Carbon Steel High Pressure Flange

Parameters Our products Industry standard products Advantage range

Dimensional tolerance EN 1092-1 D grade accuracy ASME B16.5 standard grade Sealing surface fit ↑35%

Surface hardness (HV) 220-250 180-200 ↑22% Wear resistance

Hydrogen sulfide corrosion resistance NACE MR0175 certification No certification Life span in acidic environment ↑3 times

Application scenarios

Low temperature anti-brittle crack design

-46℃ Russian LNG project flange physical impact test:

CVN 45J (far exceeding ASTM A105 20J requirements)

Oil and gas pipeline case: Carbon steel high-pressure flange has been running continuously for 18 months in the North Sea oil field project (pressure 8.7MPa/sulfur-containing medium), with zero seal failure record (with DNV GL monitoring report)

Delivery guarantee:

Sea freight anti-rust packaging: VCI gas phase anti-rust film + desiccant

- 15-day emergency order channel (stock 10,000+ standard parts)

Certification badge wall:

PED 2014/68/EU · API 6A · ISO 9001:2015

Quality commitment

• Hardness gradient test: 3 points/carbon steel high-pressure flange, fluctuation ≤15HB

• UT ultrasonic flaw detection: sensitivity φ1.6mm flat bottom hole

• MPT magnetic particle detection: ASTM E709 standard

Traceability system: Carbon Steel High Pressure Flange is laser engraved with a unique ID, and supports online verification of material reports (scan the code to go directly to the database)

If you come to China, we look forward to your visit to our factory.