Description
Product Name: 45° Elbow
Executive Standard: GB/T12459-2017
Specification: 45EL 57
Raw Material: A105 Carbon Steel
Connection Method: Welding
Product Details:
This product is a butt-welding 45° elbow, a standard pipe fitting used in pipeline systems to change the pipeline direction by 45 degrees. It can smoothly adjust the medium flow direction and reduce pressure drop and turbulence.
1. Raw Material
It is made of high-quality A105 carbon steel forgings or steel plates. A105 material features excellent strength, toughness and weldability, making it suitable for manufacturing pressure-bearing pipe fittings.
2. Production Process
Incoming raw material inspection → Saw cutting → Hot pressing or push forming (hot pressing is commonly adopted for 45° elbows) → Heat treatment (normalizing to eliminate forming stress and homogenize microstructure) → Machining (port turning and bevel processing for welding preparation) → Surface cleaning (sand blasting to remove oxide scale) → Dimensional accuracy inspection → Non-destructive testing (conducted per standard requirements) → Pressure test (to verify pressure-bearing capacity) → Anti-corrosion coating (on demand) → Final inspection, marking and packaging. The entire process complies with GB/T12459-2017 specifications.
3. Application Fields
It is widely applied in fluid transmission systems requiring pipeline direction adjustment, including petroleum, natural gas, chemical engineering, electric power, shipbuilding, municipal engineering, heating, ventilation and air conditioning industries.
4. Temperature and Pressure Resistance
Temperature Resistance: The applicable temperature range of A105 material is approximately from -29°C to 425°C. Charpy impact energy compliance shall be verified for low-temperature service.
Pressure Resistance: The rated working pressure of the product is determined by its wall thickness schedule (such as Sch40, Sch80), nominal size and allowable stress of the material at design temperature. Specific pressure values shall be calculated or inquired according to standards including ASME B16.9 and GB/T12459. A105 material boasts high yield strength and tensile strength at room temperature and can withstand high working pressure.
Advantages of Hebei Hexin Pipe Fitting Co., Ltd.
1. Stable Technology: Mature hot forming technology ensures precise product dimensions, accurate angles and uniform wall thickness.
2. Complete Quality Assurance System: A comprehensive quality management system is established, with rigorous physical and chemical performance tests and non-destructive testing conducted on each batch of products.
3. High Product Consistency: Standardized production processes guarantee highly consistent dimensions and performance across different product batches.
4. Strong Technical Support: Professional technical consultation on model selection, installation and application is available for customers.
5. Timely Delivery: Efficient production planning and logistics system ensure on-time order delivery.
Production Specification Range (for reference only, subject to the latest information of the manufacturer)
- Size Range: Generally covers DN15 (1/2") to DN900 (36")
- Pressure Class: Various wall thickness schedules available, including Sch10s, Sch20, Sch30, Sch40, STD, Sch60, Sch80, XS, Sch100, Sch120, Sch140, Sch160, XXS
- Bending Radius: Mainly long radius (LR, R=1.5D) specifications; short radius (SR, R=1.0D) products can also be customized upon request
- Material: Carbon steel (A105, 20#, Q235, 16Mn), stainless steel (304, 304L, 316, 316L), alloy steel (15CrMo, P5, P9, etc.)
- Executive Standards: GB/T12459, ASME B16.9, HG/T21635, SH3408, etc.
