DIPTI METAL INDUSTRIES
Dipti Metal Industries is a Leading global EN 1092-1 Flange Manufacturer, EN 1092-1 PN 400 Flanges Supplier & EN 1092-1 PN 400 Flanges Exporter of flanges conforming to the European Standard EN 1092-1 in the PN 400 pressure rating (40.0 MPa / ~5800 PSI). PN 400 is an ultra-high-pressure rating, roughly comparable to ASME Class 2500, and is critical for severe applications like high-pressure feedwater and critical process lines. We supply key flange types, including Type 05 Blind, Type 11 Weld Neck, and Type 21 Integral flanges, in a comprehensive size range from DN10 up to DN200. We ensure material traceability and dimensional compliance for seamless integration into European and global piping networks. Our materials are sourced from the EN 10222 forging standard, guaranteeing certified performance.
Founded in 2009 in Mumbai, India, we are a global EN 1092-1 Flange Manufacturer and PN 400 Flange Exporter specializing in certified ultra-high-pressure flanges for international markets. Our manufacturing process guarantees that our PN 400 flanges adhere strictly to the dimensions, facing, and tolerances specified in the EN 1092-1 standard. We focus on efficiently supplying projects requiring these extremely high-pressure flanges, ensuring all forgings are procured and certified to the comprehensive EN 10222 material specification.
The EN 1092-1 standard is the primary specification for circular steel flanges for piping in Europe. PN 400 (Nominal Pressure 400 Bar) is an ultra-high-pressure rating, comparable to ASME Class 2500, and is strictly limited to small bore sizes (DN10 to DN200). This rating is essential for sectors like power generation (supercritical steam), petrochemical processing, and extreme-high-pressure hydraulic applications where the highest level of component integrity is required.
| Parameter | Specification |
|---|---|
| Design Standard | EN 1092-1:2018 |
| Nominal Pressure (PN) | PN 400 |
| Max Working Pressure | 40.0 MPa / 400 Bar / ~5800 PSI |
| Flange Face | Type B2 (Raised Face - Tongue & Groove) is common, but Types A and B1 are specified. |
| Common Flange Types | Type 05 (Blind), Type 11 (Weld Neck), Type 21 (Integral) |
PN 400 flanges use materials with the highest available strength and creep resistance, typically specialized EN 10222-2 grades.
| Forging Standard | Material Categories |
|---|---|
| EN 10222-2 | Creep-Resistant Steels (e.g., P250GH, 13CrMo4-5) |
| EN 10222-3 | Low-Temperature Steels (e.g., 12Ni14, X8Ni9) |
| EN 10222-4 | High-Yield Steels (e.g., P355NH, P285QH) |
| EN 10222-5 | Stainless & Duplex Steels (e.g., 1.4404, 1.4571) |
Materials are supplied with EN 10204 3.1 for use in pressure equipment (PED).
This comprehensive list details the various EN 10222 grades we supply and manufacture into PN 400 Flanges and other pressure components. All are sourced with certified EN 10204 3.1 documents.
| Material Name | Standard | Material Number | EN 10222 Part / Category |
|---|---|---|---|
| EN 10222-2: Creep-Resistant & High-Temp Steels | |||
| P250GH | EN 10222-2 | 1.0460 | General Pressure / High-Temp |
| P245GH | EN 10222-2 | 1.0352 | General Pressure / High-Temp |
| P280GH | EN 10222-2 | 1.0426 | General Pressure / High-Temp |
| 16Mo3 | EN 10222-2 | 1.5415 | Creep-Resistant / Mo Alloy |
| 13CrMo4-5 | EN 10222-2 | 1.7335 | Creep-Resistant / Cr-Mo Alloy |
| 11CrMo9-10 | EN 10222-2 | 1.7383 | Creep-Resistant / Cr-Mo Alloy |
| X16CrMo5-1+NT | EN 10222-2 | 1.7366 | Creep-Resistant / High Alloy |
| X20CrMoV11-1 | EN 10222-2 | 1.4922 | Creep-Resistant / High Alloy |
| X10CrMoVNb9-1 | EN 10222-2 | 1.4903 | Creep-Resistant / High Alloy (Grade 91) |
| EN 10222-3: Low-Temperature (Cryogenic) Steels | |||
| 15NiMn6 | EN 10222-3 | 1.6228 | Low-Temp / Fine Grain Steel |
| 13MnNi6-3 | EN 10222-3 | 1.6217 | Low-Temp / Fine Grain Steel |
