Yi Yi Special Steel (Jiangsu) Co., Ltd. Our regular products include: 16Mn seamless steel pipes, thick-walled steel pipes, large-diameter thick-walled pipes, etc. The cold-rolled precision bright pipes produced by our factory have smooth surfaces, uniform wall thickness, no oxidation layer, and high precision. The inner holes of the steel pipes can be circular, spline, or梅花-shaped, and are widely used in the automotive, motorcycle, power, petrochemical, shipbuilding, aerospace, bearing, pneumatic components, hydraulic cylinders, boiler equipment industries. Materials available include: 10#, 20#, 35#, 45#, GCr15, 40Cr, 16Mn, etc. We can also customize various precision pipes according to customer requirements. Special materials and specifications can be pre-ordered. The company regularly produces seamless steel pipes in accordance with Chinese national standards (GB), American ASME standards, German DIN standards, Japanese JIS standards, and British BS standards. Specific types include low and medium pressure boiler pipes, high-pressure boiler pipes, shipboard seamless pipes, oil cracking pipes, high-pressure fertilizer equipment pipes, sleeve pipes, pipeline pipes, hollow sucker rods, general fluid pipes, structural pipes, and imported alloy steel pipes. Our product range is rich in variety and complete in specifications, and is widely used in the oil, chemical, power, boiler, shipbuilding, machinery, and other industries. Our products have been sold throughout the country. Many products have been exported to the Middle East, India, Southeast Asia, and Europe and America.

Our company has been manufacturing, selling, and acting as an agent for sales of products from several major steel pipe factories, including Chenggang, Baogang, Anshan, Yeyang, Henggang, and others. These include: 10#, 20#, 45#, 16Mn, 27SiMn, Q345B, 35CrMo, 20Cr, 40Mn2, 40CrMo, 20CrMnTi, 10CrMo910, 15CrMo, 12Cr1MoV, 20G, St52, S45C, as well as pipe materials for geological, pipeline, chemical, and power industries. All products comply with national standards: GB8162-87, GB8163-87, GB3087-82, GB5310-95, and GB6479-86. Our inventory is ample, with a full range of varieties and specifications. Adhering to the principle of low-price and high-quality sales, we ensure customer satisfaction and comfort. Integrity and professionalism are our service tenets. We are committed to providing top-notch products and excellent service to both new and existing clients. We warmly welcome inquiries, letters, and personal visits from all new and old clients for business discussions and work guidance!