DIPTI METAL INDUSTRIES
ASTM A193 B7 Stud Bolts Manufacturer, ASTM A193 B7 Stud Bolt Exporter & ASTM A193 B7 Stud Bolt Supplier in Mumbai, India | B7 Threaded Rod
Dipti Metal Industries is a leading ASTM A193 B7 Stud Bolt Manufacturer, ASTM A193 B7 Stud Bolt Exporter, ASTM A193 B7 Stud Bolt Supplier and have a trusted B7 Stud Bolts Distributors globally. We manufacture high-tensile ASTM A193 Grade B7 Bolts, Heavy Hex B7 Bolts, and B7 Fully Threaded Stud Bolts derived from Quenched and Tempered Alloy Steel Stud Bolt Grades (AISI 4140) We hae exported Our DIPTI brands stud bolts to more than 65 countries. We have added in our prudction range whey buyers asked packages supply to Pipeline Projects.
Our fasteners are specifically designed for High Temperature B7 Bolts and High Pressure B7 Stud Bolts applications. We are a key B7 Stud Bolt Stockist offering Discount Price B7 Stud Bolts with options for Ready Stock ASTM A193 B7 Stud Bolts in sizes like M10 to M100 and 1/2" to 4" diameter.
As showcased, we supply complete bolting assemblies including B7 Studs with ASTM A194 2H Heavy Hex Nuts and Hardened Washers. We specialize in corrosion-resistant finishes, offering PTFE / Xylan Coated B7 Studs (in Blue, Red, or Green), Hot Dip Galvanized, and Black Oxide finishes to ensure longevity in harsh refinery and offshore environments. All products come with full Mill Test Certificates (MTC).
ASTM A193 B7 Specification & Standards
We strictly follow the ASTM A193 B7 Specification for our B7 Alloy Steel Stud Bolts. Below are the details for ASTM A193 B7 Chemical Composition and ASTM A193 B7 Mechanical Properties.
Chemical Composition (AISI 4140)
| Element | % Composition |
|---|---|
| Carbon (C) | 0.37 – 0.49% |
| Manganese (Mn) | 0.65 – 1.10% |
| Chromium (Cr) | 0.80 – 1.10% |
| Molybdenum (Mo) | 0.15 – 0.25% |
| Phosphorus (P) | ≤ 0.035% |
| Sulfur (S) | ≤ 0.040% |
| Silicon (Si) | 0.15 – 0.30% |
Mechanical Properties (Class 1)
| Property | Value (Metric/Imp) |
|---|---|
| A193 B7 Tensile Strength (min) | 860 MPa (125 ksi) |
| Yield Strength (min) | 720 MPa (105 ksi) |
| A193 B7 Hardness | Max 35 HRC |
| Elongation (min) | 16% |
| Reduction of Area | 50% |
| Service Temp | Up to 450°C (840°F) |
As per ASTM A193 / ASME SA193 B7 standards, our Heat Treated B7 Stud Bolts are processed as Quenched and Tempered B7 steel. We supply both ASTM A193 Class 1 & Class 2 fasteners. This ensures consistent ASTM A193 Bolting Material quality for critical Steam Service B7 Bolts and Pipeline Flange Bolts B7.
B7 Stud Bolt Dimensions & Size Chart
Check our A193 B7 Stud Bolt Size Chart and B7 Stud Bolt Weight Chart. We adhere to tight A193 B7 Bolt Tolerances and offer standard B7 Stud Bolt Threads per inch (UNC/UNF Threads B7). Compatible with A193 B7 Nut & Washer Compatibility standards.
