The core product of Wuxi Aotian Steel Wire Products Co., Ltd.
(hereinafter referred to as "Aotian Steel Wire") - 10B21 boron steel
cold heading wire, with precise composition control, mature spheroidizing annealing and pickling-phosphorization-saponification processes, has become the preferred raw material in the domestic high-end fastener market due to its three major advantages: low cracking rate, high purity and precise dimensions.
We adopt the full-process technology of "spheroidizing annealing + pickling-phosphorization-saponification + precision wire drawing":
Spheroidizing annealing: Ensures uniform structure and excellent plasticity, with the cold heading cracking rate close to zero;
Pickling-phosphorization-saponification: Clean surface, uniform phosphating film, smooth drawing and strong rust resistance;
Precision wire drawing: The wire diameter tolerance is controlled within ±0.02mm, meeting the dimensional accuracy requirements of high-end fasteners;
Full-process quality inspection: 100% sampling metallographic inspection is carried out to strictly control the spheroidization grade, grain size and decarburization layer, ensuring the stability of each batch of products.
Wuxi Aotian Steel Wire Products Co., Ltd. has been deeply engaged in steel wire manufacturing for more than 20 years, focusing on the R&D and production of cold heading steel, spring steel and alloy steel wire. It has modern production lines and a complete quality control system, with a daily output of over 100 tons. Its products are sold well across the country and exported to Southeast Asia, the Middle East and other regions, winning the trust of customers with "stable quality, on-time delivery and professional service".
