Dipti Metal Industries logo DIPTI METAL INDUSTRIES
⚙️ Slip-On Flange Manufacturer 🔩 ASME B16.5 & EN 1092-1 Certified 🌍 Largest SO Flange Stockist & Exporter 🏆 MTC EN 10204 3.1 Certified 💧 Raised Face (RF) & Flat Face (FF) Available

Slip-On Flanges (SO Flange) - Leading Manufacturer, Biggest Exporter, Largest Stockist & Top Supplier of ASME B16.5 Flanges

DIPTI METAL INDUSTRIES – Your Premier Worldwide Slip On Flanges Manufacturer, Global Largest Slip On Flanges Stockist, Top Slip On Flanges Supplier, and Biggest ASME B16.5 Slip On Flanges Exporter for industrial piping systems. Established in 2009, we are an ISO 9001:2015 certified firm based in Mumbai, India, specializing in precision-engineered Forged Slip-On (SO) Flanges. The Slip-On flange is designed to be easily slipped over the pipe and then welded at both the hub (inside and outside) by means of fillet welds. This design makes it easy to align, requiring less precision cutting, and is ideal for low-pressure, large-scale piping systems.

Our Slip-On Flanges adhere strictly to international standards, including ASME B16.5 (Class 150 to Class 2500) and EN 1092-1 (PN6 to PN40), ensuring compliance across global projects. They are available in Stainless Steel (A182 F304/L, F316/L), Carbon Steel (A105/N), Alloy Steel, and Duplex/Super Duplex grades. As a major SO Flange Wholesaler and Largest Stockist, we maintain a large inventory for immediate dispatch globally. Every flange is forged for superior strength and supplied with full material traceability via EN 10204 3.1 MTCs.

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Forged Slip-On Flange (SO Flange) in Stainless Steel

Overview & Importance: The Advantage of Slip-On (SO) Flanges

A Slip-On Flange (often abbreviated as SO Flange) is one of the most widely used types of forged flanges in industrial piping. It is easily recognized by its large inner bore which allows the pipe to be "slipped" inside the flange before final welding. Unlike a Weld Neck flange, a Slip-On flange requires two fillet welds—one on the outside and one on the inside—to secure the pipe. This design simplifies fabrication by reducing the precision required for pipe cutting and alignment, which significantly lowers manufacturing costs and erection time.

The core advantage of the Slip-On Flange is:

As a major global Slip-On Flange manufacturer and Largest Slip On Flanges Stockist in Mumbai, DIPTI METAL INDUSTRIES provides an extensive range of SO Flanges, adhering strictly to ASME B16.5 (up to Class 2500, though generally limited to Class 600 or below) and European standard EN 1092-1 (PN rated flanges). We ensure every flange is a reliable component in your piping system. We stock other flange types too, like Weld Neck Flanges and Blind Flanges.

Key Features & Unmatched Benefits of Dipti Metal's Slip-On (SO) Flanges

Slip-On Flanges: Types, Dimensions, and Pressure Ratings

DIPTI METAL INDUSTRIES offers a comprehensive inventory of Slip-On Flanges in all standard sizes and pressure classes, ensuring immediate availability for project deadlines. We are a Top Slip On Flanges Manufacturer and Biggest Slip On Flanges Exporter in this range.

Available Slip-On Flange Types and Facings:

Dimensional and Pressure Capabilities:

Standard Nominal Size (NPS / DN) Pressure Class (ASME) Pressure Rating (EN)
ASME B16.5 1/2" to 24" Class 150, 300, 600 (Typically) N/A
ASME B16.47 26" to 60" Class 150, 300 (Series A / B) N/A
EN 1092-1 DN 15 to DN 1200 N/A PN 6, PN 10, PN 16, PN 25, PN 40
Finish Smooth Finish, Serrated Finish (for gasket seating), Zinc Plated, Hot-Dip Galvanized

We also supply associated fittings like Ring and Spacer Flanges, and Spectacle Blind Flanges to match Slip-On connections.

