Stainless Steel 304, 304L, and
304H Flanges are popular grades of stainless steel known for their
exceptional corrosion resistance, making them an ideal choice for a wide range of
applications, especially when it comes to flanges. These flanges are essential components in
pipelines, industrial equipment, and various fluid handling systems. Here, we'll delve into
the key characteristics and advantages of Stainless Steel 304/304L/304H flanges in a concise
350-word overview.
Corrosion Resistance: The hallmark of these stainless steel grades is their
remarkable resistance to corrosion. Their composition, primarily consisting of iron,
chromium, and nickel, forms a passive oxide layer on the surface, protecting the material
from rust and corrosion in various environments, including acidic and chloride-rich ones.
Versatility: Stainless Steel 304/304L/304H flanges are highly versatile.
They are suitable for a broad spectrum of applications, including chemical processing, food
and beverage production, pharmaceuticals, and petrochemical industries. Their versatility
makes them the go-to choice for connecting and sealing pipelines and other fluid systems.
Strength and Durability: These stainless steel flanges offer excellent
mechanical properties, including high tensile strength and exceptional durability. They can
withstand harsh conditions and extreme temperatures, ensuring a long service life and
minimal maintenance requirements.
Easy Fabrication: Stainless Steel 304, 304L, and 304H are easily machinable
and weldable, making them a preferred choice for various fabrication processes. This ease of
fabrication contributes to cost-effectiveness and efficient production in many industries.
Corrosion Protection: In high-temperature applications, Stainless Steel 304H
is the preferred choice due to its increased carbon content, which offers improved
high-temperature strength. This makes it a reliable option in environments where elevated
temperatures are a concern.
Compliance with Standards: Stainless Steel 304/304L/304H flanges typically
meet or exceed international standards and specifications, ensuring their compatibility with
various industry requirements and regulations.
Cost-Effective: While these flanges offer a wide array of advantages, they
remain cost-effective, providing a favorable balance between performance and price.
Manufacturing Process Of Stainless Steel 304 Flanges
Raw Material Selection
The manufacturing process of flanges begins with the careful selection of
raw materials.
Cutting and Shaping
Once the raw materials are selected, they undergo a precise cutting and
shaping process.
Finishings and Coatings
Coating the materials to a specific temperature ensures they become
malleable, facilitating the shaping process.
Welding and Joining
These processes ensure secure and leak-proof connections, enhancing the
reliability and longevity.
Finishing and Quality Control
After this the buttweld fittings undergo comprehensive finishing and
quality control procedures.
Packaging and Delivery
To reach their destination in pristine condition, we employ careful
packaging techniques.
Specification Of SS 304L Flanges
Standard |
ASTM A182 / ASME SA182 |
Dimension |
ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092,
DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST
Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220,
BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
Flanges Size |
1/2" (15 NB) to 48" (1200NB) DN10~DN5000 |
Flange Face Type |
Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female
(LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large
Tongue & Groove, Groove |
Pressure Class |
PN 2.5 TO PN 400 |
Pressure Rating ANSI |
Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
Pressure Calculation in DIN |
6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
Table |
D, E, F, H |
Types |
Forged / Threaded / Screwed / Plate |
Form |
Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank
Flange, Welding Neck Flange, Hubbed Slip on Flange, Hubbed Threaded Flange,
Lapped Pipe End Flange. |
Flanges Marking |
All Flanges are marked as follows: Grade, Standard, Thickness, Heat No. (Or
according to the customer’s request.) |
Stainless Steel 304 Flanges Equivalent Grades
USA |
