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Special Steel Elbows
1.180° short radius seamless steel elbows are monolithi […]
1.180° short radius seamless steel elbows are monolithic hot-formed pressure-containing fittings, widely utilized for compact U-turn fluid reversal and space-restricted modular piping systems. Manufactured in strict adherence to ASME B16.9 and GB/T 12459 industrial codes, this product adopts a standard 1.0D bend radius, which is engineered exclusively for densely arranged pipe layouts and limited installation scenarios where conventional 1.5D long radius elbows fail to fit. Compared with long-radius counterparts, the 1.0D compact bending structure effectively shortens pipeline routing distance and optimizes overall pipe network layout. Fabricated via one-piece integral hot pushing process, the entire fitting features zero weld seams and secondary splicing. This integral forming mode completely eliminates welding porosity, slag inclusion and residual stress concentration, delivering superior structural integrity and leak-proof performance for long-term pressurized service.
2.Admittedly, the short-radius bending design produces slightly higher hydraulic resistance than long-radius elbows, but precision integral forming guarantees uniform inner wall flatness and stable internal flow field distribution. Under rated temperature and pressure operating parameters, the fitting achieves smooth 180-degree fluid redirection without severe flow turbulence, flow separation or abnormal pipeline vibration. The bending section maintains uniform wall thickness and compact metallographic structure throughout the transition zone. Professional post-forming heat treatment thoroughly relieves forming residual stress, stabilizing structural rigidity and mechanical fatigue resistance. It can withstand long-term cyclic pressure impact and continuous medium scouring, fully meeting the stable operation requirements of conventional industrial fluid transmission systems.
3.This series of seamless elbows is forged from premium carbon steel, alloy steel and stainless steel seamless pipe blanks with strictly controlled chemical composition and stable mechanical properties. The whole manufacturing procedure adopts precision integral hot forming and CNC contour sizing technology to ensure standard bending radian and minimal dimensional tolerance deviation. Post-forming thermal treatment including normalizing and stress-relief annealing is conducted to refine grain structure, enhance material toughness and stabilize comprehensive mechanical performance. All finished products undergo rigorous dimensional calibration, surface finishing and full-range non-destructive testing, eliminating internal forming defects and ensuring qualified surface finish and high assembly precision for field construction.
4.Featuring compact structure, high dimensional accuracy, reliable structural tightness and excellent fatigue resistance, 180° short radius seamless steel elbows are extensively applied in municipal pipe network renovation, industrial equipment closed-loop circulation pipelines, HVAC systems, general chemical process piping and mechanical equipment supporting pipelines. Serving as the optimal alternative for space-constrained U-turn pipe sections, this fitting effectively resolves the layout bottleneck of long-radius elbows in narrow construction environments, balancing space utilization efficiency and long-term operational stability of piping systems.
5.As a professional manufacturer and supplier specializing in customized seamless pipe fittings, we provide full-spec production covering various nominal diameters, wall thicknesses and steel grades compliant with international SCH standards. All finished elbows possess high dimensional uniformity and universal interchangeability, enabling precise butt joint and reliable matching with standard steel pipes, flanges and valve assemblies. Equipped with mature integral hot forming technology and a standardized full-process quality management system, our products maintain stable structural performance under alternating temperature and pressure loads, providing cost-effective, safe and long-lasting supporting solutions for diverse industrial and municipal piping engineering projects.
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Oil & Gas Industry
Offshore platforms, subsea pipelines, refining equipment, and processing facilities. Excellent resistance to sour gas and chloride stress corrosion cracking.
Chemical Processing
Chemical plants, pharmaceutical production, pulp and paper mills. Superior performance in acidic and chloride-containing environments.
Desalination Plants
Seawater reverse osmosis systems, brine handling, and thermal desalination units. Outstanding resistance to chloride-induced corrosion.
Power Generation
Thermal power plants, nuclear facilities, and renewable energy systems. High-temperature strength and corrosion resistance.
Marine Applications
Shipbuilding, port facilities, and coastal installations. Excellent seawater corrosion resistance and mechanical properties.
Mining & Metallurgy
Slurry pipelines, ore processing, and tailings handling. Resistance to abrasive and corrosive media.
ISO 9001:2015
CE Marking
API 6D
ASME Section IX
EN 10204 3.1
ABS / DNV / BV
ISO 15156 / NACE MR0175
PED 2014/68/EU
Product Features
ISO 9001 Certified
Quality management system certification
10-Year Warranty
Comprehensive product warranty
Global Shipping
Worldwide delivery available
24/7 Support
Technical support and consultation