Material Grades: Full Range of Slip-On Flange Grades & Equivalents

As a Largest Stockist and Top Supplier, we provide Slip-On Flanges in every major material class, ensuring worldwide compatibility for corrosion, temperature, and pressure requirements.

Ideal for corrosive environments, typically specified as ASTM A182 forgings.

  • Common Grades: ASTM A182 F304/F304L, F316/F316L, F317, F321, F347, F310.
  • International Equivalents: EN 1.4301/1.4307 (304/L), EN 1.4401/1.4404 (316/L), JIS SUSF304/316.

The most common and cost-effective material, typically supplied as ASTM A105 or A350 for low temp.

Used for high-temperature service where creep strength is critical, typically specified as ASTM A182 forgings.

  • Common Grades: ASTM A182 F11, F22, F5, F9, F91.
  • International Equivalents: EN 1.7335 (F11), EN 1.7380 (F22), JIS SCMV2/3/4.

For superior corrosion resistance in aggressive chloride environments (offshore, desalination).

  • Common Grades: ASTM A182 F51 (2205), F53 (2507), F55 (Zeron 100).
  • International Equivalents: EN 1.4462 (F51), EN 1.4410 (F53), EN 1.4501 (F55).

For ultimate resistance against extreme corrosion, high-heat, and specific chemical media.

  • Nickel Grades: ASTM B564 UNS N06600 (Inconel 600), N06625 (Inconel 625), N10276 (Hastelloy C276).
  • Monel/Copper Grades: ASTM B564 UNS N04400 (Monel 400), C70600 (Cu-Ni 90/10).
  • Titanium Grades: ASTM B381 F2 (Commercially Pure Titanium).
  • Link: See full range of Nickel High Temperature Alloys.

For heat transfer, plumbing, and marine applications requiring anti-fouling or specific conductivity.

Slip-On Flanges: Adherence to International Specifications & Testing

Our Slip-On Flanges are manufactured in strict compliance with major international standards, ensuring safety and global compatibility. We are a Top Supplier specializing in both ASME and EN/DIN standards.

Category Applicable Standards (Primary) Compliance & Scope
Dimensional Standard ASME B16.5 (Pipe Flanges and Flanged Fittings), ASME B16.47 (Large Flanges), EN 1092-1 (Steel Flanges), DIN Flange Standards Defines all dimensions, tolerances, bolting patterns, and pressure-temperature ratings for Slip-On flanges.
Material Specification ASTM A105/N, ASTM A350, ASTM A182, ASTM B564, ASTM B381 Governing the chemical composition and mechanical properties of the starting forged material for the flange body.
Associated Bolting ASTM A193/A194 (Bolting for High Pressure/Temp Service) Ensures the correct bolting materials are used for the flange joint integrity.
Quality & Traceability EN 10204 3.1 Mandatory Mill Test Certificates, guaranteeing full material traceability from the forge shop.
Testing & Inspection PMI (Positive Material Identification), Hardness Testing, Hydrostatic Testing Ensuring correct alloy composition, mechanical soundness, and leak-tightness. We facilitate TPI by BV, TUV, DNV.

Applications: Where Biggest SO Flange Exporters Deliver Cost-Efficiency

Our Slip-On Flanges are the ideal choice for creating reliable, cost-effective, and permanent flanged joints in piping systems, especially where pressure conditions are moderate and cost control is essential.

As a Leading Slip-On Flange Manufacturer in Mumbai, DIPTI METAL INDUSTRIES ensures its products are crucial for the efficient and safe operation of these systems globally.

Global Export Network: Worldwide Slip On Flanges Distributor & Slip On Flanges Exporter of Slip-On Flanges

DIPTI METAL INDUSTRIES is a proud Worldwide Slip-On Flange Exporter, Global Slip On Flanges Supplier, Leading Slip On Flanges Stockist, and Major Slip On Flanges Wholesaler of ASME B16.5 Forged Flanges to over 190 countries worldwide. We guarantee compliant and rapid international delivery of all grades of SO Flanges for your critical projects.

