“High-Precision Inner Surface” Small-Diameter Pipes and ″FINE PEEK-ST“
NIPPON KINZOKU CO., LTD. (Headquarters: Minato-ku, Tokyo) has commercialized “FINE PIPE” *1, a welded drawn pipe that surpasses “seamless pipe” by using carefully selected materials and unique processing technologies (welding, drawing, annealing) only available from a raw material manufacturer.
These products meet the growing demand for higher precision in small-diameter pipe manufacturing, and we have received many inquiries, leading to increased orders for NIPPON KINZOKU’s “FINE PIPE” series.
- Features of NIPPON KINZOKU‘s “FINE PIPE” *1
- Higher precision than seamless pipes; continuous processing of coil products enhances productivity and enables significant cost reductions.
- Minimal thickness deviation, proprietary welding technology, and full-length control of the welded seam deliver pressure resistance and durability that exceed those of seamless pipes.
- Comprehensive quality assurance system using in-line inspection equipment from raw materials through to the final products.
- Various supply options available, including coil-wound, fixed-length, cut-to-length, and specially processed products from NIPPON KINZOKU.
Notes: Refer to *1 for manufacturing range and steel grades handled.
- Features of “High-precision inner surface” small-diameter pipe *2
- Significantly improved inner surface roughness compared to conventional products
(inner diameter ranging from 0.5 mm to 1.25 mm, and inner surface roughness of Ra 0.5 μm or less) - The inner surface is perfectly round and well-formed, with stable quality along the longitudinal direction.
- No post-processing is required, which significantly reduces costs compared to polished finishes.
Notes: Refer to *2 for manufacturing range and steel grades handled.
- Features of “FINE PEEK-ST” *3
- High-precision, high-strength column tube with PEEK resin pipe protected by stainless steel
- Can be used in ultra-high pressure environments of 100Mpa or more
- Even with a small inner diameter, roundness and inner surface roughness are greatly improved
(inner surface roughness of Ra 0.3 μm or less). - The coil shape of up to 20m can be cut to any length, which helps reduce costs and improve yields.
Notes: Refer to *3 for manufacturing range and steel grades handled.
*1 https://www.nipponkinzoku.co.jp/assets/images/2024/01/NIPPON-KINZOKUs-Welded-and-Drawn-Pipe-Fine-Pipe.pdf
*2 https://www.nipponkinzoku.co.jp/assets/images/2023/04/230418_nipponkinzoku_news_en.pdf
*3 https://www.nipponkinzoku.co.jp/assets/images/2024/03/d63791-36-7db4974674a5f0a2b8a581b4f6e4880e-Eng.pdf
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