For nearly a century, Detroit Steel Treating has provided reliable heat treating for Detroit-area businesses. Our heat treatment expertise has been passed down through generations, ensuring dependable quality for your critical parts. Our expert staff monitor and manage the production of each work order. We process your parts to the required specification and inspect and certify your product when complete. We are currently registered to ISO 9001:2015 and are working toward IATF 16949:2016 and CQI-9 to ensure the best quality possible.