Explore Our Slip-On Flanges Extensive Global Reach (Illustrative Markets with Major Cities)

  • Afghanistan - Kabul
  • Albania - Tirana
  • Algeria - Algiers, Oran
  • Andorra - Andorra la Vella
  • Angola - Luanda
  • Anguilla - The Valley
  • Antarctica - Palmer Station
  • Antigua and Barbuda - St. John's
  • Argentina - Buenos Aires, Cordoba
  • Armenia - Yerevan
  • Aruba - Oranjestad
  • Australia - Sydney, Melbourne, Brisbane
  • Austria - Vienna, Graz
  • Azerbaijan - Baku, Sumqayit
  • Bahamas - Nassau
  • Bahrain - Manama, Sitra
  • Bangladesh - Dhaka, Chittagong
  • Barbados - Bridgetown
  • Belarus - Minsk
  • Belgium - Brussels, Antwerp, Ghent
  • Belize - Belmopan, Belize City
  • Benin - Porto-Novo, Cotonou
  • Bermuda - Hamilton
  • Bhutan - Thimphu
  • Bolivia - La Paz, Santa Cruz
  • Bosnia and Herzegovina - Sarajevo
  • Botswana - Gaborone
  • Brazil - São Paulo, Rio de Janeiro, Salvador
  • Brunei Darussalam - Bandar Seri Begawan
  • Bulgaria - Sofia, Varna
  • Burkina Faso - Ouagadougou
  • Burundi - Gitega, Bujumbura
  • Cambodia - Phnom Penh
  • Cameroon - Yaoundé, Douala
  • Canada - Toronto, Vancouver, Calgary, Montreal
  • Cape Verde - Praia
  • Cayman Islands - George Town
  • Central African Republic - Bangui
  • Chad - N'Djamena
  • Chile - Santiago, Valparaíso
  • China - Shanghai, Beijing, Guangzhou
  • Christmas Island - Flying Fish Cove
  • Cocos (Keeling) Islands - West Island
  • Colombia - Bogotá, Medellín, Cartagena
  • Comoros - Moroni
  • Congo, Dem. Rep. (Kinshasa) - Kinshasa
  • Congo, Rep. (Brazzaville) - Brazzaville
  • Cook Islands - Avarua
  • Costa Rica - San José
  • Côte D'ivoire (Ivory Coast) - Yamoussoukro, Abidjan
  • Croatia - Zagreb, Split
  • Cuba - Havana
  • Cyprus - Nicosia, Limassol
  • Czech Republic - Prague, Brno
  • Denmark - Copenhagen, Aarhus
  • Djibouti - Djibouti City
  • Dominica - Roseau
  • Dominican Republic - Santo Domingo
  • East Timor (Timor-Leste) - Dili
  • Ecuador - Quito, Guayaquil
  • Egypt - Cairo, Alexandria, Suez
  • El Salvador - San Salvador
  • Equatorial Guinea - Malabo, Bata
  • Eritrea - Asmara
  • Estonia - Tallinn, Tartu
  • Ethiopia - Addis Ababa
  • Falkland Islands - Stanley
  • Faroe Islands - Tórshavn
  • Fiji - Suva
  • Finland - Helsinki, Tampere
  • France - Paris, Lyon, Marseille
  • French Guiana - Cayenne
  • French Polynesia - Papeete
  • French Southern Territories - Port-aux-Français
  • Gabon - Libreville, Port-Gentil
  • The Gambia - Banjul
  • Georgia - Tbilisi, Batumi
  • Germany - Berlin, Hamburg, Munich, Frankfurt
  • Ghana - Accra, Tema
  • Gibraltar - Gibraltar
  • Greece - Athens, Thessaloniki
  • Greenland - Nuuk
  • Grenada - St. George's
  • Guadeloupe - Basse-Terre, Pointe-à-Pitre
  • Guam - Hagåtña
  • Guatemala - Guatemala City
  • Guinea - Conakry
  • Guinea-Bissau - Bissau
  • Guyana - Georgetown
  • Haiti - Port-au-Prince
  • Holy See - Vatican City
  • Honduras - Tegucigalpa
  • Hong Kong - Victoria, Kowloon
  • Hungary - Budapest, Debrecen
  • Iceland - Reykjavik
  • India - Mumbai, Delhi, Chennai, Kolkata
  • Indonesia - Jakarta, Surabaya, Medan
  • Iran (Islamic Republic of) - Tehran, Isfahan
  • Iraq - Baghdad, Basra
  • Ireland - Dublin, Cork
  • Israel - Jerusalem, Tel Aviv
  • Italy - Rome, Milan, Naples
  • Ivory Coast - Abidjan
  • Jamaica - Kingston
  • Japan - Tokyo, Osaka, Nagoya
  • Jordan - Amman, Zarqa
  • Kazakhstan - Nur-Sultan, Almaty
  • Kenya - Nairobi, Mombasa
  • Kiribati - Tarawa
  • Korea, Dem. People's Rep. (North Korea) - Pyongyang
  • Korea, Rep. (South Korea) - Seoul, Busan, Ulsan
  • Kosovo - Pristina
  • Kuwait - Kuwait City, Ahmadi
  • Kyrgyzstan - Bishkek, Osh
  • Lao, People's Dem. Rep. - Vientiane
  • Latvia - Riga
  • Lebanon - Beirut, Tripoli
  • Lesotho - Maseru
