In the field of pipeline engineering, traditional pipe fittings are often frequently replaced due to insufficient material strength, low casting accuracy or poor corrosion resistance, which increases operation and maintenance costs. Ductile iron tee pipe fittings (Metal Ductile Tee Casting) are becoming the first choice for energy, chemical, municipal and other industries due to their high strength, corrosion resistance and precision casting characteristics. As an industry-leading metal processing company, Xiamen Xiangxingxin Industry and Trade Co., Ltd. has launched a new generation of Metal Ductile Tee Casting with more than 20 years of technical accumulation, redefining the pipe fittings standard with three core advantages.
Advantage 1: Ductile iron material, both strength and toughness
Traditional gray cast iron pipe fittings have low tensile strength and are prone to cracking under high pressure or vibration environments. Xiamen Xiangxingxin uses ductile iron material, and through a special heat treatment process, the graphite is distributed in a spherical shape, the tensile strength is increased to 400-600MPa, and the elongation is 10%-18%, far exceeding the industry standard. For example, in the simulated 10-year corrosion test, the wall thickness loss of the DN200 tee fittings produced by it is only 0.3mm, and the service life is more than 3 times that of ordinary cast iron parts. It is suitable for harsh environments such as seawater desalination and chemical pipelines.
Advantage 2: Precision casting process, dimensional accuracy of ±0.1mm
Traditional sand casting is prone to large dimensional deviation of pipe fittings due to mold deformation, requiring a lot of machining correction. Xiamen Xiangxingxin introduced resin sand casting and CNC machining technology to achieve near-net molding production. Taking the DN150 tee as an example, its inner diameter tolerance is controlled within ±0.1mm, and the surface roughness Ra≤3.2μm. It can be directly connected with valves, flanges and other accessories seamlessly to reduce installation errors. In addition, the company supports customers to customize non-standard sizes, with a minimum batch of only 10 pieces, meeting the needs of small-batch trial production.
Advantage 3: Full-process quality control, ISO 9001 and CE certification
To ensure product stability, Xiamen Xiangxingxin has established 12 quality inspection processes from raw material testing to finished product delivery:
Material traceability: Each batch of ductile iron is accompanied by a material certificate, and the chemical composition conforms to the ASTM A536 standard;
Non-destructive testing: An ultrasonic flaw detector is used to detect internal pores and cracks, with a defect rate of less than 0.05%;
Pressure test: The finished product is subjected to a water pressure test of 1.5 times the rated pressure to ensure no leakage.
At present, the company has provided pipe fitting solutions for more than 300 companies around the world, and its products are exported to Southeast Asia, the Middle East and European markets. Typical cases include:
A Saudi Arabian refinery: Using DN400 tee pipe fittings to replace the original stainless steel parts, the cost is reduced by 40%, and the high temperature resistance is better;
A municipal project in Xiamen: Using DN300 anti-corrosion coating tee, it has been used in a humid environment for 5 years without rust, and has been highly recognized by the owner.
Contact now to get a customized solution
Xiamen Xiangxingxin Industry and Trade Co., Ltd. now opens Metal Ductile Tee Casting bulk purchase and sample trial production services, supporting the following cooperation models:
Small batch quick response: 10 pieces minimum order, 15 days delivery;
Large batch cost reduction: 8% discount for single purchase of more than 500 pieces;
Technical collaborative development: Provide pipe fitting structure optimization suggestions to shorten the R&D cycle.
