API 605 Class 400 WELD NECK FLANGES

API 605 CLASS 400 WELD NECK FLANGE DIMENSIONS, API 605 #400 WELD NECK FLANGE BOLT CHART, API 605 400# WELD NECK FLANGE WEIGHT

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API 605 Class #400 Weld Neck Flange Weight

API 605 Class 400psi Weld Neck Flange Bolt Chart

API 605 Class 400 Weld Neck Flanges are designed for high-pressure piping systems, ensuring maximum strength, durability, and leak resistance. Also known as API 605 WNRF #400 (Weld Neck Raised Face), API 605 WNFF #400 (Weld Neck Flat Face), API 605 WNRTJ Flanges #400 (Ring Type Joint), and API 605 WN Flanges #400, these flanges are widely used in industries where reliability and performance are non-negotiable. At Tesco Steel & Engineering, we specialize in manufacturing weld neck flanges that meet strict API 605 standards, making them ideal for critical operations in high-stress environments.

Backed by a state-of-the-art factory in Mumbai, equipped with modern CNC machining, forging technology, and advanced quality control systems, our weld neck flanges are built with unmatched precision. Each flange undergoes rigorous non-destructive testing (NDT), dimensional checks, and pressure integrity tests, ensuring it performs flawlessly in demanding conditions. Known for our superior quality and high-tech manufacturing capabilities, Tesco Steel & Engineering has earned trust across global industries.

Our API 605 Class 400 Weld Neck Flanges are exported to the USA, UK, Germany, France, Italy, Saudi Arabia, UAE, Qatar, and many more countries. These flanges are extensively used in oil & gas transmission lines, offshore drilling rigs, petrochemical refineries, thermal and nuclear power plants, chemical processing units, and shipbuilding projects. With years of experience serving Western and Middle Eastern markets, Tesco Steel & Engineering continues to deliver high-performance flanges that meet international expectations of safety, reliability, and efficiency.

API 605 Class 400 Weld Neck Flange Dimensions

NPS	OD	D	B	H	A	G	K	L	No of Bolts	Stud Bolt Dia x L
26	660.4	850	95.25	155.35	698	711	781	38.1	28	1.3/8	279
28	711.2	915	101.65	165.35	740	762	838.2	41.3	24	1.1/2	298
30	762	970	107.95	176.35	794	819	895.4	41.3	28	1.1/2	311
32	812.8	1035	114.35	185.35	845	873	952.5	44.5	28	1.5/8	330
34	863.6	1085	117.55	193.35	899	927	1003.3	44.5	32	1.5/8	337
36	914.4	1155	125.45	206.35	952	981	1066.8	47.6	28	1.3/4	356
38	965.2	1205	130.25	212.35	1003	1035	1117.6	47.6	32	1.3/4	368
40	1016	1270	136.55	222.35	1054	1092	1174.8	50.8	32	1.7/8	387
42	1066.8	1320	139.75	230.35	1108	1143	1225.6	50.8	32	1.7/8	394
44	1117.6	1385	146.05	239.35	1159	1200	1282.7	54	32	2	413
46	1168.4	1440	152.45	250.35	1213	1257	1339.8	54	36	2	425
48	1219.2	1510	158.75	263.35	1267	1308	1403.4	60.3	28	2.1/4	451
50	1270.2	1570	163.55	274.35	1321	1362	1460.5	60.3	32	2.1/4	457
52	1320.8	1620	168.35	282.35	1372	1413	1511.3	60.3	32	2.1/4	470
54	1371.6	1700	176.25	295.35	1426	1470	1581.2	66.7	28	2.1/2	502
56	1422.4	1755	181.05	304.35	1480	1527	1632	66.7	32	2.1/2	508
58	1473.2	1805	184.15	312.35	1530	1578	1682.8	66.7	32	2.1/2	514
60	1524	1885	192.15	325.35	1584	1635	1752.6	73	32	2.3/4	546

Indications..

OD = Diameter at Weld Bevel
D = Overall Diameter of Flange
B = Minimum Thickness of Blind Flange
H = Length thru Hub
A = Diameter at Base of Hub
G = Outside Diameter of Raised Face
K = Bolt Circle Diameter
L = Diameter of Bolt Holes

Advantages of using API 605 Class 400 Weldneck Flanges

Weldneck flanges offer several advantages over other types of flanges, such as slip-on flanges. Here are some of the benefits of using weldneck flanges:

Superior Strength
Weldneck flanges have a long tapered hub that provides additional strength to the connection between the pipe and the flange. The welding process creates a permanent and durable bond that can withstand high pressure and extreme temperatures.

Versatility in Accommodating Different Pipe Sizes
Weldneck flanges are available in various sizes, making them suitable for use with pipes of different diameters. The flanges can also be used with pipes of different materials, such as stainless steel, carbon steel, and alloy steel.

Secure and Leak-Free Connection
The welding process creates a strong and leak-free connection between the pipe and the flange. This ensures that the piping system is safe and efficient, reducing the risk of leaks and other safety hazards.

Easy to Install and Maintain
Weldneck flanges are relatively easy to install, and the welding process can be completed quickly. The flanges are also easy to maintain, requiring only periodic inspection and maintenance to ensure that they are in good working condition.

