Product Overview
Our Screwed Flanges made from Carbon Steel ASTM A105n and Stainless Steel grades 304/316 are precision forged and designed for reliable, leak-proof piping connections. Featuring a butt-weld (BW) forged design, these flanges provide strong mechanical strength and excellent corrosion resistance, making them suitable for a wide range of industrial applications.
Manufactured according to ASTM standards, the threaded bore allows for easy installation without welding, ideal for systems requiring frequent assembly and maintenance. The combination of carbon steel and stainless steel options ensures flexibility in meeting diverse project demands.
Product Specifications
| Flange Type | Material | Standard | Size Range (Nominal Diameter) | Pressure Class |
|---|---|---|---|---|
| Screwed BW Forged Flange | Carbon Steel (ASTM A105n), Stainless Steel (304, 316) | ASTM A105n, ASTM A182 | DN15 – DN200 (½″ – 8″) | Class 150 – 600 |
Key Features:
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Manufactured under strict ASTM A105n and ASTM A182 standards
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Threaded bore enables installation without welding, saving time and cost
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Butt-weld forged design ensures superior mechanical strength and durability
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Stainless steel grades 304 and 316 provide excellent corrosion resistance
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Suitable for pressure classes from 150 to 600, fitting various industrial requirements
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Ideal for petrochemical, oil & gas, water treatment, and HVAC industries
Typical Applications:
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Industrial piping systems requiring threaded connections
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Oil and gas pipelines and refineries
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Chemical processing plants
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Water treatment and distribution systems
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HVAC and fire protection systems
Company Introduction — Hebei Cangtie Industrial Co., Ltd
Hebei Cangtie Industrial Co., Ltd specializes in manufacturing and exporting high-quality pipe fittings and flanges, including screwed, forged, and welded types made from carbon and stainless steel.
Located in Yanshan Economic Development Zone, Cangzhou City, Hebei Province, China, our factory is equipped with advanced forging and machining equipment, ensuring strict quality control and product precision.
With over 10 years of experience, we provide products compliant with ASTM, ASME, DIN, and other international standards, serving global customers with OEM/ODM customization services.
Contact Us
Contact Person: Hudson Liu
Mobile / WhatsApp: +86 157 3370 8805
Email: hudson@cangtiepipe.com
Website: https://ctflange.com/
Factory Address: Yanshan Economic Development Zone, Yanshan County, Cangzhou City, Hebei Province, China
Frequently Asked Questions (FAQ)
1. Are you a manufacturer or trading company?
We are a manufacturer with our own factory located in Hebei, China, specializing in stainless steel, carbon steel, and alloy steel flanges.
2. What materials do you offer?
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Stainless Steel: 304, 304L, 316, 316L, 321, etc.
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Carbon Steel: ASTM A105, ASTM A350 LF2, Q235, Q345, etc.
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Alloy Steel: ASTM A182 F11, F22, F5, etc.
3. Which standards do your products comply with?
ASME B16.5, ANSI, ASTM, DIN, JIS, EN, GB — with third-party inspection available.
4. Do you support OEM/ODM customization?
Yes, we provide custom machining, coating, marking, and packaging based on your drawings.
5. What is your minimum order quantity (MOQ)?
MOQ is typically 1 piece for standard items; customized parts may vary.
6. Do you provide free samples?
Yes, free samples for standard sizes are available; buyers cover shipping cost.
7. What is your delivery time?
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In-stock: 3–5 working days
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Bulk/custom orders: 10–25 working days
8. How do you ensure product quality?
We perform full inspection: raw material verification, dimensional checks, pressure/leak tests, and surface finish inspection. Third-party testing is available upon request.
