# LeKe Piping

> Flanges and pipe fittings manufacturing. Steel pipe supply.


## Posts

- [Weld Neck Flange Machining: From Blanks to Finished Features](https://www.lkpiping.com/weld-neck-flange-machining-process/): How does a weld neck flange take shape during machining?
- [ASME B16.9 Fitting Dimensions Guide: Elbows, Tees, Reducers and Caps](https://www.lkpiping.com/asme-b16-9-fitting-dimensions-guide/): Learn how to read ASME B16.9 elbow, tee, reducer and cap dimensions with LeKe Piping drawings, selected metric tables and an ordering checklist.
- [Stainless Steel Elbow Pressing Process](https://www.lkpiping.com/pressing-process-for-stainless-steel-elbows-a-cost-effective-manufacturing-method/): In the pipe fitting industry, different manufacturing methods are selected based on material, size, application requirements, and cost considerations.
- [Custom 2.1D 68 x 4 Seamless Elbow: Processing Case](https://www.lkpiping.com/non-standard-seamless-elbow-customization-case-study-key-points-on-processing-a-2-1d-68x4-special-multiple-elbow-and-cost-considerations/): In pipeline engineering, standard elbows can meet the vast majority of conventional requirements.
- [Custom High-Pressure Butt Weld Flange Inspection](https://www.lkpiping.com/custom-high-pressure-butt-weld-flanges-inspection-showcasing-superior-craftsmanship/): In high-pressure piping systems, every fitting plays a critical role in ensuring safety, reliability, and performance.
- [DN100 Seamless 2D Elbow: Mandrel Pushing Process](https://www.lkpiping.com/dn100-seamless-2d-elbow-mandrel-pushing-process/): Today, we’d like to introduce the DN100 seamless 2D elbow, which is manufactured using the mandrel pushing process.
- [Custom Welded Tapered Reducers](https://www.lkpiping.com/custom-welded-tapered-reducers/): Today I wanted to share a special product from Leke Piping: a custom-made welded tapered reducer.
- [DN50 90-Degree Hot Push Elbow Manufacturing](https://www.lkpiping.com/hot-push-elbow-manufacturing-process-dn50-90-degree/): Hot Push Elbow Manufacturing Process - DN50 90 Degree Hot push elbow in action.
- [Pipeline Steel: Grades, Properties and Selection](https://www.lkpiping.com/what-is-pipeline-steel/): Pipeline steel is a category of steel specifically used to manufacture pipeline transportation systems for oil and natural gas.
- [Slip-On vs Weld Neck Flanges: Key Differences](https://www.lkpiping.com/slip-on-flange-vs-weld-neck-flange-what-is-the-difference/): Slip on flanges and weld neck flanges are two common flange types used in industrial piping systems.
- [Weld Neck Flanges: Design, Uses, Standards and Selection](https://www.lkpiping.com/what-is-a-weld-neck-flange-design-uses-standards-and-buying-guide/): A weld neck flange, also called a welding neck flange or WN flange, is a forged flange with a long tapered hub and a butt-weld end designed to connect pipe sections, valves, fittings, and equipment in industrial piping systems.
- [ASTM A234 Pipe Fittings: WPB, WPC and Alloy Grades](https://www.lkpiping.com/astm-a234-pipe-fittings-complete-guide-to-wpb-wpc-wp5-wp9-wp11-wp22-wp91-and-wp911-grades/): ASTM A234 is the standard specification covering wrought carbon steel and alloy steel pipe fittings for moderate and high-temperature service.
- [API 5L vs API 5LX: Line Pipe Specification Terms](https://www.lkpiping.com/technical-guide-deciphering-the-difference-between-api-5l-and-api-5lx-in-line-pipe-specifications/): When sourcing line pipes for oil, gas, and water transmission systems, adherence to international standards is paramount to ensure structural safety under high-pressure environments.
- [ASME B16.9 Butt Weld Pipe Fittings: Selection Guide](https://www.lkpiping.com/asme-b16-9-butt-weld-pipe-fittings-guide-5-keys-to-professional-selection/): In critical industries like petrochemicals, power plants, high-pressure boilers, machinery, and civil construction, the safety and integrity of piping systems are non-negotiable.
