Malleable Iron 90 Degree Elbows are fundamental piping components designed to create a 90-degree directional change in fluid and gas conveyance systems. Manufactured from premium-grade malleable iron that has undergone a specialized annealing process, these fittings transform from a brittle state into a tough, ductile material with excellent impact resistance and vibration damping properties. Shanxi Xinshunda Flange Manufacturing Co., Ltd. produces precision-engineered 90-degree elbows that provide secure, leak-proof, and vibration-resistant connections for a wide array of industrial and commercial applications. Compliant with international standards such as ASME B16.3 and ASTM A197, our elbows ensure seamless integration and long-lasting performance. Comprehensive mechanical testing and quality certifications are guaranteed with every shipment.
Production Details
Our ASTM A193 bolts are produced using state-of-the-art CNC machinery to ensure every thread and hexagonal head meets precise engineering drawings. The raw materials undergo strict chemical composition analysis before entering the production line. Each fastener is subjected to rigorous surface inspection to ensure the absence of defects such as cracks, laps, or improper coating. The dimensional accuracy is verified using advanced measuring instruments, ensuring a perfect match with your mating flanges.
Product Properties and Application
Product Properties
Superior Directional Flow Control: Engineered to provide a precise 90-degree vertical turn in piping systems, minimizing flow resistance and turbulence while maintaining system integrity.
High Impact & Vibration Resistance: The annealed malleable iron construction absorbs mechanical stress and vibrations, preventing cracks and leaks in high-traffic or machinery-adjacent installations.
Robust Thread Integrity: Precision-cut female and male threads ensure a tight, secure fit that resists pull-out and leakage under high pressure (up to 2000 PSI for Class 300).
Optimal Corrosion Protection: Available in Black finish for gas and fuel applications, or Hot-Dip Galvanized (HDG) with a zinc coating ≥500g/m² for superior rust resistance in moist environments.
Application
Malleable Iron 90 Degree Elbows are extensively used in systems requiring reliable and easily maintainable directional changes. Key applications include Fire Protection Sprinkler Systems, Residential and Commercial Plumbing, and HVAC Systems (steam and hot water). They are also widely utilized in Compressed Air Networks, Gas and Fuel Distribution pipelines, and Industrial Machinery where frequent assembly and disassembly for maintenance are required.
|
Parameter |
Specification |
|
Standard |
ASME B16.3, ASME B16.14, EN 10242, DIN 2950, ISO 49 |
|
Product Type |
90° Elbow, 90° Street Elbow (Male x Female) |
|
Material |
Malleable Iron (ASTM A197 Cupola Malleable Iron) |
|
Size Range |
1/8" to 6" (DN6 to DN150) |
|
Pressure Class |
Class 150 (Standard Duty), Class 300 (Heavy Duty) |
|
End Connection |
Female/Male Threaded Ends |
|
Thread Standard |
ASME B1.20.1 (NPT), ISO 7-1 (BSPT), ISO 228 (BSPP) |
|
Surface Finish |
Black Paint, Rust-Proof Oil, or Hot-Dip Galvanized (HDG) |
|
Packing |
Plywood Cases, Wooden Pallets, or Custom Export Packaging |
Physical Properties
|
Property |
Value (ASTM A197 Malleable Iron) |
|
Tensile Strength |
≥ 276 MPa (40,000 psi) |
|
Yield Strength |
≥ 205 MPa (30,000 psi) |
|
Elongation |
≥ 10% |
|
Hardness |
≤ 150 HB (Brinell) |
|
Impact Toughness |
High (Resistant to shock loads) |
QA & QC
At Shanxi Xinshunda, we implement a rigorous Quality Control system for our Malleable Iron 90 Degree Elbows. Every elbow undergoes strict dimensional inspections using calibrated gauges to ensure compliance with ASME, DIN, and ISO standards. We perform 100% Air Pressure Underwater Testing to verify absolute leak tightness at the joints. Surface defects and thread accuracy are thoroughly checked using specialized thread gauges. Material composition and mechanical properties are verified through certified laboratory tests, and Mill Test Certificates (EN 10204 3.1) are provided with every shipment.
Packing, Storage, Handling and Transportation
To protect the product during transit, each elbow is carefully cleaned and the threads are coated with rust-preventative oil. Smaller elbows are individually wrapped in plastic bags or bubble wrap, while larger sizes are stacked and securely fixed on strong plywood pallets. For international shipping, products are packed in sturdy plywood cases with ample cushioning to prevent movement and surface scratches. Each package is clearly labeled with the size, material, pressure class, quantity, and batch number. Store in a dry, well-ventilated area to prevent prolonged exposure to moisture.
Strategic Partners with Shanxi Xinshunda
With over 15 years of manufacturing expertise, Shanxi Xinshunda Flange Manufacturing Co., Ltd. has proudly supplied premium industrial piping components to 3,800+ global customers across 70+ countries. We are committed to delivering robust and reliable solutions that ensure the safety and efficiency of your infrastructure projects worldwide, making us your trusted partner in the global energy and processing industries.
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