Product Overview
Our 12 Inch ANSI B16.5 Class 300 Carbon Steel Lap Joint Flange is engineered for high-performance piping applications requiring secure, leak-proof connections with easy assembly and disassembly. Manufactured from premium carbon steel, this flange offers excellent mechanical strength and durability under high-pressure conditions.
Designed according to ANSI B16.5 standards, the lap joint flange provides compatibility with stub ends for quick installation and maintenance. Ideal for use in oil & gas, petrochemical, water treatment, and industrial sectors, it ensures reliable service in demanding environments.
Key Features:
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Material: Carbon Steel
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Size: 12 Inch (Nominal Diameter)
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Pressure Class: ANSI B16.5 Class 300
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Type: Lap Joint Flange
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High mechanical strength and durability
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Easy installation and removal without welding
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Suitable for oil & gas, petrochemical, water treatment, and industrial pipelines
Product Specifications
| Type (Stub End Category) | Material | Standard / Grade | Size Range (Nominal Diameter) |
|---|---|---|---|
| Long Pattern Stub End (Lap Joint) | Stainless Steel, Carbon Steel, Alloy Steel | ASME B16.9 / ASTM A403 WP304, etc. | DN15 – DN600 (1/2" – 24") |
| Short Pattern Stub End (Lap Joint) | Stainless Steel, Carbon Steel, Alloy Steel | ASME B16.9 / ASTM A403 WP316, etc. | DN15 – DN600 (1/2" – 24") |
| Tumble Joint Stub End | Stainless Steel, Carbon Steel, Alloy Steel | ASME B16.9 / ASTM A403 WP316L, etc. | DN15 – DN600 (1/2" – 24") |
| Welded Stub End | Stainless Steel, Carbon Steel, Alloy Steel | ASME B16.9 / ASTM A403 WP304L, etc. | DN15 – DN600 (1/2" – 24") |
| Seamless Stub End | Stainless Steel, Carbon Steel, Alloy Steel | ASME B16.9 / ASTM A403 WP321, etc. | DN15 – DN300 (1/2" – 12") |
| Stamping Stub End | Stainless Steel, Carbon Steel, Alloy Steel | ASTM A182 F316 / DIN EN, etc. | DN15 – DN150 (1/2" – 6") |
Key Features
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ASME B16.9 compliant for international standard compatibility
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Available in seamless, welded, stamping manufacturing options
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High corrosion resistance for demanding industrial environments
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Lap joint flange connection for easy installation and disassembly
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Suitable for oil & gas, chemical, petrochemical, water treatment, and food industry pipelines
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Offered in multiple grades (304, 304L, 316, 316L, 321) and sizes up to DN600
Company Introduction — Hebei Cangtie Industrial Co., Ltd
Hebei Cangtie Industrial Co., Ltd is a leading manufacturer and exporter of stainless steel and carbon steel pipe fittings, including stub ends, flanges, elbows, reducers, and other custom components.
Based in Yanshan Economic Development Zone, Cangzhou City, Hebei Province, we operate a modern production facility with advanced CNC machines, forging presses, welding lines, and inspection equipment to ensure quality and reliability.
With over 10 years of experience, our products conform to ASME, ANSI, DIN, JIS, EN, and GB standards, and are widely used in oil & gas, petrochemical, water treatment, shipbuilding, and other industries. We provide OEM/ODM services and export to Europe, North America, Southeast Asia, the Middle East, and more.
We are committed to providing high-quality pipe fittings and long-term value to customers worldwide.
Contact Us
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Contact Person: Hudson Liu
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Mobile / WhatsApp: +86 157 3370 8805
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Email: hudson@cangtiepipe.com
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Website: https://ctflange.com/
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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. We specialize in stainless steel and carbon steel pipe fittings.
2. What materials do you offer?
Stainless Steel: 304, 304L, 316, 316L, 321, etc.
Carbon Steel: ASTM A234 WPB, A105, Q235, Q345, etc.
Special materials are available upon request.
3. Which standards do your products comply with?
ASME B16.9 / B16.5, ANSI, ASTM, DIN, JIS, EN, GB and so on — with third-party inspection available.
4. Do you support OEM/ODM customization?
Yes, we offer custom fabrication, logo stamping, packaging, and sizing 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 are available for standard items; 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 guarantee product quality?
We conduct full quality control: raw material inspection, dimensional checks, surface finish review, and pressure/leakage testing. Third-party testing also available.