- [Class 150 DN100 Stainless Steel Weld Neck Flanges for Corrosive Service](https://www.lkpiping.com/technical-guide-optimizing-class-150-dn100-stainless-steel-weld-neck-flanges-for-high-corrosion-piping-systems/): In industrial piping engineering, selecting the right flange connection is critical to preventing catastrophic leaks, especially in petrochemical, water treatment, and marine applications.
- [Sour-Service Steel Pipe: NACE MR0175 / ISO 15156 Guide](https://www.lkpiping.com/nace-mr0175-iso-15156-steel-pipe-complete-guide-to-sour-service-piping/): NACE MR0175/ISO 15156 is the global standard for materials in H₂S-containing (sour service) oil and gas environments.
- [NACE MR0175 / ISO 15156 for Steel Pipe](https://www.lkpiping.com/what-is-nace-mr0175-iso-15156-for-steel-pipes/): In piping systems, we frequently encounter standards for pipes and fittings that satisfy NACE MR0175/ISO 15156.
- [ASTM Standards for Piping Materials and Components](https://www.lkpiping.com/astm-standards/): The ASTM standards covers various types of steel pipes,tubes and fittings for high-temperature services,ordinary use and special applications such as fire protection use.
- [316L Stainless Steel Flanges: Properties and Applications](https://www.lkpiping.com/stainless-steel-316l-flange-the-silent-guardian-of-industrial-piping-systems/): In harsh environments of corrosion and high pressure, a reliable connecting component can determine the success or failure of an entire system.
- [Stainless Steel Flanges: Selection and Installation Guide](https://www.lkpiping.com/comprehensive-guide-to-stainless-steel-flanges-from-selection-to-installation/): Stainless steel flanges are indispensable connecting components in pipeline systems, highly valued for their exceptional corrosion resistance and durability.
- [Carbon Steel Flanges: Types and Selection](https://www.lkpiping.com/carbon-steel-flanges-for-industrial-piping-definition-types-selection/): Carbon steel flanges are foundational components in modern piping systems, delivering robust connections for pipelines, valves, and equipment across refining, power generation, water treatment, and chemical processing.
- [Stainless Steel Flanges: Types, Uses and Selection](https://www.lkpiping.com/stainless-steel-flanges-the-robust-backbone-of-industrial-piping-systems/): Stainless steel flanges, ubiquitous components in the industrial sector, serve as the primary connection method in piping systems, with their quality directly impacting the safety and reliability of the entire pipeline infrastructure.
- [SS 316 Pipe Fittings: Properties and Uses](https://www.lkpiping.com/what-is-ss-316-pipe-fittings/): SS 316 Pipe Fittings are fittings made from stainless steel grade 316, which is a molybdenum-bearing austenitic stainless steel.
- [Flange Types and Piping Connections](https://www.lkpiping.com/flanges-the-industrial-joints-that-connect-the-world/): In the vast ecosystem of modern industry, from continent-spanning oil and gas pipelines to towering chemical plant reactors and the essential water and heating systems in our daily lives, countless intricate piping systems function like a network of blood vessels, transporting various life-sustaining media.
- [Flange Inspection: Dimensions, Materials and Surface Checks](https://www.lkpiping.com/flange-inspection-and-related-information/): Flange inspection refers to the systematic technical evaluation of flanges, mainly focusing on testing their dimensional accuracy, material mechanical properties, surface quality, and sealing performance.
- [6060 vs 6063 Aluminium Alloys](https://www.lkpiping.com/comparing-6060-aluminum-and-aluminium-grade-6063/): In this article, we will compare two popular aluminum alloys: 6060 Aluminum and Aluminium Grade 6063.
- [Types of Pipe Fittings: Elbows, Tees, Reducers and Caps](https://www.lkpiping.com/what-are-different-types-of-pipe-fittings/): There are many different types of pipe fittings, each with their own unique purpose and design.