France |
North America |
Germany |
Germany |
Italy |
Japan |
Russia |
Spain |
Sweden |
UK |
European Union |
AISI |
AFNOR |
UNS |
DIN 17006 |
W.N. 17007 |
UNI |
JIS |
GOST |
UNE |
SIS |
BSI |
EURONORM |
304 |
Z 6 CN 18-09 |
S30400 |
X 5 CrNi 18 10 X 5 CrNi 18 12 |
1.4301 |
X 5 CrNi 1810 |
SUS 304 |
08KH18N10 06KH18N11 |
X 6 CrNi 19-10 |
23 32 |
304S15 304S16 |
X 6 CrNi 18 10 |
304L |
Z 2 CN 18-10 |
S30403 |
X 2 CrNi 18 11 |
1.4306 |
X 2 CrNi 1911 |
SUS 304L |
03KH18N11 |
X 2 CrNi 19-10 |
23 52 |
304S11 |
X 3 CrNi 18 10 |
304H |
- |
S30409 |
- |
1.4948 |
X 8 CrNi 1910 |
SUS F 304H |
- |
X 6 CrNi 19-10 |
- |
- |
- |
Chemical Composition of SS 304L Flanges
Grade |
C |
N |
Si |
P |
S |
Cr |
Mn |
Ni |
Fe |
304 |
0.08 max |
0.10 max |
0.75 max |
0.045 max |
0.030 max |
18.0 - 20.0 |
2.0 max |
8.0 - 10.5 |
Remainder |
304L |
0.03 max |
0.10 max |
0.75 max |
0.045 max |
0.030 max |
18.0 - 20.0 |
2.0 max |
8.0 - 12.0 |
Remainder |
304H |
0.04 - 0.10 |
0.10 max |
0.75 max |
0.045 max |
0.030 max |
18.0 - 20.0 |
2.0 max |
8.0 - 10.5 |
Remainder |
Mechanical Properties of SS 304 Flanges
Grade |
Tensile Strength (ksi) |
0.2% Yield Strength (ksi) |
Elongation% in 2 inches |
304 |
75 |
30 |
40 |
304L |
70 |
25 |
40 |
304H |
75 |
30 |
40 |
Types Of Stainless Steel 304H Flanges
304 Stainless Steel Slip-On Flanges
304L SS Weld Neck Flanges
304 Stainless Steel Socket Weld Flange
304 Stainless Steel Ring Type Joint Flange
304L Stainless Steel Threaded Flanges
304L Stainless Steel Forged Flange
304H Stainless Steel Lap Joint Flange
SS 304 Spectacle Blind Flange
Stainless Steel 304 Reducing Flanges
Stainless Steel 304 Square Flanges
Other Types Of Stainless Steel 304 Flanges
- SS 304 Slip On Flanges
- Stainless Steel 304H Socket Weld Flanges
- SS 304 Blind Flanges
- 304H Stainless Steel Weld Neck Flanges
- UNS S30403 Threaded Flanges
- UNS S30409 Screwed Flanges
- SS 304 Lap Joint Flanges
- Stainless Steel 304H Long Weld Neck Flanges
- 304 Stainless Steel Spectacle Blind Flanges
- UNS S30400 Plate Flanges
- ASTM A182 304 Stainless Steel Ring Type Joint Flanges
- 1.4306 Reducing Flanges
- Stainless Steel 304 Tongue & Groove Flanges
- 304 Stainless Steel Loose Flanges
- Stainless Steel 304 Forged Flanges
- 304L Stainless Steel Slip on Flanges
- 1.4948 Blind Flange
- 304H Stainless Steel Socket weld Flanges
- SS 304 Pipe Flanges
- Stainless Steel 304 Ring Type Joint Flanges
- Stainless Steel 304 Spectacle Blind Flanges
- 304 Stainless Steel SORF Flanges
- ASTM A182 304 Flat Face Flanges
- ASME B16.5 Stainless Steel 304L BLRF Flanges
- ASME SA182 304L Stainless Steel Nipoflange
- SS 304 SWRF Flange
- 304 Stainless Steel Male & Female Flanges
- Stainless Steel 304L Welding Neck Flange
- Stainless Steel 304 RTJ Flanges
- Stainless Steel 1.4301 PN 10 Flange
UNS S30400 Flanges Price, Dimension, Weight
SS 304 Flanges Industrial Application
Power Generation Industry
Export & Supply Destination of SS 304L Flanges
-
Europe
-
Asia & Middle East
-
Africa
-
America
-
Oceania
- Countries - Ireland, Bulgaria, Portugal, Netherlands,
Denmark, Luxembourg, Ukraine, Slovakia, Czechia/Czech
Republic, Norway, Switzerland, Italy, Romania, Azerbaijan,
Belgium, Latvia, Estonia, Moldova, Turkey, Lithuania,
Hungary, France, Austria, Spain, Monaco, Germany, Finland,
United Kingdom, Serbia, Russia, Liechtenstein, Belarus,
Cyprus, Croatia, Sweden, Greece, Malta, Poland.
- Cities - Nantes, Bydgoszcz, Dublin, Bielefeld,
Hamburg, Łódź, Antwerp, Athens, Stockholm, Varna, Bochum,
The Hague, Dresden, Turin, Wrocław, Nuremberg, Helsinki,
Karlsruhe, Nice, Murcia, Aarhus, Münster, Utrecht, Bari,
Warsaw, Düsseldorf, Duisburg, Vienna, Copenhagen, Augsburg,
Málaga, Constanța, Thessaloniki, Florence, Brno, Córdoba,
Alicante, Palma de Mallorca, Genoa, Lisbon, Leipzig,
Seville, Hanover, Dortmund, Poznań, Prague, Cluj-Napoca,
Bologna, Kraków, Sintra, Lyon, Riga, Sofia, Frankfurt am
Main, Toulouse, Malmö, Stuttgart, Cologne, Paris, Rome,
Bilbao, Marseille, Berlin, Valencia, Naples, Zagreb,
imișoara, Las Palmas, Bonn, Wuppertal, Mannheim, Essen,
Espoo, Munich, Tallinn, Milan, Gothenburg, Budapest,
Bucharest, Palermo, Madrid, Amsterdam, Szczecin, Vilnius,
Bremen, Kaunas, Lublin, Iași, Zaragoza, Plovdiv, Bratislava,
Galați, Rotterdam, Vila Nova de Gaia, Gdańsk, Barcelona.
