ASME B16.9 304 Stainless Steel Butt Weld 90° Elbow Seamless Pipe Fitting

Product Specification

ASME B16.9 304 Stainless Steel Butt Weld 90° Elbow Seamless Pipe Fitting

1. Product Description 

The stainless steel butt welding elbow is a high‑integrity pipe fitting produced through advanced hot forming or cold forging processes. It features a bevelled end designed for full‑penetration butt welding, ensuring a metallurgically sound joint that matches or exceeds the parent pipe strength. Manufactured from premium austenitic stainless steels such as 304/304L and 316/316L, the product delivers consistent chemical composition, fine grain structure, and excellent dimensional stability. Every elbow is marked with grade, size, schedule, and heat number for full traceability from melting to final delivery.

2. Product Applications

This elbow serves as an essential directional‑change component in critical piping systems across a broad spectrum of industries, including:

• Oil & Gas (onshore and offshore) – wellhead flowlines, platform piping, subsea manifolds, and refinery transfer lines.

• Petrochemical & chemical – reactors, heat exchangers, distillation columns, and acid/solvent handling systems.

• Power generation – nuclear (primary and secondary loops), thermal, and combined‑cycle plants, including superheated steam and cooling water circuits.

• Pharmaceutical & biotechnology – sterile process lines, CIP/SIP systems, and high‑purity water distribution.

• Food & dairy – product transfer, pasteurisation, and cleaning‑in‑place loops.

• Water & wastewater – desalination (reverse osmosis and brine lines), municipal water supply, and effluent treatment.

• Marine & shipbuilding – ballast water, fuel oil, and seawater cooling systems.

• Pulp & paper – chemical recovery and bleaching circuits.

• Semiconductor & ultra‑clean – high‑purity gas and chemical distribution.

​

​3. Product Advantages

• Full traceability – each fitting carries a heat number and is supplied with material test certificates (EN 10204 3.1 or 3.2), chemical composition reports, and mechanical property data.

• Strict quality control – production follows ISO 9001 and PED 2014/68/EU (where applicable), with in‑process inspections and final NDT to ensure zero defects.

• Superior corrosion resistance – low‑carbon grades (L) and stabilised grades (321, 347) minimise intergranular corrosion risk; duplex grades resist chloride stress corrosion cracking.

• Excellent weldability – precisely machined bevels and consistent wall thickness ensure easy fit‑up and reduce welding time and consumable cost.

• Ready stock and fast delivery – standard sizes and schedules are kept in inventory for immediate shipment; custom orders are processed within 10‑20 days.

• Cost‑effective solutions – optimized wall thickness and material selection based on design conditions help lower total installed cost.

• Global certification – products are certified to meet ASME, EN, JIS, and GOST requirements, suitable for projects worldwide.

4.Key Product Parameters

FAQ

1. Are you trading company or manufacturer ? We are manufacturer ,You can see the certification.

2.How long is your delivery time? Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

3. Do you provide samples ? is it free or extra ? Yes, we could offer the sample for free charge but need pay the cost of freight.

4. What is your terms of payment ? Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.