Nan Cheng Steel Wire Co., Ltd. is a professional steel wire manufacturer with more than 40 years of experience in precision wire drawing and metal wire processing.
We provide a wide range of high-performance wire materials, including hard drawn steel wire, piano wire, stainless steel wire, galvanized spring steel wire, and phosphor bronze wire.
Our steel wire products are widely used in automotive components, mechanical springs, hardware manufacturing, and industrial applications. With advanced manufacturing technology and strict quality control under ISO 9001 certification, Nan Cheng delivers reliable wire materials and customized processing services to customers worldwide.
Hard Drawn Steel Wire
ll products are strictly manufactured in compliance with the JIS G 3521 international standard, using high-quality SWRH 42A–82B high-carbon steel wire rods, processed through a precision cold drawing process.
Piano Wire
We focus on supplying high-quality Piano Wire, strictly complying with the JIS G 3522 international standard. We directly import premium SWRS 82A–87A high-carbon steel wire rods from top steel mills in Japan (Nippon Steel, Kobe Steel), Korea, and Taiwan.
Galvanized Spring Steel Wire
Nancheng Enterprise supplies Galvanized Steel Wire for Springs in compliance with the JIS G 3548 standard. We carefully select SWRH 57A–82B high-carbon steel as the base material and apply advanced hot-dip galvanizing or electro-galvanizing processes to form a dense zinc protective layer on the steel wire surface.
Stainless Steel Wire For Spring
Nancheng Enterprise supplies Stainless Steel Wire for Springs compliant with the JIS G 4314 international standard. We carefully select SUS 304 and SUS 316 series materials from first-tier steel mills in Japan and Korea, ensuring precise nickel and chromium alloy ratios to deliver excellent corrosion resistance in stainless steel wire for springs.
Oil-Tempered Chromium–Silicon Alloy Steel Wire for Mechanical Springs
We specialize in supplying oil tempered wire required for high-end industrial springs, strictly complying with the JIS G 3560 international standard. Our primary oil tempered wire products are made of silicon–chromium alloy steel (Si-Cr alloy steel) and processed through precise oil quenching and tempering heat treatment, giving the wire exceptional toughness that surpasses ordinary carbon steel wire.
Oil-Tempered Chromium–Silicon Alloy Steel Wire for Valve Springs
Oil Tempered Wire for Valve Springs complies with the JIS G 3561 standard and is manufactured from silicon–chromium alloy steel (Silicon-Chromium Alloy Steel).
