INTERNSHIP DETAILS

Materials Engineer Lab Intern (Year-Round)

CompanyCharter Manufacturing
LocationSaukville
Work ModeOn Site
PostedSeptember 9, 2026
Internship Information
Core Responsibilities
The intern will operate and maintain metallographic lab equipment to analyze steel microstructure and mechanical properties. They will also document findings in technical reports and assist in evaluating manufacturing defect claims.
Internship Type
part time
Company Size
404
Visa Sponsorship
No
Language
English
Working Hours
40 hours
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About The Company
Charter Manufacturing Company, Inc. is a family-owned group of differentiated metals manufacturing businesses founded in 1936. Our will to grow is our success. It is the result of Charter’s respected team of employees, each person’s dedication to continuous improvement and an entrepreneurial spirit that thrives within the Charter family. Our businesses include Charter Steel, Charter Dura-Bar, Charter Wire and Charter Aarrowcast. Connect with us and learn about the stories and successes our family of employees share. Visit http://www.chartermfg.com/work/jobs/ to learn more about opportunities for employment and where you might fit in.
About the Role

Charter Manufacturing is a fourth-generation family-owned business where our will to grow drives us to do it better.  Join the team and become part of our family!

Charter Steel is a leading American supplier of carbon and alloy steel bar, rod and wire products, and the largest steel coil processor in North America. As a fully integrated steelmaker with locations in Ohio and Wisconsin, Charter Steel offers a full range of grade and size coiled products and vast technical service experience.  Charter Steel is a member of the Charter Manufacturing family of companies.

About the Materials Engineer Lab Internship:

Gain hands-on experience analyzing the microstructure and mechanical properties of steel while learning how manufacturing processes influence material performance. You'll use metallographic equipment, microscopes, hardness testing, and analysis software to evaluate steel quality and identify manufacturing defects.

Program structure:

  • Schedule: Part-time (15-20 hours/week) during the academic year and full-time (40 hours/week) during the summer.

  • Location: Saukville, WI

  • Start Date: January 2027

  • Duration: Year-round internship

What we're looking for:

  • Enrollment in a four-year degree program in Materials Science & Engineering, Mechanical Engineering or a related field with current status of at least a Sophomore level.

  • Cumulative GPA of 2.75 or higher.

  • Proficient in Microsoft Office software: Excel, Word, and PowerPoint.

  • Strong verbal and written communication skills.

  • Strong interpersonal and relationship building skills.

  • Ability to succeed in a team environment.

  • Ability to handle multiple tasks.

What you'll focus on:

  • Operate and assist in the maintenance of the TS lab metallographic equipment.

  • Document professional quality level images for use in Technical Service Reports to our internal and external customers.

  • Summarize findings to the TS Lab Group via email, Microsoft Teams, etc.

  • Take a lead role in the evaluation of Hercules and Niagara Lasalle accumulations claims.

  • Learn microstructures and mechanical properties of steel components.

  • Becoming familiar with the effects of various manufacturing processes on 'raw as-produced' steel.

  • Identifying manufacturing defects relating to the casting, hot rolling, processing, and forming of steel components.

  • Experience using metallographic equipment, macro and microscopes, automated analysis software, Rockwell and Microhardness testing.

What Sets Our Internship Program Apart: Work on meaningful projects while receiving mentorship, professional development, and networking opportunities that help launch your career. Our paid internship program also includes signature experiences like Charter's Intern Kickoff Day, volunteer opportunities, professional development workshops, and the Intern Summer Showcase.

 

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Internship positions are not benefits-eligible.
Key Skills
Materials scienceMechanical engineeringMetallographic equipmentMicroscopyHardness testingSteel quality analysisMicrosoft OfficeExcelWordPowerPointTechnical reportingCommunication skillsInterpersonal skillsTeamworkData analysis
Categories
EngineeringManufacturingScience & Research