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Stamped elbows are butt-welded pipe elbows formed in one piece from integral steel pipe by cold stamping or hot stamping, and are the most commonly used standard pipe fittings in low-pressure and medium-low-pressure piping systems. They are formed by pressing with dies, featuring fast forming speed, standard dimensions, neat appearance, and high cost-performance, making them the elbow category with the largest usage in civil piping, municipal engineering, plumbing, gas, and ordinary industrial pipelines. The products strictly comply with GB/T12459 and ASME B16.9 standards, with conventional angles of 45°, 90°, and 180°, mainly in long radius R=1.5D, covering nominal diameters from DN15 to DN600, and common materials including 20# carbon steel, A234-WPB, stainless steel 304, and 316L. Stamped elbows feature stable forming, strong interchangeability, low mass production cost, and fast supply speed, making them suitable for normal-temperature, low-pressure, conventional fluid transmission pipelines, and they are widely used in water supply and drainage, HVAC and fire protection, municipal gas, ordinary chemical, and light industrial equipment piping systems. We provide standard specification stock and customization services, supporting non-standard angles, curvature, wall thickness, and material customization, and can provide technical selection support according to project requirements.
| Product Name | Stamped Elbow |
| Product Category | Stamped Elbow / Seamless Stamped Elbow / Stamped Butt-Welding Elbow / stamping elbow / 90° Stamped Elbow / 45° Stamped Elbow / 180° Stamped Elbow / Long Radius LR Stamped Elbow |
| - Connection Type | BW butt-weld, with welding bevels machined at both ends; |
| - Product Angle | 45°, 90°, 180°, with support for custom non-standard angle customization |
| - Curvature Radius | LR long radius R:1.5D; (mainstream), SR short radius R:1.0D; |
| - Nominal Diameter | DN15-DN600 (NPS 1/2"-NPS24); |
| - Wall Thickness Rating | SCH20, SCH40, SCH80, SCH120; |
| Carbon Steel | 20#, A234-WPB; |
Stamped elbows are butt-welded pipe elbows formed in one piece from integral steel pipe by cold stamping or hot stamping, and belong to the most commonly used standard pipe fittings for low-pressure and medium-low-pressure pipelines. They are formed by pressing with molds, featuring fast forming speed, standard dimensions, neat appearance, and high cost-effectiveness, and are the elbow category with the largest usage in civil pipelines, municipal engineering, plumbing and gas, and ordinary industrial pipelines. The products strictly comply with GB/T12459 and ASME B16.9 standards, with conventional angles of 45°, 90°, and 180°, mainly long radius R=1.5D, and nominal diameters covering DN15-DN600. Common materials include 20# carbon steel, A234-WPB, stainless steel 304, 316L, etc. Stamped elbows feature stable forming, strong interchangeability, low mass production cost, no need for complex heat treatment, and fast delivery. They are mainly used for normal-temperature, low-pressure, conventional fluid conveyance pipelines, widely applied in water supply and drainage, HVAC and fire protection, municipal gas, ordinary chemical, and light industrial equipment piping systems, used to change the direction of pipeline conveyance, and are basic supporting pipe fittings for engineering pipelines.
Stamped elbows are integrally formed by mold stamping, with regular and uniform dimensions, strong interchangeability, high installation matching, and convenient batch engineering assembly. They offer outstanding cost-effectiveness, low mass production cost, fast delivery, and are suitable for medium-low-pressure normal-temperature pipeline systems. The products comply with GB/T12459-2017 and ASME B16.9 standards, with conventional angles of 45°, 90°, and 180°, mainly long radius LR (R=1.5D). Nominal diameters cover DN15-DN600, wall thickness schedules SCH20, SCH40, SCH80, SCH120, and common materials are 20#, A234-WPB, 304, 316L. Non-standard angles, curvatures, wall thicknesses, and materials are supported for customization, and steel stamp marking can be applied according to customer project requirements. We provide selection technical support to assist in confirming working condition suitability and avoid selection errors.
Stamped elbows are suitable for normal-temperature, medium-low-pressure pipeline systems, with main scenarios including: fire protection, HVAC, water supply and drainage, such as building fire protection pipelines, central air conditioning HVAC pipelines, and water supply and drainage pipe networks; municipal gas, such as medium-low-pressure lines in municipal gas pipelines; ordinary chemical, such as normal-temperature low-pressure fluid conveyance pipelines; light industrial equipment, such as internal piping systems of light industrial machinery and equipment. In addition, they are also commonly used for foreign trade procurement, for overseas engineering projects or distributor bulk purchasing. Stamped elbows are basic supporting pipe fittings for engineering pipelines, used to change the direction of pipeline conveyance.