| NPS (Inch) | Class 150 Dia × Length(mm) |
Class 300 Dia × Length(mm) |
Class 600 Dia × Length(mm) |
Class 900 Dia × Length(mm) |
Class 1500 Dia × Length(mm) |
Class 2500 Dia × Length(mm) |
|---|---|---|---|---|---|---|
| ½"-15NB Flange Bolts | ½" × 75 | ⅝" × 95 | ¾" × 110 | ¾" × 130 | ⅞" × 150 | 1" × 170 |
| ¾"-20NB Flange Bolts | ½" × 85 | ⅝" × 100 | ¾" × 120 | ¾" × 135 | ⅞" × 155 | 1" × 180 |
| 1"-25NB Flange Bolts | ½" × 90 | ⅝" × 110 | ¾" × 125 | ⅞" × 145 | 1" × 170 | 1" × 190 |
| 1¼"-32NB Flange Bolts | ⅝" × 100 | ⅝" × 120 | ⅞" × 140 | ⅞" × 160 | 1" × 185 | 1⅛" × 200 |
| 1½"-40NB Flange Bolts | ⅝" × 110 | ¾" × 130 | ⅞" × 150 | ⅞" × 170 | 1" × 195 | 1⅛" × 215 |
| 2"-50NB Flange Bolts | ⅝" × 120 | ¾" × 135 | ⅞" × 165 | ⅞" × 185 | 1" × 205 | 1¼" × 240 |
| 2½"-65NB Flange Bolts | ¾" × 130 | ⅞" × 150 | ⅞" × 170 | 1" × 200 | 1⅛" × 245 | 1¼" × 260 |
| 3"-80NB Flange Bolts | ¾" × 140 | ⅞" × 160 | 1" × 190 | 1⅛" × 225 | 1¼" × 265 | 1⅜" × 290 |
| 4"-100NB Flange Bolts | ¾" × 150 | ⅞" × 170 | 1" × 210 | 1⅛" × 250 | 1¼" × 300 | 1⅜" × 320 |
| 5"-125NB Flange Bolts | ⅞" × 160 | ⅞" × 180 | 1⅛" × 235 | 1¼" × 280 | 1⅜" × 330 | 1½" × 350 |
| 6"-150NB Flange Bolts | ⅞" × 170 | 1" × 200 | 1⅛" × 260 | 1¼" × 300 | 1⅜" × 360 | 1½" × 385 |
| 8"-200NB Flange Bolts | ⅞" × 180 | 1" × 220 | 1¼" × 300 | 1⅜" × 350 | 1½" × 400 | 1⅝" × 430 |
| 10"-250NB Flange Bolts | 1" × 190 | 1⅛" × 250 | 1¼" × 320 | 1⅜" × 380 | 1⅝" × 430 | 1¾" × 480 |
| 12"-300NB Flange Bolts | 1" × 210 | 1⅛" × 260 | 1⅜" × 350 | 1½" × 420 | 1¾" × 500 | 2" × 560 |
| 14"-350NB Flange Bolts | 1" × 230 | 1¼" × 300 | 1⅜" × 380 | 1½" × 460 | 1¾" × 540 | 2" × 600 |
| 16"-400NB Flange Bolts | 1⅛" × 250 | 1¼" × 330 | 1½" × 420 | 1⅝" × 500 | 1⅞" × 600 | 2¼" × 670 |
| 18"-450NB Flange Bolts | 1¼" × 280 | 1⅜" × 360 | 1⅝" × 450 | 1¾" × 540 | 2" × 650 | 2½" × 760 |
| 20"-500NB Flange Bolts | 1¼" × 300 | 1⅜" × 380 | 1¾" × 510 | 1⅞" × 580 | 2" × 700 | 2½" × 800 |
| 24"-600NB Flange Bolts | 1⅜" × 330 | 1½" × 430 | 2" × 580 | 2¼" × 700 | 2½" × 820 | 2¾" × 900 |
Popular Transactional Sizes
- 3/4" B7 Stud Bolt
- 1" B7 Stud Bolt
- Flange Stud Bolts B7 (Bulk Supply)
- ASTM A193 B7 Threaded Studs
- B7 Stud Bolt Lengthgth Range: Custom sizes available
Technical Guidance
Need installation help? Ask for our A193 B7 stud bolt installation guide and the Bolt Torque Chart B7. We also provide Custom Size B7 Stud Bolt manufacturing for non-standard Lengthgths.
Manufacturing, Coatings & Applications
B7 Stud Bolt Manufacturing
We are a B7 Stud Bolt Stockist capable of Bulk Supply B7 Stud Bolts.
Coating & Anti-Rust Options
Industry Applications
- B7 Stud Bolts for Oil & Gas
- B7 Stud Bolts for Petrochemical
- Power Plant B7 Studs
- Refinery Bolting Material
- Chemical Processing Bolts
Global Export: Serving Countries Worldwide
DIPTI Metal Industries is a truly global Alloy Steel B7 Exporter Worldwide, proudly supplying ASTM A193 B7 Stud Bolt Importers across every continent.
