High-precision angle bars, specialized coils, decorative strips, and heavy-duty tubing manufactured for extreme operational environments.
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Explore SpecificationDongguan TEDDI STEEL Co., Ltd. is a professional stainless steel manufacturer and global supplier specializing in stainless steel plates, coils, pipes, tubes, cross fittings, structural channels, and a wide range of industrial metal materials. The company is committed to providing high-quality stainless steel products that meet the demanding requirements of industries such as construction, automotive, machinery, energy, food processing, and chemical engineering.
TEDDI STEEL offers an extensive product portfolio including stainless steel sheets, cold rolled and hot rolled coils, seamless and welded pipes, precision tubes, bars, and customized metal solutions. All products are manufactured using premium raw materials and advanced processing techniques to ensure excellent corrosion resistance, durability, and mechanical performance across various applications.
Equipped with modern production facilities, advanced slitting, cutting, and finishing lines, as well as strict quality inspection systems, Dongguan TEDDI STEEL Co., Ltd. ensures consistent product quality and reliable supply capabilities. The company adheres to international standards and implements rigorous testing procedures to meet customer specifications and industry requirements.
In addition to standard products, TEDDI STEEL provides flexible customization and OEM services, supporting clients with tailored dimensions, surface finishes, and packaging solutions. With a strong focus on quality, efficiency, and customer satisfaction, the company continues to serve as a trusted partner for stainless steel and industrial metal material solutions worldwide.
Empowering global supply chains with high-capacity production line automation and zero-defect quality control.
Understanding the shift toward high-pressure, corrosion-resistant 4-way pipeline nodes in modern industrial architectures.
The acceleration of green hydrogen transportation systems demands ultra-low permeability piping components. Stainless steel equal and reducing crosses engineered from 316L and Duplex 2205 prevent hydrogen embrittlement under cryogenic pressures reaching 700 bar.
Modern petrochemical refineries are phasing out multiple welded T-joints in favor of monolithic forged stainless steel cross fittings (equal cross and reducing cross). This structural shift minimizes weld seam vulnerability by 50% and reduces laminar fluid turbulence.
Pharmaceutical cleanrooms and semiconductor fabrication plants mandate electro-polished stainless steel crosses with internal surface roughness ($Ra < 0.38 \mu m$). TEDDI STEEL delivers specialized sanitary crosses meeting ASME BPE standards to eliminate bacterial trap locations.
A Stainless Steel Cross (also known as a 4-way pipe fitting or cross branch fitting) is a critical fluid-routing element used to split or combine process flows at right angles. China's manufacturing ecosystems, led by industry pioneers such as Dongguan TEDDI STEEL Co., Ltd., have advanced from basic casting techniques to state-of-the-art cold hydraulic forming, hot forging, and multi-axis CNC machining.
Selecting the appropriate stainless steel grade for cross fittings depends on chemical environment, working temperature, and mechanical stress profiles. The table below delineates the chemical composition and mechanical threshold of key alloys supplied by TEDDI STEEL:
| Grade / Alloy | UNS Designation | Tensile Strength (MPa) | Yield Strength (MPa) | Primary Application Environment |
|---|---|---|---|---|
| AISI 304 / 304L | S30400 / S30403 | ≥ 515 | ≥ 205 | General civil engineering, commercial food processing, structural architecture |
| AISI 316 / 316L | S31600 / S31603 | ≥ 520 | ≥ 210 | Marine infrastructure, offshore oil & gas, aggressive acid chemical lines |
| Duplex 2205 | S31803 / S32205 | ≥ 655 | ≥ 450 | Subsea drilling manifolds, high-chloride environments, severe stress-corrosion cracking risk |
| AISI 310S | S31008 | ≥ 515 | ≥ 205 | High-temperature industrial furnaces, heat exchangers, thermal exhaust piping (≤ 1150°C) |
| Super Austenitic 904L | N08904 | ≥ 490 | ≥ 220 | Sulfuric acid production, flue-gas desulfurization (FGD), severe chemical processing |
TEDDI STEEL’s cross fittings and associated stainless steel components comply strictly with international manufacturing benchmarks:
In high-pressure system design, the cross junction experiences complex multidirectional hoop stresses. The maximum allowable burst pressure ($P$) for a seamless stainless steel pipe cross is determined using Barlow’s Formula adjusted for fitting shape factors:
Providing end-to-end supply chain alignment for mega-projects, EPC contractors, and international stockists.
TEDDI STEEL streamlines procurement by bundling stainless steel cross fittings with matching seamless pipes, precision coils, flat bars, and C-channels in a single consolidated shipment, significantly lowering ocean freight and customs handling overheads.
For non-standard deep well drilling, oil casing, and high-vibration systems, we offer custom female-male threading (NPT, BSPT, API 5CT), precision deep beveling, and bespoke wall thickness customization directly from factory stock.
By leveraging China's advanced cold-rolling and precision extrusion technologies, TEDDI STEEL provides enterprise buyers with high-tensile materials that maximize operational lifecycle and lower maintenance shut-down cycles by up to 35%.
As a leading Chinese exporter of stainless steel crosses, plates, and pipes, Dongguan TEDDI STEEL Co., Ltd. upholds zero-compromise quality management systems. Every product lot undergoes extensive mechanical, chemical, and non-destructive testing (NDT) before export authorization.
Pioneering smart manufacturing, zero-carbon steel production, and additive cross-manifold synthesis.
Integrating real-time thermal sensors and machine-learning algorithm controls into the hot forging of stainless steel crosses to optimize grain-structure refinement, improving yield strength by up to 18%.
Pioneering green hydrogen direct reduced iron (DRI) production technology, reducing the embodied carbon footprint ($CO_2/ton$) of imported stainless steel plates, tubes, and cross fittings for ESG-compliant global clients.
Embedding micro-fiber-optic stress and corrosion sensors within heavy-wall duplex crosses to provide predictive maintenance telemetry for offshore oil subsea installations.
Expert technical insights regarding standard compliance, material selection, and procurement logistics.
An Equal Stainless Steel Cross has four outlets of identical nominal pipe size (NPS), allowing uniform fluid flow across all branches. A Reducing Cross features smaller outlet diameters on one or two opposing ends, enabling flow-rate modification and pressure control within high-density piping networks without requiring additional reducers.
Stainless steel 316L contains 2.0% to 3.0% Molybdenum (Mo) and a lower carbon content (≤0.03%), providing far superior resistance to pitting corrosion in chloride-rich environments, acids, and marine conditions compared to 304 stainless steel. It also prevents intergranular corrosion in post-weld cross heat-affected zones.
Butt-weld crosses are governed by ASME B16.9 / EN 10253-4, which outlines bevel angles, center-to-end dimensions, and wall thickness tolerances. High-pressure socket-weld and threaded forged crosses are manufactured in strict compliance with ASME B16.11 for ratings up to Class 9000#.
Every production batch undergoes 100% PMI testing, hydrostatic pressure testing, dimensional verification using digital coordinate measuring machines (CMM), and visual surface inspection. All orders are backed by EN 10204 3.1 Mill Test Certificates and optional third-party verification (SGS/BV/TÜV).
Yes. TEDDI STEEL offers full OEM and bespoke engineering services. We manufacture non-standard angle crosses, custom wall thickness schedules (Sch 160 / XXS), male-female threaded drilling crosses, and special duplex/super duplex alloys based on client-provided CAD/BIM specifications.
State-of-the-art extrusion, cold-rolling, heat treatment, and warehouse storage operations at TEDDI STEEL.
High-grade welded pipes, high-thermal plates, structural channels, and fabricated sheet metal solutions.
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TEDDI STEEL