The main specification parameters of stamped elbows include: connection type is BW butt-weld (Butt-Weld), with welding bevels machined at both ends; product angles are 45°, 90°, 180°, with non-standard angle customization supported; curvature radius is LR long radius R=1.5D (mainstream), SR short radius R=1.0D; nominal diameter is DN15-DN600 (NPS 1/2"-NPS24); wall thickness schedules are SCH20, SCH40, SCH80, SCH120; common materials are carbon steel 20#, A234-WPB, stainless steel 304, 316L, 321, and alloy steel can only be stamped for small and medium diameters; execution standards are GB/T12459-2017, ASME B16.9; forming process is cold stamping/hot stamping mold forming; surface treatment is rust-proof oil, sandblasting, pickling and passivation (stainless steel); inspection items include appearance dimensions, spectral testing, hardness inspection; applicable working conditions are normal-temperature, medium-low-pressure pipeline systems; usage limitations are not recommended for high-temperature high-pressure, alternating impact working conditions, and stamping process is not applicable above DN600.
For regular stock specifications of stamped elbows (DN20-DN200, 90°LR, SCH40, 20# carbon steel, 304 stainless steel), the MOQ is 5-10 pieces; for large-diameter specifications (DN250-DN600), there is no stock and production scheduling is required, with MOQ of 10-20 pieces; special wall thicknesses need confirmation. In terms of delivery time, regular stock inventory orders are shipped within 3-7 working days after order confirmation; regular scheduled production orders take 7-12 working days; the mold production cycle for large-diameter DN250-DN600 stamped elbows needs confirmation. In terms of packaging, plastic protective caps are installed at both ends to protect welding bevels, carbon steel pipe fittings are coated with rust-proof oil, stainless steel fittings are pickled and passivated and packaged in isolation, each piece is wrapped with pearl cotton and waterproof stretch film, small and medium specifications use pallets with steel strap reinforcement, and foreign trade exports use fumigation-free plywood pallets with printed shipping marks. Specific delivery time and packaging can be confirmed according to order requirements. Feel free to contact us for detailed quotations.
We provide selection technical support, assisting in selection according to working condition pressure, temperature, and medium, clarifying that stamped elbows are suitable for medium-low-pressure normal-temperature working conditions, and avoiding selection errors. We provide technical documents such as product drawings, dimension tables, materials, and inspection reports. Defects in material, dimensions, or process of factory-shipped products are the supplier's responsibility and are eligible for return or exchange; damage caused by selection errors, improper welding and installation, or use beyond working conditions is not covered by the warranty. Order logistics assistance is provided for shipment tracking, and for foreign trade orders we assist in checking export documents such as packing lists, invoices, and shipping marks. If you have any questions, please feel free to contact us for confirmation.
Stamped elbows are suitable for DN15-DN600 normal-temperature medium-low-pressure pipelines, such as fire protection, HVAC, and municipal use; for high-temperature high-pressure main pipelines, hot-pushed elbows are preferred. For specific selection, you can contact us to assist in confirmation based on working condition pressure, temperature, and medium.
Stamped elbows are formed by stamping seamless steel pipe molds, with no weld seam on the body itself.
Angle customization (non-standard angles such as 30°, 60°), curvature customization (LR, SR), wall thickness customization (SCH20-SCH120), and material customization (carbon steel, stainless steel, medium and small diameter alloy steel) are supported, and steel stamp markings can be applied according to customer project requirements. Some non-standard items require new mold development, which involves mold costs and minimum order quantities.
For regular in-stock orders, shipment occurs within 3-7 working days after order confirmation; for regular scheduled production orders, 7-12 working days; for large-diameter DN250-DN600 stamped elbows, the mold production cycle needs to be confirmed. Specific delivery times can be confirmed by contacting us based on order quantity, specifications, and material.
Common materials include carbon steel 20#, A234-WPB, stainless steel 304, 316L, 321, and alloy steel, but only medium and small diameters can be formed by stamping for alloy steel. The specific material can be selected according to project requirements.
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