Stainless steel flanges
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 03Х18Н11 | 1.4306 | ~304L | X2CrNi19-11 | Delivery from the stock, in stock | |
| 04Х18Н10 | EI842 | 1.4307 | 304L | X2CrNi18-9 | Delivery from the stock, in stock |
| 12Х18Н10Т | EP2 | 1.4541 | 321 | X12CrNiTi18-10 | Delivery from the stock, in stock |
Application
Stainless steel flanges used in the pipe for sealing the pipe joints and connections piping valves. Connect the flanges by bolts (or studs), nuts, or welding.
Range
Today the range of flanges is virtually unlimited. There are many domestic manufacturers. But because the foreign valves in a number of industries — increasingly in demand, the market provides the choice and import of steel flanges (according to DIN (ISO) 304 AISI) in the range of sections (DN15 — du150) operating at a pressure of 10 — 16 ATM.
Percentage composition 304 L
| AISI | C | Cr | Fe | Ni | V | Mn | P | S | Si | Impurities |
|---|---|---|---|---|---|---|---|---|---|---|
| 304 L | ≤0,03 | 18−20 | DOS. | 8−12 | --- | ≤2 | ≤0,045 | ≤0,03 | ≤1 | ≤0,15 |
For stainless steel flanges, standardized GOST and DIN (ISO) part of the center distance for the mounting bolts are different, so be careful when buying.
Classification
Stainless steel flanges are divided by the cross section, working pressure, shape of the sealing surface etc. According to the method of fastening has flanges collar (cooked butt) — GOST 12 821−80 and flat — GOST 12 820−80. Flat flanges (GOST 12 820−80) have a range of sections DN 10 — 1600, working pressure PN 1−250 ATM. The most common version — 1 (with the connecting protrusion). Flanges of steel 12KH18N10T use from -40°C to +300°C.
The chemical composition of the alloy 08KH18N10T
| Fe | Cr | C | Mn | S | P | Ni | Ti | Si |
|---|---|---|---|---|---|---|---|---|
| DOS. | From 17 to 19 | ≤0,08 | ≤2 | ≤0,02 | ≤0,035 | From 9 to 11 | 5·S-0,7 | ≤0,8 |
| Steel | C | Cr | Fe | Ni | Ti | Mn | P | S | Si | Impurities |
|---|---|---|---|---|---|---|---|---|---|---|
| 12KH18N10T | ≤0,12 | 17−18 | DOS. | 9−10 | ≤0,8 | ≤2 | ≤0,03 | ≤0,02 | ≤0,8 | ≤0,15 |
Neck flanges (GOST 821−80 12) provided with a conical protrusion for welding to the pipe. The name of this flange is received in the form of a connection end of the tube-type collar. Collar flanges have a larger number of sealing strips (execution 1−9). Version 1 typical flat flanges, collar can be used up to a pressure of 250 ATM Ru.
Supply
In stock, LLC «Electrocentury-steel» a wide range of pipeline valves, in particular of stainless steel flanges at best price. In the technical documentation included data on performance of products. We can easily buy in bulk any semi-finished products for large-scale production. We also work with retail buyers. A high level of service, the product compliance with GOST and international quality standards, efficient service are the face of our company.
Buy at best price
Provide unlimited assortment of high quality flanges all sizes of domestic and imported manufacturers. If you are not sure, it offers experienced managers who are always on call and ready to provide advice. Making an order from us, You will get certified products that comply with Russian and international quality standards in the shortest possible time. If You value your time, get in touch today with our branch offices in Russia or Ukraine, or make an order on the Internet.
