X5CrNi18-10 Extruded Seamless Pipe

X5CrNi18-10 is the European designation for stainless steel grade 1.4301, commonly associated with AISI 304 and UNS S30400. JILAIDA factory manufactures and exports X5CrNi18-10 Extruded Seamless Pipe for projects that specify the EN material designation or require a seamless tubular product with defined dimensions and surface requirements. The grade combines chromium-nickel austenitic stainless steel characteristics with broad corrosion resistance and good fabrication performance.

Grade Identification

For international procurement, the material designation is often as important as the pipe itself. X5CrNi18-10 corresponds to material number 1.4301 under the European system and is widely related to 304 stainless steel designations used in other standards.

Why Extruded Seamless

Extrusion forms the tube from a heated billet through a die, producing a seamless tubular section without a longitudinal fusion weld. For projects that specifically require an extruded or seamless construction, this manufacturing route provides a continuous pipe body and a defined starting geometry for subsequent processing.

The extrusion route is also useful when the tube will undergo additional sizing, machining, or cold drawing. A controlled starting tube can serve as the basis for further dimensional reduction where the final application requires smaller diameters or thinner walls.

Dimensional Control

The standard dimensional range covers outside diameters from 6mm to 89mm and wall thicknesses from 3mm to 9mm. Where the project calls for a specific finished length or surface condition, these requirements should be confirmed together with the dimensional specification.

Material Characteristics

X5CrNi18-10 is an austenitic chromium-nickel stainless steel grade. Its approximately 18% chromium and nickel content provide the corrosion resistance associated with the 1.4301 / 304 family, while the material remains suitable for common forming and welding operations.

Corrosion Resistance

The chromium content supports the formation of a passive surface layer that helps protect the steel in many atmospheric and general industrial environments.

Fabrication Performance

The grade is widely used where stainless steel must be formed, machined, or welded during equipment fabrication. The exact fabrication method should be selected according to the pipe dimensions and project requirements.

Austenitic Structure

The austenitic structure gives the grade its characteristic combination of corrosion resistance and fabrication flexibility, which is one reason it is used across a wide range of industrial tubular applications.

Product Application

X5CrNi18-10 extruded seamless pipe can be considered for applications where the project specification calls for 1.4301 / X5CrNi18-10 material together with seamless construction.

Process and Fluid Systems

Suitable for selected chemical and process piping applications involving media compatible with the 304 stainless steel family.

Food and Beverage Equipment

Can be used for selected processing and conveying components where stainless steel construction and a cleanable surface are required.

Heat Exchanger Tubes

The seamless tube format can be used in selected heat transfer equipment where the specified dimensions and material grade are appropriate.

Instrumentation and Precision Tubing

The extruded tube can also serve as starting stock for subsequent cold drawing and dimensional reduction when smaller or more precise tube sizes are required.

Architectural and Structural Tubes

Selected architectural and structural applications can use the grade where its corrosion resistance and stainless steel appearance meet the project requirements.

From Extrusion to Final Size

One practical advantage of an extruded seamless tube is its suitability as starting material for further processing. Where the final specification requires a smaller outside diameter, reduced wall thickness, or tighter dimensional control, the extruded hollow can be used as the starting geometry for downstream drawing or sizing operations.

This makes the X5CrNi18-10 Extruded Seamless Pipe relevant not only as a finished seamless pipe, but also as an intermediate tube for precision applications. The appropriate processing route depends on the required final dimensions and the customer's specification.

Specification and Supply

For international projects, the material designation, dimensional standard, inspection requirements, and documentation should be confirmed together before production. This is particularly important when an RFQ is written to a regional standard while the buyer expects a material designation used in another standard system.

JILAIDA can coordinate the required material designation and order documentation according to the agreed specification. Customers should identify the required standard clearly in the RFQ so that the material, dimensions, testing, and certification requirements can be aligned before shipment.

Ordering Information

For an accurate quotation, please provide the following information:

1. X5CrNi18-10 / 1.4301 material requirement
2. Outside diameter
3. Wall thickness
4. Required length
5. Surface condition
6. End requirements, if applicable
7. Inspection and documentation requirements
8. Required quantity

The more complete the specification, the easier it is to confirm whether the standard dimensional range and processing route are suitable for the project.

FAQ

Q1: Is X5CrNi18-10 the same grade as 304?

A: X5CrNi18-10 is the EN designation for material number 1.4301 and is commonly associated with 304 stainless steel and UNS S30400. The grades are closely related, but the applicable standard determines the composition limits, product requirements, testing, and certification. Cross-standard equivalence should therefore be confirmed against the project specification rather than assumed automatically.

Q2: What is the material number for X5CrNi18-10?

A: The material number is 1.4301 under the EN designation system.

Q3: What sizes are available?

A: The standard dimensional range covers outside diameters from 6mm to 89mm, wall thicknesses from 3mm to 9mm, and lengths from 3000mm to 10000mm. The listed outside diameter tolerance is ±0.5mm and the wall thickness tolerance is ±0.3mm.

Q4: Why choose an extruded seamless tube instead of a welded tube?

A: An extruded seamless tube is formed without a longitudinal fusion weld, making it suitable for applications where seamless construction is specified. It can also provide a useful starting geometry for further drawing or sizing operations.

Q5: Can the tube be supplied with a polished surface?

A: Yes. The listed surface options include pickled and polished finishes. The required surface condition should be confirmed when placing the order.

Q6: Can this material be used for further cold drawing?

A: The extruded seamless tube can serve as starting stock for further dimensional reduction and precision processing. The suitability of a specific starting size depends on the required final diameter, wall thickness, and downstream process.

Q7: What information should be included in an RFQ?

A: Please provide the required material designation, outside diameter, wall thickness, length, quantity, surface condition, end requirements, and applicable inspection or documentation standard.

Q8: Can the material designation be shown on the inspection documents?

A: The material designation and applicable certification requirements should be specified in the purchase order. This allows the documentation to be prepared according to the agreed material and product standard.