93 companies for Steel Flanges ✓ B2B manufacturers, distributors & suppliers from 11 countries ✓ With special service for fast information and prices ✓
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276800 Rizhao, China
Shandong Herong Metal Products Co.,Ltd
- Slip on flange(DIN86029/DIN26030)
- Blind flange(DIN2527) - Blind flange
- Threaded flange(DIN2566) - Threaded flange
- Welding Neck flange(DIN2631/DIN2632…DIN2638) - Welding neck flange
- Welding Neck flange - Welding neck flange
- Plate flange(DIN2641/DIN2642/DIN2576…) - Plate flange/ flat flange
DescriptionWelding Neck Flange (WN)
A steel flange is a forged ring of steel designed to connect sections of pipe, valves, pumps, and other equipment in a piping system. It provides easy access for inspection, cleaning, and modification, making it essential in a wide range of industrial applications.
Types of Steel Flanges
- Long tapered hub for high-pressure applications
- Butt-welded to pipe for structural integrity
Slip-On Flange (SO)
- Slides over the pipe and is fillet welded
- Easy to install, suitable for low-pressure systems
Blind Flange (BL)
- Used to close off pipe ends or pressure vessels
- Ideal for testing flow or pressure
Socket Weld Flange (SW)
- Pipe inserted into the socket and fillet welded
- Common in small-bore piping systems
Threaded Flange (TH)
- Screwed onto pipe without welding
- Used in low-pressure, non-critical systems
Lap Joint Flange (LJ)
- Used with a stub end; allows easy alignment
- Common in systems requiring frequent disassembly
Orifice Flange
- Designed for flow measurement
- Contains pressure taps on both sides
Common Materials
- Carbon Steel: ASTM A105, A350 LF2 (for moderate temperatures)
- Stainless Steel: SS304, SS316 (corrosion-resistant)
- Alloy Steel: For high temperature or pressure environments
Standards
- EN 1092-1 (Europe)
- ASME B16.5 (USA)
- DIN (Germany)
- JIS B2220 (Japan)
Applications
- Oil & Gas pipelines
- Chemical and petrochemical plants
- Water treatment systems
- Power generation facilities
- Food & pharmaceutical processing
- HVAC and fire protection systems
Technical data
1. Standards & DimensionsSteel flanges are manufactured according to various international standards:StandardSize Range (DN)Pressure RatingsFace TypesEN 1092-1DN 10–DN 2000PN 2.5 to PN 100Flat Face (FF), Raised Face (RF), Tongue & GrooveASME B16.5½"–24"Class 150 to 2500RF, RTJ, FFDINDN 10–DN 1600PN 6 to PN 100RF, FF, TGJIS B222010A–1500A5K, 10K, 16K, 20KFF, RF 2. Pressure RatingsCommon pressure classes (EN & ASME equivalents):EN PN Rating (bar)ASME Class (psi)PN 10Class 150PN 16Class 300PN 25Class 400PN 40Class 600PN 63 / 100Class 900 / 1500 3. MaterialsMaterialStandardUsageCarbon SteelS235JR, S355, P245GH, P250GH, P265GH, ASTM A105, A350Oil, gas, water, steam systemsStainless SteelSS304, SS316Corrosion-resistant environmentsAlloy SteelASTM A182 F11/F22High temperature/pressure use 4. Face TypesTypeUse CaseRaised Face (RF)General purpose, most commonFlat Face (FF)Low-pressure, cast equipment connectionsRing-Type Joint (RTJ)High-pressure, leak-tight sealingTongue & Groove (TG)Precision alignment applications 5. Surface Finish (for sealing face)Finish TypeRa (μm) TypicalPurposeStock Finish3.2–12.5General-purpose RF flangesSmooth Finish≤3.2Serrated Finish3.2–6.3
Areas of application
- Oil & Gas pipelines
- Chemical and petrochemical plants
- Water treatment systems
- Power generation facilities
- Food & pharmaceutical processing
- HVAC and fire protection systems
DIN
PED
ISO
Show more iso9001, iso14001, iso45001
- Steel Flanges | Flanges | Blind Flanges
04683 Threna, Germany
VHG Threnaer Versorgungs- u. Handels GmbH & Co.KG
Trader ✓ Service provider ✓ Company Profile Send enquiry
- Steel Flanges | Flanges | Blind Flanges
- Steel Flanges | Flanges | Welding Neck Flanges
04671-071 São Paulo, Brazil
ABelt Correias, Polias, Engrenagens e Cremalheiras Industriais
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- Steel Flanges | Aluminium Flanges
68309 Mannheim, Germany
Abend Maschinenbau e.K.
