
Custom Pipe Flange and Fittings Manufacturer
Tailored to Your Specs. Delivered on Time. Backed by 16 Years of Expertise.
Popular Custom Flanges
Our custom flanges, designed to meet precise specifications, are perfect for industries like aerospace, defense, and high-purity applications. Whether you need unique sizes, special bore shapes, or flanges for niche uses, our expertly engineered solutions ensure flawless performance and compliance with international standards. These high-demand flanges offer unmatched precision and reliability for critical projects.

ASME/JIS Custom Flanges for Pipelines
Bridging ASME and JIS standards for leak-free, high-pressure connections in global pipeline networks across industries like oil & gas and power generation.

Custom Non-standard Flange
Transforming industries with specialized flanges for energy, pharma, offshore, and space applications, designed for rapid production and seamless integration.

ISO 21593 Flexible Joint Flange
Ideal for diverse industries, providing multi-directional compensation, vibration damping, and quick bolt-on installation for enhanced system performance.

GB/T 12459 DN 150 Sch40S Lap Joint Stub End (LJS)
Specialized for plastic-lined pipeline upgrades, food equipment renovations, and marine fuel systems, ensuring cost savings, compliance, and misalignment compensation.

Stainless Steel 45 Degree Elbow Stamped Pipe Fitting Welded Seamless Pipe Joint
Designed for applications in petrochemical, pharmaceutical, power, and water treatment industries.

ASME B16.9 1.5D Welded 90 Degree Elbow, Marine grade
Available in various materials and standards, designed for diverse applications across multiple industries.
Hot Pipe Fittings
Our company offers high-quality stainless steel pipe fittings, including elbows, tees, reducers, and more, for industries like oil & gas, petrochemical, and water treatment. Compliant with GB/T 12459, ASME, and DIN standards, our fittings ensure reliable performance, pressure resistance, and corrosion protection, providing durable, easy-to-install solutions for demanding environments.

Product Advantages
Custom flanges and industrial pipe fittings, engineered for precision, superior durability, and compliance with international standards, ensuring reliable performance across diverse, high-pressure and corrosive applications.
Precision Engineering for Custom Solutions
Our custom flanges are meticulously designed to meet the specific requirements of each project, from non-standard sizes to special bore shapes. This precision ensures seamless integration into your system, making them ideal for highly specialized industries like aerospace, defense, and high-purity applications.
Superior Material Quality and Durability
Crafted from high-quality stainless steel, our industrial pipe fittings offer exceptional performance, pressure resistance, and corrosion protection. Whether for oil & gas, petrochemical, or water treatment applications, these fittings guarantee long-lasting durability even in the harshest environments.
Compliance with International Standards
All our products meet rigorous international standards, including GB/T 12459, ASME, and DIN. This ensures reliable performance and consistent quality, making our flanges and pipe fittings the preferred choice for professionals worldwide, even in critical, high-pressure systems.
Why Choose Us
Choose us for our precision-engineered solutions, exceptional material quality, and strict adherence to international standards. We deliver custom flanges and pipe fittings tailored to your specific needs, ensuring reliable performance, durability, and seamless integration across a variety of industries and challenging applications.

Strict Quality Control
100% material testing and double inspection ensure each product meets international standards.

Reliable Raw Materials
All raw materials are sourced from Tsingshan Group – the world’s largest stainless steel producer.

Professional Manufacturing
Over 10 years of experience in forging and machining stainless steel flanges and fittings.
Contact Us
We are committed to delivering high-quality products and excellent service, building long-term partnerships. Contact us anytime, and we’ll be happy to assist you.
Industries We Serve
At Shangdian Flange, our custom stainless steel flanges and pipe fittings are trusted by global clients across a wide range of industries. From high-pressure pipelines to corrosive chemical environments, our products are engineered to meet international standards such as ASME, DIN, JIS, EN, and GB.
Oil & Gas
High-pressure, corrosion-resistant flanges for pipelines and refineries.
Power Generation
Components for thermal, nuclear, and renewable energy systems.
Pharmaceutical
