Steel Flanges

Pipe flanges — Carbon steel / Stainless steel · PN6 – PN63 · Protective oil

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 / Stainless steel
Pressure designation
PN6 – PN63
Surface finish
Protective oil
Catalogue reference
HC-0139

Product overview

Selection reference: Pipe flanges — Carbon steel / Stainless steel · PN6 – PN63 · Protective oil.

Selection identifiers: Material / grade: Carbon steel / Stainless steel; Pressure designation: PN6 – PN63; Surface finish: Protective oil.

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 / Stainless steel · PN6 – PN63 · Protective oil
Material / gradeCarbon steel / Stainless steel
Pressure designationPN6 – PN63
Surface finishProtective oil
Catalogue referenceHC-0139

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.

Contact our sales team

Procurement questions

What should I include in an inquiry?

Pipe flanges — Carbon steel / Stainless steel · PN6 – PN63 · Protective oil — Include the material grade, dimensions, applicable standard and quantity.

How are dimensions and service suitability confirmed?

Material / grade: Carbon steel / Stainless 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.

Contact sales

Request a quote

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

Your request will be reviewed by our sales team.

Ready to Work With Us?

Send us your drawings or specifications — our engineers will reply with a competitive quotation within 24 hours.

Get A Quote

Buying guides

View certifications · Manufacturing and inspection