Product Description
Our Carbon Steel Plate Flange DN25 PN40 is meticulously forged from premium P235GH carbon steel, ensuring outstanding durability and reliability for demanding industrial environments. Manufactured in compliance with ASTM and EN1092-1 standards, this flange is engineered for butt weld (BW) connections, providing excellent structural integrity and precise alignment in piping systems.
With a Raised Face (RF) design, the flange guarantees a secure, leak-proof seal, making it an ideal choice for medium-pressure and high-temperature applications. The forged construction enhances mechanical strength, while the carbon steel material offers resistance to stress, wear, and corrosion, ensuring long service life even in challenging environments.
Widely used across industries such as power generation, petrochemical, chemical processing, shipbuilding, and water treatment, this DN25 PN40 flange is a trusted solution for critical pipeline projects where safety and efficiency are paramount.
Key Features & Benefits:
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Material: High-quality Carbon Steel P235GH
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Nominal Size: DN25 (1 inch)
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Pressure Rating: PN40 (medium pressure class)
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Connection Type: Butt Weld (BW) for strong, reliable joints
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Sealing Face: Raised Face (RF) to prevent leakage under pressure
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Standards: Complies with ASTM & EN1092-1 international standards
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Strengths: Excellent mechanical performance, heat resistance, and anti-corrosion properties
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Applications: Power plants, oil & gas, chemical industry, water treatment facilities, and general industrial piping
This flange combines precision engineering, robust construction, and global standard compliance, making it a versatile and cost-effective choice for engineers, contractors, and project managers seeking reliable pipeline solutions.
| Product Type |
Size |
Standard | Material | Pressure Class | Face Type | Connection Type | Applications |
|---|---|---|---|---|---|---|---|
| Carbon Steel Plate Flange | DN50 (2 inch) | ANSI B16.5 | Carbon Steel ASTM A105 / A516 | Class 150 | Raised Face (RF) | Welded or Bolted | Oil & Gas, Petrochemical, Water Treatment, Industrial Piping |
| Carbon Steel Slip-On Flange | DN15 - DN600 (½" – 24") | ANSI B16.5, ASME B16.47 | ASTM A105, Q235, Q345 | Class 150 – 300 | Flat Face (FF), Raised Face (RF) | Welded | Chemical, Power Plants, Water Supply |
| Stainless Steel Welding Neck Flange | DN15 - DN300 (½" – 12") | ANSI B16.5, ASTM A182 | Stainless Steel 304 / 316 / 316L | Class 150 – 600 | Raised Face (RF), Ring Type Joint (RTJ) | Welded | Food Processing, Pharmaceutical, Petrochemical |
Company Introduction — Hebei Cangtie Industrial Co., Ltd
Hebei Cangtie Industrial Co., Ltd is a professional manufacturer and exporter of flanges and pipe fittings, including threaded flanges, socket weld flanges, slip-on flanges, weld neck flanges, elbows, reducers, and customized parts.
Our factory in Yanshan Economic Development Zone, Cangzhou City, Hebei Province, China is equipped with CNC lathes, forging presses, machining centers, and advanced inspection equipment to ensure accuracy and quality.
We have over 10 years of export experience, supplying products that meet ASME, ANSI, DIN, JIS, EN, and GB standards to clients worldwide in oil & gas, petrochemical, marine, water treatment, and construction sectors.
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 in Hebei, China, specializing in stainless steel and carbon 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 offer OEM/ODM services?
Yes, we provide custom machining, surface treatment, packaging, and logo marking.
5. What is your MOQ?
MOQ is typically 1 piece for standard products; customized items may vary.
6. Do you provide samples?
Yes, free samples for standard sizes; buyer covers shipping.
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 guarantee quality?
We conduct raw material inspection, dimensional verification, pressure/leak testing, and surface checks. Third-party inspection is available.