- Countries - Philippines, Malaysia, Bahrain, Armenia,
Iran, South Korea, Jordan, Hong Kong, Bhutan, North Korea,
Myanmar, Maldives, China, Thailand, Japan, Russia, Mongolia,
Indonesia, Nepal, Iraq, Saudi Arabia, Singapore, Qatar,
United Arab Emirates, Sri Lanka, Egypt, Vietnam, Azerbaijan,
British, Kuwait, Afghanistan, Kyrgyzstan, Lebanon, Macau,
India, Oman, Israel, Taiwan, Turkey, Bangladesh.
- Cities - Ranchi, Yokohama, Busan, Guangzhou, Tehran,
Fukuoka, Surabaya, Jaipur, Medan, Kobe, Changsha, Shanghai,
Almaty, Baku, Foshan, Chittagong, Vadodara, Shymkent,
Manila, Wuhan, Xiamen, Taipei, Istanbul, Hefei, Zhongshan,
Khulna, Tokyo, Dubai, Hangzhou, Daegu, Wenzhou, Quezon City,
Ahmedabad, Caloocan, Hyderabad, Dongguan, Kabul, Chongqing,
Hyderabad, Bangkok, Ankara, Surat, Chennai, Bengaluru,
Novosibirsk, Suzhou, Kuala Lumpur, Chelyabinsk, Astana, Hong
Kong, Jeddah, Tianjin, Krasnoyarsk, Shenyang, Taoyuan,
Chengdu, Kaohsiung, Zhengzhou, Faisalabad, Omsk, Rawalpindi,
Osaka, Kolkata, Lahore, Xi'an, Sapporo, Taichung, Pune,
Baghdad, Zunyi, Seoul, Yekaterinburg, Izmir, Nagpur,
Beijing, Delhi, Tainan, Shenzhen, Shantou, Mumbai, Jakarta,
Lucknow, New Taipei City, Incheon, Tbilisi, Peshawar, Hanoi,
Kochi, Bandung, Pyongyang, Dhaka, Ho Chi Minh City, Nanjing,
Phnom Penh, Davao City, Quanzhou, Kawasaki, Yerevan, Yangon,
Riyadh, Kyoto.
- Countries - Barbados, Guyana, Grenada, Dominica,
Peru, Honduras, Suriname, Dominican Republic, Canada,
Guatemala, Belize, United States of America, Mexico, Antigua
and Barbuda, Bahamas, Colombia, Panama, Nicaragua, Ecuador,
Saint Vincent and the Grenadines, Chile, Trinidad and
Tobago, Bolivia, Argentina, Paraguay, El Salvador, Haiti,
Brazil, Costa Rica, Uruguay, Saint Lucia, Cuba, Jamaica,
Venezuela.
- Cities - Charlotte, Bogotá, Mexico City, Natal,
Quito, São Luís, Mérida, Córdoba, Dallas, Santa Cruz,
Valencia, Recife, Monterrey, Salvador, León, Santiago, El
Alto, Edmonton, Barranquilla, Caracas, San Diego, Managua,
Ciudad Guayana, Phoenix, Houston, Duque de Caxias, Puebla,
Porto Alegre, Trujillo, San Francisco, Havana, Manaus,
Montreal, Philadelphia, Ecatepec, Campinas, Jacksonville,
New York, São Gonçalo, Brasília, Maracaibo, Toronto,
Guadalajara, Chicago, Montevideo, Columbus, Fortaleza,
Tijuana, Belo Horizonte, Guatemala City, Lima, San Jose,
Hermosillo, Nezahualcóyotl, Rosario, San Antonio, Guarulhos,
Medellín, Calgary, Barquisimeto, Buenos Aires,
Port-au-Prince, Fort Worth, Curitiba, Goiânia, Belém,
Zapopan, Cali, Tegucigalpa, Acapulco, Denver, Campo Grande,
Rio de Janeiro, Los Angeles, Chihuahua, São Paulo, Ottawa,
Guayaquil, Ciudad Juárez, Indianapolis, Austin, Santo
Domingo.
- Countries - Australia, Solomon Islands, Kiribati,
Vanuatu, New Zealand, Micronesia, Palau, Tonga, Marshall
Islands, Tuvalu, Nauru, Fiji, Papua New Guinea, Samoa.
- Cities - Tauranga, Christchurch, Auckland,
Wollongong, Toowoomba, Adelaide, Melbourne, Papeete, Cairns,
Honiara, Nouméa, Bendigo, Wellington, Ballarat,
Albury–Wodonga, Townsville, Perth, Newcastle–Maitland,
Launceston, Sunshine Coast, Geelong, Gold Coast, Brisbane,
Port Moresby, Honolulu, Hamilton, Mandurah, Suva, Lae,
Canberra–Queanbeyan, Sydney, Central Coast, Darwin, Dunedin,
Palmerston North, Hobart.