## Pages

- [Steel Pipe Weight Calculator](https://www.lkpiping.com/steel-pipe-weight-calculator/): Calculate theoretical weight from outside diameter, wall thickness, length and density.
- [Buttweld tee weight calculator](https://www.lkpiping.com/buttweld-tee-weight-calculator/): Select a straight or reducing tee, nominal sizes, pipe schedule and material. ASME B16.9 dimensions and a planning weight update instantly.
- [Buttweld pipe cap weight calculator](https://www.lkpiping.com/buttweld-pipe-cap-weight-calculator/): Calculate a theoretical cap weight using ASME B16.9 cap dimensions, your nominal wall thickness and selected material.
- [Pipe reducer weight calculator](https://www.lkpiping.com/pipe-reducer-weight-calculator/): Estimate the theoretical weight of concentric and eccentric pipe reducers.
- [Blind flange weight calculator](https://www.lkpiping.com/blind-flange-weight-calculator/): Choose NPS, pressure class and material to view ASME B16.5 blind flange dimensions, rotate the 3D model and estimate one-piece weight.
- [Threaded flange weight calculator](https://www.lkpiping.com/threaded-flange-weight-calculator/): Select NPS, pressure class and material. Reference dimensions, a 3D view and estimated one-piece weight update automatically.
- [Socket welding flange weight calculator](https://www.lkpiping.com/socket-welding-flange-weight-calculator/): Select NPS, pressure class and material. The ASME B16.5 dimensions, stepped socket and estimated single-piece weight update automatically.
- [Slip-on flangeweight calculator](https://www.lkpiping.com/slip-on-flangeweight-calculator/): Choose NPS, pressure class and material to view the dimensions, rotate the 3D model and estimate the weight of one slip-on flange.
- [Weld neck flange weight calculator](https://www.lkpiping.com/weld-neck-flange-weight-calculator/): Select NPS, pressure class and neck end pipe schedule. The drawing and dimensions update automatically to estimate the weight of one raised-face flange.
- [Home](https://www.lkpiping.com/): Manufactured flanges and pipe fittings. Carbon, stainless and alloy steel pipe supply. Bring us your product list, material requirements and drawings.
- [Quality & Inspection](https://www.lkpiping.com/quality-inspection/): Define inspection and documentation requirements before the order progresses.
- [Products](https://www.lkpiping.com/steel-pipe-flange-fittings/): Explore our flange and fitting manufacturing range and steel pipe supply. Choose a product family, then review the details needed for your enquiry.
- [Pipe Elbow & Bend](https://www.lkpiping.com/pipe-elbow-bend/): Pipe elbows and bends change the direction of a piping run.
- [Technical](https://www.lkpiping.com/technical/): Find flange, fitting and steel pipe references, dimension guides and weight calculators.
- [Elbow & Pipe Bend Weight Calculator](https://www.lkpiping.com/elbow-pipe-bend-weight-calculator/): Estimate theoretical weights for long-radius and short-radius elbows or custom pipe bends.
- [Forged Socket Weld Fittings](https://www.lkpiping.com/forged-socket-weld-fittings/): Socket weld forged fittings provide recessed sockets for welded pipe connections.
- [Forged Threaded Fittings](https://www.lkpiping.com/forged-threaded-fittings/): Forged threaded pipe fittings connect using specified pipe threads.
- [Pipe End Cap](https://www.lkpiping.com/pipe-cap/): Butt weld pipe caps close a pipe end through a welded connection.
- [Pipe Reducer](https://www.lkpiping.com/pipe-reducer/): Pipe reducers connect different pipe sizes. A concentric reducer has a common centre line; an eccentric reducer has an offset centre line.
- [Pipe Tee](https://www.lkpiping.com/pipe-tee/): Pipe tees create a branch connection in a welded piping run.
- [Lap Joint Flange](https://www.lkpiping.com/lap-joint-flange/): A lap joint flange works with a matching stub end.
- [Threaded Flange](https://www.lkpiping.com/threaded-flange/): Threaded flanges connect through an internal pipe thread.
- [Socket Welding Flange](https://www.lkpiping.com/socket-welding-flange/): Socket weld flanges have a recessed socket for the pipe end.
- [Blind Flange](https://www.lkpiping.com/blind-flange/): Blind flanges close a flanged connection.
- [Plate Flange](https://www.lkpiping.com/plate-flange/): Plate flanges are flat ring-type flanges.
- [Slip-On Flange](https://www.lkpiping.com/slip-on-flange/): Slip-on flanges fit over the pipe before welding.
- [Weld Neck Flange](https://www.lkpiping.com/weld-neck-flange/): Weld neck flanges connect to the pipe through a tapered hub and a butt-welded end.
- [Forged pipe fittings](https://www.lkpiping.com/forged-pipe-fittings/): Socket weld and threaded forged fittings. Start with the connection, fitting type, material and required class.
- [Steel Pipe Single](https://www.lkpiping.com/steel-pipe-single/)
- [Pipe Fittings Portfolio](https://www.lkpiping.com/pipe-fittings-portfolio/)
- [Pipe Flange Portfolio](https://www.lkpiping.com/pipe-flange-single/)
- [Contact Us](https://www.lkpiping.com/contact-us/): Email is the best starting point for drawings and item lists. WhatsApp is available for an initial discussion.
- [Welded Pipe Fittings](https://www.lkpiping.com/welded-pipe-fittings/): Elbows, tees, reducers and caps for welded piping direction changes, branch connections, size transitions and end closure.
- [Pipe Flange](https://www.lkpiping.com/pipe-flange/): Weld neck, slip-on, blind, socket weld, threaded, lap joint and plate flanges. Start with the connection, then confirm the standard, facing, material and class.
- [Steel pipe](https://www.lkpiping.com/steel-pipe/): API 5L line pipe is a key focus of our steel pipe supply. We also supply other carbon steel, stainless steel and alloy steel pipe options.
- [Inside the Factory](https://www.lkpiping.com/inside-the-factory/): Review flange and pipe fitting requirements with LeKe Piping. Product geometry, material, machining, inspection and documentation should be defined together.
- [Privacy Policy](https://www.lkpiping.com/privacy-policy/): LeKe Piping Co., Ltd. (“we,” “our,” or “us”) is committed to protecting your privacy.
- [About Us](https://www.lkpiping.com/about-us/): LeKe Piping manufactures flanges and pipe fittings and supplies steel pipe for industrial piping requirements.
- [News](https://www.lkpiping.com/news/): Product knowledge, manufacturing updates and project stories from LeKe Piping.

## Optional

- [Agent (MCP protocol)](websites-agents.hostinger.com/www.lkpiping.com/mcp)

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