Steel Flanges

Plate Flanges

Plate flanges for flanged pipe connections. Specify the mating flange, facing, material grade and dimensions when requesting a quote.

Material / grade
Carbon steel, Stainless steel, Alloy steel
Dimensions
DN15 – DN2000
Applicable standard
ANSI/ASME B16.5, DIN, JIS, GOST
Pressure rating
PN6 – PN400 / Class 150 – 2500

Product overview

Hua Chuang supplies plate flanges for industrial piping orders. Begin with the flange type and drawing required by the project so the quotation refers to the correct connection rather than a general flange size.

Purchase specification Include the standard and edition, nominal size, pressure designation, facing, material grade, bore and mating pipe details. Where the project specifies dimensions directly, send the drawing revision and identify the dimensions requiring inspection. Available combinations are confirmed for the individual quotation; the company's overall size range is not a guarantee for every flange type.

Inspection, documents and packing State the required material documents, inspection scope, marking and packing in your RFQ. These items, any proposed alternatives and the delivery schedule should be confirmed in the written quotation and order. Do not assume optional tests or documents are included.

Preparing your enquiry Send an itemized quantity, destination country or port, requested delivery date and the drawing or bill of materials if available. For mixed orders, give each line its own specification so products and quantities remain traceable.

Frequently asked question Can a plate flange be quoted from a drawing? Send the drawing with its revision, material specification, quantity and acceptance requirements. Any missing information or proposed departure should be resolved before the order is agreed.

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.

Technical specifications

Plate Flanges
Material / gradeCarbon steel, Stainless steel, Alloy steel
DimensionsDN15 – DN2000
Applicable standardANSI/ASME B16.5, DIN, JIS, GOST
Pressure ratingPN6 – PN400 / Class 150 – 2500
ApplicationIndustrial piping, Process piping, Pipeline connections, General engineering

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

Product information

  • Forged construction for high strength
  • Wide range of materials, sizes and pressure classes
  • Strict quality control with full traceability
  • Compliant with ASME, DIN, JIS and GOST
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?

Plate Flanges — Include the material grade, dimensions, applicable standard and quantity.

How are dimensions and service suitability confirmed?

Material / grade: Carbon steel, Stainless steel, Alloy steel; Dimensions: DN15 – DN2000; Applicable standard: ANSI/ASME B16.5, DIN, JIS, GOST 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.

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

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Buying guides

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