown - Wide variety of contaminants
  • Qualitative nature to sorting or grade determination - Currently relying on subjective, visual inspections
  • Unpredictable market - Price, incoming materials (supply), and demand constantly vary
  • Tramp element accumulation - copper, zinc or tin that compromises the quality of scrap


Get Involved

We welcome entrepreneurs, researchers, scientists, students, and anyone eager to contribute, to jump into this challenge and to find a solution. Here's what you can do:

  • Read the Challenge Guidelines to learn about the requirements and rules
  • Click ACCEPT CHALLENGE above to start your entry
  • Start a conversation in our Forum to ask questions or connect with other innovators
  • Share this challenge on social media using the icons above


About the Sponsor


Headquartered in Sao Paulo, Brazil, Gerdau is the largest producer of long steel in the Americas, and the 14th largest steelmaker in the world.



Did you know that steel is an endlessly recyclable material?


We believe in the transformative power of social projects and are committed to protecting and respecting the environment. This challenge is one of our many initiatives designed to promote sustainability in our industry.

Most of the scrap recycled by our company comes from materials that are no longer used by the community, such as: stoves, refrigerators, and old cars. Also, we recycle the steel resulting from the production process of industries such as automotive, packaging and appliances. This material is recycled into new steel products, which are present in the everyday lives of millions of people.

The use of steel scrap as raw material in our production process reduces the consumption of energy in the steel process and consequently, it minimizes emissions of CO2. Moreover, we generate jobs for thousands of people through an extensive chain of scrap collection and processing for recycling. We also contribute to the preservation of the environment and reducing the amount of material deposited in landfills and inappropriate sites.

For us, recycling is not just a minor initiative for environmental protection, it is a major part of our overall business strategy. Every year, we transform more than 14 million metric tons of steel scrap into new steel present in the everyday lives of millions of people in many ways.

Updates 20

And the winners are...

Feb. 4, 2019, noon PST by Augusto Branco

We are thrilled to announce the winners of the Gerdau Digital Scrap Challenge!


This challenge sought ideas for how to automate the inspection of scrap materials in a way that is quick, accurate, and objective.

We are absolutely thrilled with the overwhelming response and quality of submissions. Ideas ranged from improving mechanically our existing process to the most disruptive technologies. We are also very happy with the variety of backgrounds of the teams that came from all over the world.


And the winners are...

Tied for 1st Place, received $20,000 each:


Team Steel Scraping: Jhonny Mosquera, Ayrton Gomes, and Anilson Gomes

Inspector: Artificial intelligence scraping steel

Praia, Cape Verde




Team UFRGS/GIMSCOP: Jônathan W. V. Dambros, Jorge Otávio Trierweiler and Marcelo Farenzena

Scrap inspection based on image recognition.

Porto Alegre, Brazil


3rd Place, received $5,000:


Individual: Jovanovic Igor

Smems for smart scrap material evoluation

Knjazevac, Serbia


Thank you to everyone who submitted and followed the challenge, we could not have done it without you. We would also like to send a special thank you to our expert reviewers whose feedback was invaluable in selecting the winners of the challenge.

8 Hours Remaining to Submit!

Dec. 14, 2018, 5:59 a.m. PST by Joeana Lutha Mae Villo

If you're still assembling your submission, you have exactly 8 hours left to complete it!

Here's a Tip: HeroX recommends innovators plan to submit with at least a 3-hour window of time before the true deadline. Last-minute technical problems and unforeseen roadblocks have been the cause of many headaches. Don't let that be you!

Two Day Warning

Dec. 12, 2018, 1:59 p.m. PST by Joeana Lutha Mae Villo

This is your official two-day reminder!

That's right, the Gerdau Digital Scrap Challenge will be closing this coming December 14th at 5:59 pm Eastern Time (New York/USA).

Please be sure to complete your submission form well before the exact cut-off time.

At exactly 5:59 pm ET, we can no longer accept new submissions!

Got questions?

Now is the time to speak up! Comment directly on this update with any questions about the submission process and we'll get back to you right away!

Five Days Left to Submit (TIPS)

Dec. 9, 2018, 1:59 p.m. PST by Joeana Lutha Mae Villo

We are quickly approaching the final days open for submission to the Gerdau Digital Scrap Challenge. The deadline is December 14th at 5:59 pm Eastern Time (New York/USA.)

Here are a couple of last-minute tips for a smooth entry process:

1. Begin your submission process several days before the cutoff time. This allows you to ensure everything you have been working on can be seamlessly integrated into the form.

2. Your submission will not be reviewed until you click the orange "Submit Entry" button at the top of the final review page. Please remember to do this!

3. Review the Challenge Guidelines to ensure your submission is complete. Pay particular attention to the judging criteria which will be the scorecard used to evaluate your entry.

4. Have any questions? Head over to the challenge forum and we would love to help you out.

Thanks so much, and good luck to all!

One Week Left to Submit

Dec. 7, 2018, 1:59 p.m. PST by Joeana Lutha Mae Villo

There's exactly one week left to submit your solution to the Gerdau Digital Scrap Challenge!

You're so close. You can do this!  

Remember, the final submission deadline is December 14th at 5:59 pm Eastern Time (New York/USA). No submissions received after this time will be accepted, so make sure to get yours in as soon as possible. Any last-minute questions or concerns can go right in the comments section of this update.


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