Manufacturer ✓ Trader ✓ Service provider ✓ Company Profile Send enquiry
- Steel Flanges | Flanges | Special Flanges
- Steel Flanges | Flanges | Pipe Flanges
57629 Linden, Germany
Aldorf Maschinenbau GmbH
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- Steel Flanges | Loose-Type Flanges
- Steel Flanges | Blind Flanges | High-Quality Steel Flanges
75217 Birkenfeld-Gräfenhausen, Germany
BAUM Kunststoffe GmbH
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- Steel Flanges | Flanges | High-Quality Steel Flanges
10009 Beijing, China
beijing huadu heat exchange equipment factory
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- Steel Flanges | High-Quality Steel Flanges
- Steel Flanges
- Steel Flanges | High-Quality Steel Flanges
77871 Renchen, Germany
Chematec GmbH
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- Steel Flanges | Flanges | Blind Flanges
86-032 Niemcz, Poland
CNC Connect Pawel Nalewajk
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- Steel Flanges
41970 Santiponce, Sevilla, Spain
Comercial de Bridas del Sur SL
Manufacturer ✓ Trader ✓ Supplier ✓ Company Profile Send enquiry
- Steel Flanges | Flanges | Flanged Housings
34346 Hann. Münden, Germany
CONEXA GmbH PRAEZISIONSARMATUREN
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- Steel Flanges | Flanges | Blind Flanges
40764 Langenfeld, Germany
Damstahl GmbH
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- Steel Flanges | Flanges | Blind Flanges
03002 Shanxi, China
dingxiang guanjiaying flange forging co., ltd.
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- Steel Flanges | Flanges
- Steel Flanges | Flanges | High-Quality Steel Flanges
8580 Köflach, Austria
ERV G. Pinteritsch GmbH Edelstahlrohrverbindungen
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- Steel Flanges | Flanges | Blind Flanges
10713 Berlin, Germany
EuroBrücke GmbH
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About us
Show more As an internationally oriented company with headquarters in Zeuthen, near Berlin, we are characterized by competence and dynamism. Through our flexibility, comprehensive know-how, very good knowledge of the market and excellent relationships with suppliers and customers, we are always in a position to meet your desires and needs.
We have set ourselves as experts on the trade of pipe equipment and pipe flanges.
Our product range includes all standard products according to DIN, ANSI, EN and other standards in all available steels and stainless steels.
Thanks to our good and long-standing contacts with powerful international manufacturers we are able to make precise custom-made products according to drawings and customized solutions in our daily business.
Our competent staff is at your service for advice, support and to answer your questions at any time. Of course, we supply on time and reliably to any place in Europe, and also offer an excellent price/performance ratio.
Trust and fairness are our basic requirements for all business relationships, both with our customers and suppliers.
We strongly support you in order to always ensure timely and successful servicing of your orders. Only then we are really happy to have you satisfied in all of your needs or requirements!
We have set ourselves as experts on the trade of pipe equipment and pipe flanges.
Our product range includes all standard products according to DIN, ANSI, EN and other standards in all available steels and stainless steels.
Thanks to our good and long-standing contacts with powerful international manufacturers we are able to make precise custom-made products according to drawings and customized solutions in our daily business.
Our competent staff is at your service for advice, support and to answer your questions at any time. Of course, we supply on time and reliably to any place in Europe, and also offer an excellent price/performance ratio.
Trust and fairness are our basic requirements for all business relationships, both with our customers and suppliers.
We strongly support you in order to always ensure timely and successful servicing of your orders. Only then we are really happy to have you satisfied in all of your needs or requirements!
51766 Engelskirchen, Germany
EuroBrücke GmbH
Manufacturer ✓ Trader ✓ Supplier ✓ Service provider ✓ Company Profile Send enquiry
- Steel Flanges | Flanges | Blind Flanges
- Steel Flanges | Flanges | Blind Flanges
66386 Sankt Ingbert, Germany
FlamaTec Dipl.-Kfm. Peter Boecker
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- Steel Flanges | Flanges | Blind Flanges
06420 Könnern OT Bebitz, Germany
Flanschenwerk Bebitz GmbH
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- Steel Flanges | Flanges | High-Quality Steel Flanges
57078 Siegen, Germany
Flanschenwerk Hüttental GmbH
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- Steel Flanges | Flanges | High-Quality Steel Flanges
- Steel Flanges | Flanges | Blind Flanges
22848 Norderstedt, Germany
Fr. August Behrens GmbH
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- Steel Flanges | Flange Adapters
23813 Cortenova (LC), Italy
Galperti Srl
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- Steel Flanges | Flanges | High-Quality Steel Flanges
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