  • Liberia - Monrovia
  • Libya - Tripoli, Benghazi
  • Liechtenstein - Vaduz
  • Lithuania - Vilnius, Kaunas
  • Luxembourg - Luxembourg City
  • Macau - Macao
  • Madagascar - Antananarivo
  • Malawi - Lilongwe
  • Malaysia - Kuala Lumpur, Johor Bahru, Port Klang
  • Maldives - Malé
  • Mali - Bamako
  • Malta - Valletta
  • Marshall Islands - Majuro
  • Martinique - Fort-de-France
  • Mauritania - Nouakchott
  • Mauritius - Port Louis
  • Mayotte - Mamoudzou
  • Mexico - Mexico City, Monterrey, Veracruz
  • Micronesia, Fed. Sts. of - Palikir
  • Moldova, Rep. of - Chișinău
  • Monaco - Monaco
  • Mongolia - Ulaanbaatar
  • Montenegro - Podgorica
  • Montserrat - Little Bay
  • Morocco - Rabat, Casablanca
  • Mozambique - Maputo
  • Myanmar, Burma - Naypyidaw, Yangon
  • Namibia - Windhoek
  • Nauru - Yaren
  • Nepal - Kathmandu, Pokhara
  • Netherlands - Amsterdam, Rotterdam
  • Netherlands Antilles - Willemstad
  • New Caledonia - Nouméa
  • New Zealand - Wellington, Auckland
  • Nicaragua - Managua
  • Niger - Niamey
  • Nigeria - Lagos, Port Harcourt, Abuja
  • Niue - Alofi
  • North Macedonia - Skopje
  • Northern Mariana Islands - Saipan
  • Norway - Oslo, Bergen
  • Oman - Muscat, Sohar, Salalah
  • Pakistan - Islamabad, Karachi, Lahore
  • Palau - Ngerulmud
  • Palestinian territories - Ramallah, Gaza
  • Panama - Panama City
  • Papua New Guinea - Port Moresby
  • Paraguay - Asunción
  • Peru - Lima, Callao
  • Philippines - Manila, Cebu City, Davao City
  • Pitcairn Island - Adamstown
  • Poland - Warsaw, Krakow, Gdansk
  • Portugal - Lisbon, Porto
  • Puerto Rico - San Juan
  • Qatar - Doha, Mesaieed, Ras Laffan
  • Reunion Island - Saint-Denis
  • Romania - Bucharest, Cluj-Napoca
  • Russian Federation - Moscow, St. Petersburg
  • Rwanda - Kigali
  • Saint Kitts and Nevis - Basseterre
  • Saint Lucia - Castries
  • Saint Vincent and the Grenadines - Kingstown
  • Samoa - Apia
  • San Marino - San Marino
  • Sao Tome and Principe - São Tomé
  • Saudi Arabia - Riyadh, Jeddah, Dammam, Jubail
  • Senegal - Dakar
  • Serbia - Belgrade
  • Seychelles - Victoria
  • Sierra Leone - Freetown
  • Singapore - Singapore City
  • Slovakia (Slovak Republic) - Bratislava
  • Slovenia - Ljubljana, Maribor
  • Solomon Islands - Honiara
  • Somalia - Mogadishu
  • South Africa - Pretoria, Johannesburg, Cape Town
  • South Sudan - Juba
  • Spain - Madrid, Barcelona, Valencia
  • Sri Lanka - Colombo, Kandy
  • Sudan - Khartoum, Port Sudan
  • Suriname - Paramaribo
  • Swaziland (Eswatini) - Mbabane, Manzini
  • Sweden - Stockholm, Gothenburg
  • Switzerland - Bern, Zurich, Geneva
  • Syria, Syrian Arab Republic - Damascus, Aleppo
  • Taiwan (Republic of China) - Taipei, Kaohsiung
  • Tajikistan - Dushanbe
  • Tanzania; officially the United Republic of Tanzania - Dodoma, Dar es Salaam
  • Thailand - Bangkok, Laem Chabang
  • Tibet - Lhasa
  • Timor-Leste (East Timor) - Dili
  • Togo - Lomé
  • Tokelau - Fakaofo
  • Tonga - Nukuʻalofa
  • Trinidad and Tobago - Port of Spain
  • Tunisia - Tunis
  • Turkey - Ankara, Istanbul, Izmir
  • Turkmenistan - Ashgabat
  • Turks and Caicos Islands - Cockburn Town
  • Tuvalu - Funafuti
  • Uganda - Kampala
  • Ukraine - Kyiv, Kharkiv
  • United Arab Emirates - Dubai, Abu Dhabi, Sharjah
  • United Kingdom - London, Manchester, Glasgow
  • United States - New York, Houston, Los Angeles, Chicago
  • Uruguay - Montevideo
  • Uzbekistan - Tashkent
  • Vanuatu - Port Vila
  • Vatican City State (Holy See) - Vatican City
  • Venezuela - Caracas, Maracaibo
  • Vietnam - Hanoi, Ho Chi Minh City
  • Virgin Islands (British) - Road Town
  • Virgin Islands (U.S.) - Charlotte Amalie
  • Wallis and Futuna Islands - Mata-Utu
  • Western Sahara - Laayoune
  • Yemen - Sana'a, Aden
  • Zambia - Lusaka
  • Zimbabwe - Harare

