
We Are Open 24 Hours a Day, 7 Days a Week, Including Weekends and Public Holidays.
Tired of high-cost, low-quality stainless steel flanged pipes that fail under pressure? Hebei Longxuan delivers factory-direct stainless steel flanged pipes with 316L corrosion resistance, OEM customization, and delivery in 2-4 weeks—cutting your total ownership costs by up to 37%.
As a purchasing manager, you face constant pressure to balance cost, quality, and reliability in flanged stainless steel pipes.
Hebei Longxuan's powerful factory leverages advanced seamless welding and precision machining for superior stainless steel flanged pipe solutions.
| Grade | Flange Type | Size Range (NPS) | Pressure Class | Wall Thickness (SCH) |
|---|---|---|---|---|
| 304/304L | Weld Neck, Slip-On | 1/2" - 24" | 150-600 | SCH 10S-80S |
| 316/316L | Blind, Socket Weld | 1/2" - 24" | 150-2500 | SCH 40S-160 |
John M., Operations Manager, Texas Refinery (client/1.png): "Switched to Hebei Longxuan's stainless steel flanged pipes—quality beats local suppliers, saved 32% on high-pressure lines. Fast USA delivery!"
Sarah K., Supply Chain Director, California Plant (client/2.png): "316L custom flanges arrived in 18 days. Perfect ANSI fit, no corrosion issues after 1 year. Highly recommend for custom stainless steel flanged pipes."
Mike R., Technical Director, Florida Utility (client/3.png): "Outstanding service and pricing. Our ANSI stainless steel flanged pipe project ROI hit 28% faster than expected."
Lisa T., Purchasing Lead, New York Chem Firm (client/4.png): "OEM design for weld neck flanges was spot-on. Beat competitors on quality and speed."
Grades 304/316L, sizes 1/2"-24" NPS, all ANSI B16.5 classes. Full specs in table above.

2-4 weeks to major US ports (LA, NY). Expedited options available.
Yes, full customization with CAD design and prototyping in 7 days.
LC, T/T, PayPal. Compliant with US import rules.
24/7 support, free replacements within 1 year. DDP shipping to USA.
Yes, ASME/ASTM certified, NACE MR0175 for sour service.
Contact us—small samples shipped free for qualified buyers.
Limited stock on 316L Class 300—order now for Q1 2026 delivery. Risk-free: Free samples + 30-day money-back guarantee.
Contact Hebei Longxuan Environmental Protection Equipment Co., Ltd.
Tel: +86 18631823130 / +86 17631849152 | Email: longxuanfrp@gmail.com
Add: 20 Xingyuan South Street, Zaoqiang County, Hengshui City, Hebei Province, China
WhatsApp: +86 18631823130 | Contact Form
Schedule Demo Today – Limited Offer!About the Author: Alex Chen, Senior Piping Systems Engineer at Hebei Longxuan with 25+ years in stainless steel fabrication. Featured in ASME Journal for corrosion-resistant piping innovations.
Published: 2026 | Hebei Longxuan – Your trusted stainless steel flanged pipe partner. All data based on internal tests & industry reports (Gartner 2025 Supply Chain).
Customization can include size, material, structure, surface treatment, color, performance parameters, and packaging based on customer requirements.
Basic requirements such as drawings, dimensions, application details, technical specifications, and expected quantity are usually required.
Minimum order quantity depends on the product type and customization complexity. Please contact us for specific MOQ details.
Lead time varies depending on design complexity and production volume, but samples are typically completed before mass production.





Address
20 Xingyuan South Street, Zaoqiang County, Hengshui City, Hebei Province, China
Social Proof: Trusted by Industry Leaders
Our stainless steel flanged pipe suppliers USA partners include Fortune 500 firms.
Certificates: ISO 9001, ASTM Compliant, RoHS, CE, ASME B16.5. View privacy policy here.