Applications of API 605 Class 400 Weldneck Flange

Weldneck flanges are used in various industrial piping applications, including:

Oil and Gas Industry
Weldneck flanges are commonly used in oil and gas piping systems, where they are used to transport crude oil, natural gas, and other petroleum products.

Chemical Processing Industry
Weldneck flanges are used in chemical processing plants to transport various chemicals and materials.

Water Treatment Industry
Weldneck flanges are used in water treatment plants to transport water and other fluids.

Power Generation Industry
Weldneck flanges are used in power generation plants to transport steam, gas, and other fluids.

Price List of Weldneck Flanges

Prices for API 605 Class 400 Weldneck Flanges are very affordable.

Please click on the "Ask for Quote" button or click here to request the updated price list and ready stock information along with your requirement.
TESCO STEEL & ENGINEERING maintains a stock of all standard items and can export them at the best price.

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Countries we export to: API 605 Class 400 Weld Neck Flanges Manufacturers / Suppliers / Stockist in Kuwait, in UAE, in Germany, Saudi Arabia, West Africa, Iraq, Congo, Mexico, Bahra, Canada, Philippes, Thailand, Kenya, Oman, Malaysia, Turkey, Qatar, Sudan, Netherlands, Oman, Nigeria, Lithuania, Gabon, Russia, Vietnam, Angola, Bolivia, Indonesia, UK, Yemen, Italy, United States, Venezuela, Spain, Iran, Estonia, Kazakhstan, Algeria, Jordan, Ecuador, Portugal, Colombia, Libya, Chile, Peru, Iran, South Africa, Bangkok, Namibia, Jeddah, Afghanistan, Israel, Zambia, Macau, Morocco, Denmark, Taiwan, Norway, Belarus, North Macedonia, Lebanon, Sri Lanka, Bhutan, Bulgaria, Albania, Ukrae, Belgium, Fland, Slovokia, Tibet, Romania, France, Brazil, Tridad & Tobago, Fiji, Tunisia, Gambia, Mexico, Hungary, Zimbabwe, Mongolia, Ghana, Egypt, Kazakhstan, Czech Republic, Azerbaijan, Poland, Greece, Costa Rica, Kosovo, New Zealand, Croatia, Puerto Rico, Tanzania, Somalia.

Major Exporting Areas: API 605 #400 Weld Neck Flanges Manufacturers / Suppliers / Stockist in Moscow, Port-Of-Spain, Seoul, Montreal, Dubai, Kuala Lumpur, Aberdeen, Tehran, Bogota, Petaling Jaya, Melbourne, Abu Dhabi, Courbevoie, Edmonton, Ho Chi Minh City, Bangkok, Toronto, Muscat, Milan, Busan, Mexico City, Perth, La Victoria, Santiago, Rio de Janeiro, London, Karachi, Los Angeles, Manama, Geoje-si, Atyrau, Sydney, Riyadh, New York, Jeddah, Houston, Granada, Jakarta, Brisbane, Algiers, Kuwait City, Dubai, Hanoi, Doha, Al Jubail, Chiyoda, Cairo, Gimhae-si, Caracas, Lagos, Al Khobar, Madrid, Singapore, Calgary, Colombo, Ulsan, Istanbul, Ahvaz, Dammam, Dallas, Texas, Ankara, Sharjah, Vung Tau, Angola, Benin, Burundi, Botswana, Burkina Faso, Cameroon, Douala, Central African Republic, Republic of Congo, Democratic Republic of Congo, Côte d'Ivoire, Djibouti, Eritrea, Ethiopia, Equatorial Guinea, Gabon, Guinea, Kenya, Liberia,Malawi, Mali, Mauritania, Mauritius, Casablanca-Settat, Tanger-Tetouan-Al Hoceima, Fès-Meknès, Marrakesh-Safi, Oriental, Béni Mellal-Khénifra, Souss-Massa, Laâyoune-Sakia El Hamra, Rabat-Salé-Kénitra region, Mozambique, Temara, Niger, Rwanda, Senegal, Sierra Leone, Sudan, Tanzania, Togo, Uganda, Bangkok, Bangchan, Khlong Sam Wa, Gemopolis, Lard Krabang, Pathumthani, Bangkadi, Navanakorn, Samut Prakarn, Bangplee, Bangpoo, Saraburi, Nongkhae, SIL I/Land, Chachoengsao, 304 I/P, Gateway City, Wellgrow, Rayong, Amata City, Eastern Seaboard, Hemaraj Eastern Seaboard, Rojana, Soam Eastern, Chonburi, Amata Nakorn, Hemaraj Chonburi, Pinthong, Ayutthaya, Bangpa-in, Saha Ratna Nakorn, Nakornratchasima, Kabinburi, Prachinburi, HCMC, Tan Thuan Export Processing Zone, Bien Hoa, Dong Nai Province, Amata City Bien Hoa Industrial Park, Long Binh Techno Park, Binh Duong Province, Vietnam Singapore Industrial Park, My Phuoc Industrial Park, Ho Nai Industrial Zone, Bau Xeo Industrial Park, Long Thanh Industrial Zone, Long Duc Industrial Park, Duc Hao I, Tan Huong, Long Jiang, Tra Noc I/II, Hung Phu I, Hiep Phuoc Industrial Park, Phuoc Dong Industrial Park, Dinh Vu – Cat Hai Economic Zone.