Why Choose Dipti Metal Industries for Your Slip-On Flange Needs? Your Global Advantage

Get a Quote Today for Your Slip-On Flanges Requirements!

Are you searching for dependable, high-quality Forged Slip-On Flanges (SO Flanges) in Stainless Steel, Carbon Steel, Alloy Steel, or Duplex that comply with ASME B16.5 or EN 1092-1 for your low-pressure piping systems? Contact Dipti Metal Industries, your expert global Slip-On Flange Manufacturer, Largest Slip On Flanges Stockist, Top Slip On Flanges Supplier, and Biggest Slip On Flanges Exporter, today to discuss your specific requirements or to request a personalized, custom quote. Our knowledgeable and responsive team is dedicated to providing you with the most effective, safest, and most reliable Slip-On Flange solutions. We guarantee long-term operational excellence and unparalleled project success in demanding environments.

Price guidance (non-binding): USD 0.80–500.00 per unit depending on material, size, class, quantity, and delivery terms. Final prices are quotation-based for these essential flange materials.

Contact Us

Company
DIPTI METAL INDUSTRIES
Address
No.9, Shreepati Castle, D-1, 10–11th Khetwadi Back Road, Mumbai – 400004, Maharashtra, India

Global export expertise: Seaworthy export packing • Full documentation & TPI. We are a worldwide Slip-On Flange Exporter of quality ASME B16.5 Flanges. Our full contact details are available on our Contact Us page.

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