Stainless Steel Butt Weld 90° SR Elbow ASME B16.9 Class150 Seamless

Product Specification

Stainless Steel Butt Weld 90° SR Elbow ASME B16.9 Class150 Seamless

1. Product Description 

The stainless steel butt welding elbow is a premium-grade pipe fitting produced for use in high-integrity welded pipeline systems. Manufactured using state-of-the-art hot extrusion and cold sizing processes, this elbow delivers exceptional dimensional precision and surface finish. The product is solution-annealed and quenched to achieve optimal corrosion resistance and mechanical properties. Each fitting is carefully inspected and tested at multiple stages during production, ensuring that it consistently meets or exceeds the requirements of relevant international standards. The smooth internal surface and precisely machined bevel ends ensure rapid fit-up and reliable welding results.

2. Product Applications

This elbow serves as an essential component in welded piping systems where directional changes must be executed with maximum reliability. Typical applications include:

• Crude oil transmission pipelines – long-distance onshore pipelines with frequent directional changes.

• Natural gas distribution networks – city gate stations and high-pressure transmission laterals.

• Petrochemical cracking units – ethylene and propylene production furnace outlet piping.

• Ammonia synthesis plants – high-pressure loop piping operating at 150–350 bar.

• Methanol production facilities – reformer outlet and synthesis gas transfer lines.

• Sour water stripping units – corrosion-resistant piping for H₂S-containing wastewater.

• Pharmaceutical clean utilities – purified water, water for injection, and clean steam distribution.

• Agricultural irrigation systems – large-diameter welded steel pipeline networks.

• Mine dewatering systems – abrasive slurry and tailings disposal pipelines.

• LNG bunkering facilities – ship-to-shore transfer lines for marine fuel.

​3. Product Advantages

• Guaranteed material integrity – every melt is spectrometrically analyzed to verify composition; rejects are segregated before forming, ensuring only certified material enters production.

• Optimized grain structure – the solution annealing process dissolves carbides and refines grain size, enhancing resistance to intergranular corrosion and improving ductility for welding.

• High-quality bevel finish – machined rather than ground bevels ensure no heat-affected zones remain on the bevel surface, preventing preferential corrosion sites.

• Reduced installation labour – the close dimensional tolerances reduce fit-up time significantly; in many cases, installation can be completed 40% faster compared to field-prepared bevels.

• Seamless integration with pipeline systems – manufactured to standard center-to-end dimensions, allowing direct replacement without system re-engineering.

• Crevice corrosion protection – the smooth bore eliminates crevices where stagnant media could accumulate, extending service life in chloride-bearing environments.

• Predictable welding outcomes – consistent material properties and bevel geometry enable the generation of reproducible welding procedure qualifications, reducing the need for requalification.

• Global project acceptance – products manufactured to multiple international standards and available with third-party inspection reports are accepted on projects worldwide without additional requalification.

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.