Steel Flanges

Pipe flanges — Carbon steel · CLASS 150 - CLASS 2500 · RF · Black paint

Specify the mating flange, nominal size, drilling pattern and facing together. A matching nominal size alone does not establish interchangeability between different flange standards. For weld neck flanges, include the pipe bore and wall thickness; for threaded designs, identify the thread standard. Select the gasket and bolting as part of the complete joint.

Material / grade
Carbon steel
Pressure designation
CLASS 150 - CLASS 2500
Facing
RF
Surface finish
Black paint

Product overview

Selection reference: Pipe flanges — Carbon steel · CLASS 150 - CLASS 2500 · RF · Black paint.

Selection identifiers: Material / grade: Carbon steel; Pressure designation: CLASS 150 - CLASS 2500; Facing: RF; Surface finish: Black paint.

Specify the mating flange, nominal size, drilling pattern and facing together. A matching nominal size alone does not establish interchangeability between different flange standards. For weld neck flanges, include the pipe bore and wall thickness; for threaded designs, identify the thread standard. Select the gasket and bolting as part of the complete joint.

Please confirm before quotation: Size designations / Specified standard.

Technical specifications

Pipe flanges — Carbon steel · CLASS 150 - CLASS 2500 · RF · Black paint
Material / gradeCarbon steel
Pressure designationCLASS 150 - CLASS 2500
FacingRF
Surface finishBlack paint
Catalogue referenceHC-0029

Confirm the material grade, dimensions, pressure class and standard together against the approved drawing before ordering. Schedule denotes wall thickness, not a pressure rating.

Ordering requirements

Prepare a clear request for quotation

Send a bill of materials or drawing with item quantities, material grades, dimensions, standard and edition, inspection documents, packing and destination. Identify any requirements that still need technical review.

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Procurement questions

What should I include in an inquiry?

Pipe flanges — Carbon steel · CLASS 150 - CLASS 2500 · RF · Black paint — Include the material grade, dimensions, applicable standard and quantity.

How are dimensions and service suitability confirmed?

Material / grade: Carbon steel The applicable standard, mating components and project design conditions must be reviewed together. Size, rating and material combinations are confirmed in the agreed quotation or drawing.

Can I request inspection documents?

List the material certificates, inspection records and traceability documents required by your project. Their scope and availability must be agreed before ordering.

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Request a quote

Include the material grade, dimensions, applicable standard and quantity.

Your request will be reviewed by our sales team.

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Buying guides

View certifications · Manufacturing and inspection