Haihao Group Ships EN 1092-1 Stainless Steel Flanges to Russian Customer
Haihao Group has completed production and shipment of EN 1092-1 stainless steel flanges for a Russian industrial project. This batch includes plate flanges and blind flanges, available in two corrosion-resistant grades: 2507 super duplex stainless steel and AISI 316L stainless steel.
Product Specification Table
|
Item |
Details |
|
Product |
Plate flanges & blind flanges |
|
Standard |
EN 1092-1 |
|
Size & Pressure |
DN20 PN16, DN25 PN16 |
|
Type |
Type B, Raised Face |
|
Material |
2507 Super Duplex / AISI 316L (03Х17Н14М3) |
|
Special Requirement |
2507: Heat treatment, ferrite content 35-60% |
The EN 1092-1 plate flanges feature DN25 PN16, Type B raised face design. One variant is made from 2507 super duplex. Heat treatment is performed on this 2507 flange to maintain stable mechanical properties, with ferrite content controlled within 35–60% as required. The other DN25 PN16 plate flange uses AISI 316L stainless steel, also manufactured according to EN 1092-1.

EN 1092-1 Type B raised face plate and blind flanges, 2507 super duplex and AISI 316L for Russian piping project from Haihao Group
Besides plate flanges, the order contains DN20 PN16 Type B raised face blind flanges in AISI 316L grade. All these EN 1092-1 flanges follow European flange dimension standards, suitable for piping systems that demand reliable sealing and strong corrosion resistance. Our quality team carries out material verification and microstructure inspection for the 2507 flange to guarantee the ferrite phase percentage meets project technical requirements.
EN 1092-1 flanges are widely adopted across Russian chemical and process piping projects. The 2507 super duplex grade offers outstanding resistance to pitting and crevice corrosion, while AISI 316L performs well in general corrosive media. Every EN 1092-1 flange is fully inspected before packing, with complete material documentation prepared for site acceptance.
Haihao Group supplies a full range of EN 1092-1 flanges in duplex and austenitic stainless steel grades. We can control heat treatment and ferrite content for super duplex flanges, delivering plate flanges, blind flanges and other flange types to match European specification requirements.
