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Steel Flange Buying Guide: GOST 33259, carbon steel, ASTM A105 carbon steel and Export Packing

This article provides practical purchasing information for overseas buyers comparing steel flange standards, materials, inspection documents and export packing before sending an inquiry.

Views:   Post Date: 11/1/2026 7:00:05 PM

This purchasing note is generated from current flange product and export offer references. It is intended for overseas buyers who need to prepare a clearer inquiry for GOST 33259 plate flanges and related carbon steel flange orders.

Reference product focus

  • Quotation for GOST 33259 PN16 Type 01 Plate Flange 09G2S carbon steel for Eastern Europe Buyers: GOST 33259, plate flanges, carbon steel, DN50-DN1200
  • Quotation for ANSI B16.5 Class 150 Welding Neck Flange ASTM A105 carbon steel for Middle East Buyers: ANSI B16.5, welding neck flanges, ASTM A105 carbon steel, 1/2 inch-48 inch
  • Sell ANSI B16.5 Class 300 Slip On Flange ASTM A105 carbon steel for North America Buyers: ANSI B16.5, slip on flanges, ASTM A105 carbon steel, 1/2 inch-24 inch
  • Sell ANSI B16.5 Class 300 Welding Neck Flange carbon steel for Southeast Asia Buyers: ANSI B16.5, welding neck flanges, carbon steel, 1/2 inch-48 inch

These references show several common purchasing directions, including GOST 33259, ANSI B16.5, plate flanges, welding neck flanges, slip on flanges and carbon steel, ASTM A105 carbon steel. The exact quotation should still be based on the buyer's drawings, purchase list or project standard.

Buyer checklist before quotation

  • Standard and pressure rating: GOST 33259, ANSI B16.5
  • Flange type and facing: plate flanges, welding neck flanges, slip on flanges
  • Material grade and certificate: carbon steel, ASTM A105 carbon steel
  • Size range, quantity, coating, marking and export packing
  • Delivery schedule, destination port and required inspection documents

For quotation, buyers should avoid sending only a short product name. A complete inquiry normally includes standard, pressure rating, sealing face, material grade, size range, quantity, coating, certificate and packing method.

Hyupshin Flanges can prepare forged flanges, carbon steel flanges, ANSI B16.5 flanges, EN1092-1 flanges, DIN flanges, JIS B2220 flanges, KS B1503 flanges, BS flanges, SANS 1123 flanges, GOST flanges and AWWA flanges for industrial piping, water treatment, pump and valve connections, and stockist supply.

Quality and commercial points normally include material certificate, dimensional inspection, marking, anti-rust treatment, plywood pallet or case packing, delivery schedule and export documents.

Buyers can send drawings, standard, pressure, size, material and quantity to sale@hyupshin.cn. More product information is available at www.hsflanges.com.

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