| 12Ni14 | EN 10222-3 | 1.5637 | Low-Temp / 3.5% Nickel Steel |
| X12Ni5 | EN 10222-3 | 1.5680 | Low-Temp / 5% Nickel Steel |
| X8Ni9 | EN 10222-3 | 1.5662 | Low-Temp / 9% Nickel Steel (Cryogenic) |
| EN 10222-4: High-Yield Steels | |||
| P285NH | EN 10222-4 | 1.0477 | High-Yield / Normalized |
| P285QH | EN 10222-4 | 1.0478 | High-Yield / Quenched |
| P355NH | EN 10222-4 | 1.0565 | High-Yield / Normalized |
| P355QH1 | EN 10222-4 | 1.0571 | High-Yield / Quenched |
| EN 10222-5: Stainless & Duplex Steels | |||
| X2CrNi18-9 | EN 10222-5 | 1.4307 | Austenitic (304L Equivalent) |
| X2CrNiN18-10 | EN 10222-5 | 1.4311 | Austenitic (304N Equivalent) |
| X5CrNi18-10 | EN 10222-5 | 1.4301 | Austenitic (304 Equivalent) |
| X6CrNi18-10 | EN 10222-5 | 1.4948 | Austenitic (304H Equivalent) |
| X6CrNiTi18-10 | EN 10222-5 | 1.4541 | Austenitic (321 Equivalent) |
| X6CrNiNb18-10 | EN 10222-5 | 1.4550 | Austenitic (347 Equivalent) |
| X6CrNiTiB18-10 | EN 10222-5 | 1.4941 | Austenitic (Stabilized) |
| X2CrNiMo17-12-2 | EN 10222-5 | 1.4404 | Austenitic (316L Equivalent) |
| X2CrNiMo17-12-3 | EN 10222-5 | 1.4432 | Austenitic (316L High Mo) |
| X2CrNiMo18-14-3 | EN 10222-5 | 1.4435 | Austenitic (316L High Mo/Ni) |
| X2CrNiMoN17-11-2 | EN 10222-5 | 1.4406 | Austenitic (316LN Equivalent) |
| X2CrNiMoN17-13-3 | EN 10222-5 | 1.4429 | Austenitic (316LN High Mo) |
| X5CrNiMo17-12-2 | EN 10222-5 | 1.4401 | Austenitic (316 Equivalent) |
| X3CrNiMo17-13-3 | EN 10222-5 | 1.4436 | Austenitic (316 High Mo) |
| X6CrNiMoTi17-12-2 | EN 10222-5 | 1.4571 | Austenitic (316Ti Equivalent) |
| X2CrNiMoN22-5-3 | EN 10222-5 | 1.4462 | Duplex (2205 Equivalent) |
| X2CrNiMoN25-7-4 | EN 10222-5 | 1.4410 | Super Duplex (2507 Equivalent) |
The following table outlines the essential mating dimensions (in mm) for EN 1092-1 PN 400 Flanges, including the Outside Diameter (D), Bolt Circle Diameter (K), and Bolting details, critical for interchangeable assembly of Type 05, 11, and 21 flanges.
| DN | D (Outside Dia) | K (Bolt Circle Dia) | L (Bolt Hole Dia) | Bolting (Size) | N (Number of Bolts) |
|---|---|---|---|---|---|
| 10 | 125 | 85 | 18 | M16 | 4 |
| 15 | 145 | 100 | 22 | M20 | 4 |
| 25 | 180 | 130 | 26 | M24 | 4 |
| 40 | 220 | 165 | 30 | M27 | 4 |
| 50 | 235 | 180 | 30 | M27 | 8 |
| 65 | 290 | 225 | 33 | M30 | 8 |
| 80 | 305 | 240 | 33 | M30 | 8 |
| 100 | 370 | 295 | 39 | M36 | 8 |
| 125 | 415 | 340 | 39 | M36 | 12 |
| 150 | 475 | 390 | 42 | M39 | 12 |
| 200 | 585 | 490 | 48 | M45 | 16 |
UNIT: mm. Data extracted from EN 1092-1 Table 21, focusing on the PN 400 Mating Dimensions (D, K, L, N, Size).
Dimensions apply across all applicable flange types (05, 11, 21) for PN 400.
We manufacture the primary flange types mandated by EN 1092-1 in the PN 400 pressure class, utilizing certified EN 10222 forging grades to ensure full interoperability for ultra-high-pressure European systems.
The PN 400 class is used exclusively for the most critical ultra-high-pressure industrial and power generation applications where maximum reliability is paramount.
As a global EN 1092-1 Flange Exporter and Supplier, Dipti Metal Industries efficiently services European and international projects requiring large volumes of PN 400 flanges for demanding industrial installations.
Contact Dipti Metal Industries today for certified EN 1092-1 PN 400 Flanges of all types (05, 11, 21, etc.). Provide your required Flange Type, Nominal Size (DN), and Material (e.g., P250GH or 1.4404) for a competitive, customized quote and expert technical support.
Company
Dipti Metal Industries
Address
No.9, Shreepati Castle, D-1, 10–11th Khetwadi Back Road, Mumbai – 400004, Maharashtra, India
Phone +91-22-66381301 • +91-9975266499 (WhatsApp)
Email
info@diptimetal.com
•
diptimetal@gmail.com
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