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2025 Stainless Steel Lap Joint Flange – Loose Flange for Oil and Gas

Product Description

Product Overview

Our 2025 Stainless Steel Lap Joint Flange with loose flange design is engineered for high-performance oil and gas piping systems. Made from premium stainless steel, this flange delivers excellent corrosion resistance, durability, and mechanical strength required in demanding industrial environments.

The lap joint flange design allows easy installation and removal without welding, reducing downtime and maintenance costs. This flange is ideal for oil and gas pipelines, petrochemical plants, and other industrial applications requiring secure, leak-proof connections and frequent assembly.

Key Features:

  • Material: Stainless Steel (2025 Grade)

  • Type: Lap Joint Flange with Loose Flange design

  • Superior corrosion resistance and mechanical durability

  • Enables quick installation and maintenance without welding

  • Suitable for oil & gas, petrochemical, 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

  • ASME B16.9 compliant for international standard compatibility

  • Available in seamless, welded, stamping manufacturing options

  • High corrosion resistance for demanding industrial environments

  • Lap joint flange connection for easy installation and disassembly

  • Suitable for oil & gas, chemical, petrochemical, water treatment, and food industry pipelines

  • 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

  • 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. 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?

  • In-stock: 3–5 working days

  • 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.

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