Welded Fitting Full Specification

1. Product Overview

We supply high-quality Welded Fitting, strictly complying with international standards. Our Welded Fitting features mature welding technology, reliable connection performance, high adaptability, and cost-effectiveness, widely used in various low-medium pressure, large-diameter industrial pipeline systems, suitable for global export.

2. Detailed Product Specifications

• Product Name: Welded Fitting
• Executive Standards: ASME B16.9, ASME B16.28, GB/T 12459, HG/T 21634, EN 10253-1
• Material Grade: Carbon Steel, Stainless Steel, Alloy Steel (A234 WPB, 304/304L, 316/316L, 20#, 16Mn, F11) — all materials meet international material quality standards, with complete material test reports (MTC), featuring good weldability and stable performance.
• Product Type: Welded Elbow (45°, 90°, 180°), Welded Tee (Equal Tee, Reducing Tee), Welded Reducer (Concentric Reducer, Eccentric Reducer), Welded Cap, Welded Cross (all types comply with international structural design requirements, welding seam smooth, uniform strength, no leakage).
• Size Range: NPS 1/2″ – 60″, DN10 – DN1500 (dimensional accuracy meets international standard requirements, with strict dimensional and welding inspection, suitable for large-diameter pipeline matching).
• Pressure Rating: Class 150 – 900; PN6 – PN63 (pressure-bearing performance meets international safety standards, suitable for low-medium pressure pipeline systems, adjustable according to welding process).
• Connection Method: Butt Weld, Socket Weld (main connection methods), compatible with threaded and flanged connections — welding quality complies with international specifications, connection tightness and strength meet industrial operation requirements.
• Surface Treatment: Anti-rust oil coating, pickling passivation (for stainless steel), galvanizing (optional), sandblasting (optional) — surface treatment meets international environmental protection and anti-corrosion requirements, effectively preventing welding seam corrosion.
• Application Scenarios: Petroleum, chemical, natural gas, water supply and drainage, municipal engineering, heating pipeline, steel plant, and general industrial fields; suitable for low-medium pressure, large-diameter, and general corrosive working conditions, widely used in pipeline connection projects.

3. Key Dimensions (ASME B16.9, Unit: mm)

NPS	DN	Outside Diameter (OD)	Wall Thickness (WT)	Elbow Radius (R)	Pressure Rating (Class)
1/2″	15	21.3	3.5	38.1	150/300
1″	25	33.7	4.5	60.3	150/300
2″	50	60.3	5.5	101.6	150/300/600
4″	100	114.3	7.0	203.2	150/300/600
6″	150	168.3	8.0	304.8	150/300/600/900

4. Export Marking

• Product Name: Welded Fitting
• Size: NPS/DN
• Pressure Rating: Class/PN
• Material Grade: A234 WPB/304/316L/20#/16Mn/F11
• Executive Standard: ASME B16.9/GB/T 12459/EN 10253-1
• Heat No.: Heat Treatment Number (traceable)
• Manufacturer Mark

5. Packaging & Delivery

• Packing: Wooden case, plywood pallet (environmentally friendly materials); each Welded Fitting is wrapped with moisture-proof paper and plastic film, coated with anti-rust oil to prevent collision, corrosion and scratches during transportation, especially protecting the welding seam from damage.
• Shipping Mark: Customizable English shipping mark, including product name (Welded Fitting), size, quantity, gross weight, net weight, and destination port.
• Certificates: MTC (Material Test Certificate), TUV, ISO, PED — all certificates meet import country requirements, especially suitable for low-medium pressure and large-diameter industrial applications.
• Lead Time: Standard specifications: 7-15 working days; Custom specifications/large orders: 15-30 working days.
• Storage: Store in a dry, ventilated, and clean warehouse, away from moisture, dust, and corrosive substances; avoid heavy pressure and collision to prevent damage to the welding seam and overall structure.

6. FAQ (Frequently Asked Questions, Export Focused)

• Q1: Do your Welded Fitting comply with international standards? What does it include?
  A1: Yes, all our Welded Fitting strictly comply with international industry quality standards, including material composition verification, dimensional accuracy control, welding quality inspection, environmental protection production processes, and traceability of product quality. This ensures our products meet the import requirements of global markets and pass relevant inspections smoothly, especially for low-medium pressure and large-diameter pipeline applications.
• Q2: What is the advantage of Welded Fitting compared to seamless fittings? How to choose?
  A2: Welded Fitting has the advantages of flexible production, cost-effectiveness, and ability to produce large-diameter products, suitable for low-medium pressure, large-diameter pipeline systems; seamless fittings have no welding seam, higher pressure resistance, suitable for high-pressure scenarios. Choose Welded Fitting for general industrial, municipal, and large-diameter pipeline projects; choose seamless fittings for high-pressure, high-precision industrial pipelines. Our Welded Fitting fully meets international standards for welding quality and performance.
• Q3: Can you provide custom size, type or welding process for Welded Fitting?
  A3: Yes, we support full custom services. We can produce non-standard sizes (beyond NPS 1/2″-60″/DN10-DN1500), custom types (e.g., special angle welded elbows, non-standard welded tees), and custom welding processes (e.g., argon arc welding, manual arc welding). All custom products still comply with international specifications, as long as you provide detailed technical requirements.
• Q4: What is the minimum order quantity (MOQ) for Welded Fitting? Do you provide samples?
  A4: For standard specifications of Welded Fitting, the MOQ is 10 pieces; for custom specifications, the MOQ can be negotiated. We provide free samples (1-2 pieces) for quality inspection, and the customer only needs to bear the shipping cost. The sample lead time is 3-5 working days.
• Q5: How to ensure the welding quality of your Welded Fitting?
  A5: We have a strict quality control system for welding: 1. Raw material inspection (material composition, weldability test); 2. Welding process control (professional welders, standard welding parameters); 3. Welding seam inspection (non-destructive testing, pressure test, appearance inspection); 4. All products are accompanied by MTC and welding quality test reports before delivery.
• Q6: What payment terms and shipping methods do you accept for export orders?
  A6: Payment terms: T/T (30% advance payment, 70% balance before delivery), L/C at sight, D/P, Western Union (flexible terms for long-term cooperative customers). Shipping methods: Sea freight (for large orders), air freight (for urgent orders), international express (for samples).
• Q7: Can your Welded Fitting be exported to Europe, North America and other regions? Do you have relevant certificates?
  A7: Yes, our Welded Fitting can be exported to Europe, North America, Southeast Asia, the Middle East and other global regions. We can provide MTC (Material Test Certificate), TUV, ISO and PED certificates required by the destination country, ensuring smooth customs clearance, especially for low-medium pressure and large-diameter industrial orders.