Standards Buyers Mention
- GOST 33259
- GOST 12820
- GOST 12821
- Project drawing or specification
GOST / CIS flange sourcing
GOST Flanges
This page targets GOST flange manufacturer China, GOST 33259 flange supplier, GOST 12820 flange and GOST 12821 flange RFQ searches from CIS-oriented projects.
Baolongda reviews the exact standard edition, DN, PN, flange type, facing, material grade, drawing and inspection route before confirming a forged flange quotation.
GOST Flange Search Intent
GOST searches are usually standard-led. The practical route is to quote against the buyer's drawing, standard callout and inspection requirement.
RFQ Fields
- DN and PN
- Flange type and facing
- Material grade
- Quantity and inspection documents
Market Fit
- Kazakhstan and CIS projects
- Oil and gas packages
- Industrial piping
- Replacement and project procurement
| RFQ data | GOST or project standard, DN, PN, type, sealing face, material, drawing if available, quantity and inspection requirement. |
|---|---|
| Materials | Carbon steel, low alloy steel, stainless steel and project-specific forged materials by review. |
| Inspection | MTC 3.1, heat treatment record, UT, MT/PT, PMI, dimensional inspection, marking and third-party inspection when required. |
| Related pages | Русская страница ГОСТ, EN 1092-1 / DIN flanges, ASME B16.5 flanges, Russian forged flange hub. |
GOST Flange FAQ
Buyer questions for CIS and project RFQs using GOST or GOST-related flange wording.
What GOST details should be sent?
Send the exact standard callout, DN, PN, type or execution, facing, material grade, quantity and any project drawing.
Can GOST requests be reviewed with ASME or EN alternatives?
They can be compared for sourcing discussion, but the final quotation should follow the buyer's stated standard or approved equivalent route.
Which documents matter for GOST flange orders?
Buyers usually need MTC 3.1, dimensional inspection, marking, heat treatment records and any third-party inspection required by the project.
Request GOST Flange Review
Email: fft@bldflanges.com | Phone / WhatsApp: +86 180 9217 8292