



QUALITY & CONSISTENCY
Application-based Heat Treatment solutions in India & Abroad for a diverse range of industries.
HARPER ADVANTAGE
Harper Steel Strips is a global leader in providing customized hardened & tempered steel strips of high carbon and stainless steel based out of Mumbai, Maharashtra. India.
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Our focus lies in specialized markets where uncompromising quality plays a pivotal role in defining the worth of semi-finished strip steel products. This significance is particularly evident in aspects such as precise edge preparations and impeccable flatness due to our vast experience and wealth of technical expertise.
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Each order we receive initiates meticulous scrutiny of our customer's precise applications. In the realm of customized strip steel, our offerings surpass conventional boundaries. We are adept at providing solutions that are entirely tailored to individual needs. This endeavor mandates profound expertise in critical areas such as the cold & hot rolling, Ultra-precise slitting, hardening & tempering and stringent quality control in each of the different stages. Because we manage our entire manufacturing process in-house, we have complete control and we are empowered to craft unequivocal top-tier products tailored to the demands of the markets.
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What we offer
Harper Steel Strips offers customized steel strips with desired properties and precision tolerance.
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We rank among the best in India and our steel strips are in demand across the world. The consistency in their mechanical and geometric characteristics is exceptional, encompassing remarkable levels of flatness, straightness, tensile strength and high endurance to fatigue.
Grow Your Vision with
HARPER
Hardened & Tempered Steel Strips Mumbai
Our Competencies
With years of experience and continuous investment in the latest infrastructure, we at Harper Steel Strips have a unique advantage. At the heart of our operations lies a robust and advanced manufacturing infrastructure that empowers us to excel in meeting customer needs. Our cutting-edge facilities and capabilities are the cornerstone of our commitment to delivering high-quality steel strips from the ever-growing market in India & abroad. From precision machining to quality control, our manufacturing prowess ensures that every steel strip that we produce meets the highest standards of excellence.
Cold Rolling - High precision guided by electronic control.
Our commitment to precision ensures that we maintain tight tolerances in the single-digit micrometer range when required, delivering consistently high-quality results. We roll high carbon steel and martensitic stainless steel up to 0.10 mm thickness or lower as desired.
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With our extensive expertise and wealth of experience in cold rolling, we are able to manufacture even small quantities of high-precision rolled steels within the narrowest tolerance range. The added advantage of electronic measuring tools and automatic gauge control systems helps us achieve desired precision with utmost consistency.

Slitting - Modular Slitting with smooth edges

At Harper, the slitting of steel strips for narrow widths from its wide counterpart is achieved through the modular Maxcess slitting systems. Higher speeds and tight width tolerances help in achieving precision slits for desired sizes.
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Maxcess slitting equipment is valued for its precision, reliability, and advanced control features, making it a preferred choice for industries that demand exacting standards in steel strip slitting.
Heat Treatment - Customized for highest quality
With our decades of experience, comprehensive investments and the collected expertise within our company, we achieve results in heat treatment that fully satisfy even the toughest demands.
By choosing Harper's semi finished strip steel, you ensure the enhanced reliability and consistent delivery of essential properties including tensile strength and bending characteristics for your end application products.
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We fine-tune the distribution of carbide within the micro structure of our strip steels to precisely meet the needs of your particular applications. Our hardening and tempering process achieves unparalleled consistency in strip shape, reducing susceptibility to errors to the maximum degree possible.
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Edge Finishing - Precision edge preparations for tailored requirements
Shaping the edges of steel strips as per the application can also enhance their formability. In the world of steel processing, precision and quality are paramount. One critical aspect often overlooked but essential for achieving optimal performance is the process of edge smoothening.

In industries such as automotive, aerospace, and electronics, where precision is critical, edge shaping is indispensable. Edge smoothening contributes to a more aesthetically pleasing surface finish. The smooth, shaped edges create a polished appearance and is a vital process that goes beyond cosmetic enhancements. It enhances safety, durability, corrosion resistance, and precision in steel strip applications. By investing time in edge smoothening, manufacturers and industries can achieve not only superior performance but also long-term cost savings, making it a wise choice for optimizing strip performance.
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Material Inspection - Consistency every time each time
Dimensional Accuracy
Inspection methods such as laser scanning and measurement systems help verify that each strip meets the specified dimensional tolerances of thickness and width.
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Material Traceability
At Harper we make use of Software based inspection processes for tracking and recording critical process parameters of individual strips, including material specifications, life cycle, and production history which ensures material traceability, essential for precise quality control.
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Harper Laboratory
Our laboratory offers a broad range of testing possibilities. We can reliably maintain the agreed-upon quality, and also promptly accommodate specific requests that arise for customer demands. We also collaborate with external partners and renowned universities for special-purpose tests wherever required.

