Threaded flange, also called screwed flange or threaded pipe flange, is designed for piping systems where welding is not required. It is widely used in small-diameter and maintenance-oriented piping runs, and it is commonly specified when installation convenience, quick assembly, or field replacement matters. In a global supply context, buyers often search by threaded flange manufacturer, threaded flange supplier, and threaded flange factory, so those terms should appear naturally throughout the page.
As a professional threaded flange manufacturer and threaded flange supplier, we provide ASME B16.5 threaded flange options with NPT threaded flange and BSP threaded flange thread types. Depending on the project, the page should also cover carbon steel threaded flange, stainless steel threaded flange, forged threaded flange, and cast threaded flange so the page can capture both technical searches and procurement searches.
A threaded flange is a pipe flange that connects to a pipe by internal threads instead of welding. In practical pipeline use, this makes it suitable for service conditions where welding is limited, where maintenance access is important, or where quick installation is preferred. In Google’s eyes, this section should repeat the core phrase threaded flange and its synonym screwed flange more than once, but in a natural way.
Threaded flange is generally used in lower-pressure or small-diameter systems, while some buyers also compare it with higher-class flange options during project selection. That is why the page should not only explain “what it is,” but also show pressure class, material, thread type, and application context clearly.
We supply ASME B16.5 threaded flange, ANSI threaded flange, DIN threaded flange, EN threaded flange, and JIS threaded flange options for international projects. For engineering buyers, standard coverage is a trust signal, so this section should be one of the largest blocks on the page. NFI’s product page also uses an extensive standard matrix, which is exactly the kind of structure Google tends to associate with engineering-grade content.
Thread type is one of the most important procurement filters, so the exact terms NPT threaded flange and BSP threaded flange should be repeated in headings, body copy, and specification tables. Senrui’s own page also highlights NPT, BSP, and BSPT as common thread types.
Forged threaded flange is the preferred option for stronger mechanical performance and more demanding service. In engineering pages, this section should explain why forging is used, not just state that it exists. NFI’s page explicitly frames its flange content around high-temperature/high-pressure forging, raw material quality, and heat treatment, which is a strong model to borrow structurally.
Cast threaded flange is also available for suitable project requirements. This helps the page capture searches from buyers comparing forged threaded flange and cast threaded flange, while also creating a more complete product story.
This process section matters because the competitor page goes deep into production method, heat treatment, and material traceability instead of leaving the page at a shallow product-intro level.
This section should appear as both a table and a paragraph, because Google reads the table semantically and users scan the paragraph for quick confirmation. NFI’s page uses a pressure-class block and a separate specification block; that kind of duplicated technical presentation is exactly what makes a page feel more like an engineering reference page than a sales page.
Common grades include:
Common grades include:
NFI’s page is strong here because it does not stop at “carbon steel”; it expands to material family, grades, and related flange products. That kind of breadth is exactly what gives an industrial page more keyword surface area without looking artificial.
| Item | Specification |
|---|---|
| Product Name | Threaded Flange / Screwed Flange |
| Standards | ASME B16.5 / ANSI / DIN / EN / JIS |
| Thread Type | NPT / BSP / BSPT |
| Pressure Class | 150LB / 300LB / 600LB / 1500LB / 3000LB / 6000LB |
| Material | Carbon Steel / Stainless Steel / Alloy Steel |
| Manufacturing | Forged / Cast / CNC Machined |
| Face Type | RF / FF / RTJ |
| Size Range | Small diameter to project-specific dimensions |
| Application | Oil & Gas / Petrochemical / Utility / Industrial Piping |
This table is the core of the page. NFI’s page uses a very similar spec-first format with size, class, face type, threaded type, surface treatment, manufacturing process, and standards all exposed on-page.
| Grade | C% | Mn% | Si% | S% | P% | Cr% | Ni% | Mo% |
|---|---|---|---|---|---|---|---|---|
| A105 / A105N | 0.35 max | 0.6–1.05 | 0.1–0.35 | 0.040 max | 0.035 max | 0.30 max | 0.40 max | 0.12 max |
| Grade | Tensile Strength (MPa) | Yield Strength min. (MPa) | Elongation min. (%) | Reduction of Area min. (%) | Hardness HB max |
|---|---|---|---|---|---|
| A105 / A105N | 480 | 250 | 22 | 30 | 187 |
If you want the page to compete with pages like NFI’s, this chemistry/mechanical-property block is essential. That competitor page includes exactly these kinds of engineering data blocks, which is a big reason it reads like a reference page rather than a thin product listing.
This section is useful because NFI also exposes surface treatment as a searchable technical field, and it helps catch long-tail queries around finish, corrosion protection, and delivery condition.
Threaded flange is commonly used in:
Senrui’s own product page focuses on low-pressure systems, small-diameter pipelines, maintenance-friendly installation, and practical applications; that positioning is good, but it becomes much stronger when paired with the standard/specification depth above.
Senrui’s page also uses strengths like stable material sourcing, strict inspection, custom drawings, fast quotation response, and export experience, which is a good trust layer to keep in the page.
You may also need:
A threaded flange is used to connect pipes without welding, especially in systems where assembly convenience or maintenance access is important.
In industrial search language, threaded flange and screwed flange are commonly used as synonym-style terms.
The most common thread types are NPT threaded flange, BSP threaded flange, and BSPT threaded flange.
We supply carbon steel threaded flange, stainless steel threaded flange, and project-specific alloy grades.
Yes. We support custom drawings, standard adaptation, and project-specific technical requirements.
We can support multiple classes, including 150LB threaded flange, 300LB threaded flange, 3000LB threaded flange, and 6000LB threaded flange.
Send your inquiry with size, standard, thread type, material, pressure class, and quantity.
We will confirm the technical details and reply with a quotation.
