BS Standard Malleable Iron Fittings are premium-quality, threaded piping components manufactured in strict compliance with British Standards (BS 143 & BS 1256). Crafted from high-grade malleable iron that has undergone a specialized annealing process, these fittings offer an exceptional combination of durability, ductility, and impact resistance. Designed to excel in demanding environments, they provide secure, leak-proof, and vibration-resistant connections for fluid and gas conveyance systems. Shanxi Xinshunda Flange Manufacturing Co., Ltd. produces these fittings with precision-machined BSPT/BSPP threads and robust structural integrity, ensuring seamless compatibility with British-standard piping systems worldwide. 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 Ductility & Toughness: The specialized heat-treatment process transforms brittle white iron into a highly ductile material, enabling the fittings to absorb significant mechanical stress and impact without fracturing.
High Pressure & Temperature Resistance: Rated for heavy-duty industrial service, these fittings maintain structural integrity under high pressure (up to 2000 PSI for Class 300) and elevated temperatures.
Excellent Vibration Damping: The inherent molecular structure of malleable iron effectively dampens mechanical vibrations, preventing joint loosening in machinery-connected piping systems.
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 or corrosive environments.
Application
BS Standard Malleable Iron Fittings are extensively used in Commonwealth countries and regions adhering to British engineering standards. Key applications include Fire Protection Sprinkler Systems, Commercial and Residential Plumbing, and HVAC Systems (steam and condensate lines). They are also widely utilized in Compressed Air Networks, Gas and Fuel Distribution, and Industrial Processing Plants where reliable, maintenance-friendly threaded connections are required.
|
Parameter |
Specification |
|
Standard |
BS 143, BS 1256 (Dimensions), BS 21 (Threads) |
|
Product Type |
Elbow (45°, 90°, Street), Tee, Cross, Coupling, Union, Cap, Plug, Bushing |
|
Material |
Malleable Iron (ASTM A197 / BS EN 1562) |
|
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 |
BS 21 (BSPT - Taper, or BSPP - Parallel) |
|
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 / BS EN 1562 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 BS Standard Malleable Iron Fittings. Every fitting undergoes strict dimensional inspections using calibrated gauges to ensure compliance with BS 143 and BS 1256 standards. We perform 100% Air Pressure Underwater Testing to verify absolute leak tightness. Surface defects and thread accuracy are thoroughly checked using specialized BS 21 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 fitting is carefully cleaned and coated. Smaller fittings are individually wrapped in plastic bags or bubble wrap, while larger components 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.
Hot Tags: bs standard malleable iron fittings, China bs standard malleable iron fittings manufacturers, suppliers, factory