- India: Mumbai, Delhi, Chennai, Kolkata, Bangalore, Hyderabad
- UAE: Dubai, Abu Dhabi, Sharjah, Jebel Ali
- Saudi Arabia: Riyadh, Jeddah, Dammam, Jubail
- Qatar: Doha, Ras Laffan
- Oman: Muscat, Sohar, Salalah
- Kuwait: Kuwait City, Ahmadi
- Bahrain: Manama, Sitra
- Iraq: Baghdad, Basra, Erbil
- Iran: Tehran, Bandar Abbas, Isfahan
- Singapore: Singapore City
- Malaysia: Kuala Lumpur, Port Klang, Johor Bahru
- Indonesia: Jakarta, Surabaya, Balikpapan
- Thailand: Bangkok, Rayong, Laem Chabang
- Vietnam: Ho Chi Minh City, Hanoi, Haiphong
- Philippines: Manila, Cebu, Davao
- China: Shanghai, Beijing, Guangzhou, Tianjin, Qingdao
- Japan: Tokyo, Osaka, Nagoya, Yokohama
- South Korea: Seoul, Busan, Ulsan, Incheon
- Bangladesh: Dhaka, Chittagong
- Sri Lanka: Colombo, Kandy
- Myanmar: Yangon, Mandalay
- Kazakhstan: Nur-Sultan, Almaty, Atyrau
- Uzbekistan: Tashkent, Samarkand
- Turkmenistan: Ashgabat, Turkmenbashi
- Azerbaijan: Baku, Ganja
- Jordan: Amman, Aqaba
- Lebanon: Beirut, Tripoli
- Syria: Damascus, Aleppo (subject to trade regulations)
- Yemen: Sana'a, Aden (subject to trade regulations)
- Mongolia: Ulaanbaatar
- Nepal: Kathmandu
- Cambodia: Phnom Penh
- Laos: Vientiane
- Brunei: Bandar Seri Begawan
- Taiwan: Taipei, Kaohsiung
- Germany: Frankfurt, Hamburg, Munich, Düsseldorf, Berlin
- United Kingdom: London, Aberdeen, Manchester, Glasgow, Liverpool
- Netherlands: Rotterdam, Amsterdam, The Hague
- France: Paris, Marseille, Lyon, Le Havre, Bordeaux
- Italy: Milan, Rome, Genoa, Venice, Naples
- Spain: Madrid, Barcelona, Valencia, Bilbao
- Russia: Moscow, Saint Petersburg, Kazan, Novorossiysk
- Poland: Warsaw, Krakow, Gdansk
- Belgium: Antwerp, Brussels, Ghent
- Sweden: Stockholm, Gothenburg, Malmö
- Norway: Oslo, Bergen, Stavanger, Trondheim
- Finland: Helsinki, Tampere, Turku
- Denmark: Copenhagen, Aarhus, Odense
- Portugal: Lisbon, Porto, Sines
- Greece: Athens, Thessaloniki, Patras
- Turkey: Istanbul, Ankara, Izmir
- Switzerland: Zurich, Geneva, Basel
- Austria: Vienna, Salzburg, Linz
- Ireland: Dublin, Cork
- Czech Republic: Prague, Brno
- Romania: Bucharest, Constanta
- Ukraine: Kyiv, Odesa (subject to current events)
- Hungary: Budapest, Debrecen
- Croatia: Zagreb, Split
- Serbia: Belgrade, Novi Sad
- Bulgaria: Sofia, Varna
- Slovakia: Bratislava, Kosice
- Lithuania: Vilnius, Kaunas
- Latvia: Riga, Liepāja
- Estonia: Tallinn, Tartu
- Slovenia: Ljubljana, Maribor
- Cyprus: Nicosia, Limassol
- Malta: Valletta, Birkirkara
- Iceland: Reykjavik
- Luxembourg: Luxembourg City
- Belarus: Minsk, Gomel (subject to trade regulations)
- Bosnia and Herzegovina: Sarajevo
- North Macedonia: Skopje
- Albania: Tirana, Durres
- Moldova: Chisinau
- Montenegro: Podgorica
- Kosovo: Pristina
- USA: Houston, Los Angeles, New York, Chicago, New Orleans, Philadelphia
- Canada: Calgary, Edmonton, Vancouver, Toronto, Montreal, Halifax
- Mexico: Mexico City, Monterrey, Guadalajara, Veracruz, Ciudad del Carmen
- Panama: Panama City, Colón
- Trinidad & Tobago: Port of Spain, San Fernando
- Costa Rica: San José, Puerto Limón
- Guatemala: Guatemala City, Puerto Quetzal
- Honduras: Tegucigalpa, Puerto Cortés
- Nicaragua: Managua, Corinto
- El Salvador: San Salvador, Acajutla
- Jamaica: Kingston, Montego Bay
- Dominican Republic: Santo Domingo, Santiago
- Cuba: Havana, Santiago de Cuba (subject to trade regulations)
- Bahamas: Nassau, Freeport
- Barbados: Bridgetown
- Puerto Rico: San Juan
- Belize: Belize City
- Brazil: São Paulo, Rio de Janeiro, Salvador, Curitiba, Santos
- Argentina: Buenos Aires, Cordoba, Rosario, Bahia Blanca
- Chile: Santiago, Valparaíso, Concepción, Antofagasta
- Colombia: Bogotá, Medellín, Cartagena, Barranquilla
- Peru: Lima, Callao, Arequipa, Trujillo
- Venezuela: Caracas, Maracaibo, Puerto La Cruz (subject to trade regulations)
- Ecuador: Quito, Guayaquil, Manta
- Bolivia: La Paz, Santa Cruz, Cochabamba
- Uruguay: Montevideo, Salto
- Paraguay: Asunción, Ciudad del Este
- Guyana: Georgetown
- Suriname: Paramaribo
- French Guiana: Cayenne
- South Africa: Johannesburg, Durban, Cape Town, Sasolburg
- Nigeria: Lagos, Port Harcourt, Abuja, Kano
- Egypt: Cairo, Alexandria, Port Said, Suez
- Algeria: Algiers, Oran, Skikda
- Morocco: Casablanca, Rabat, Tangier
- Angola: Luanda, Lobito
- Kenya: Nairobi, Mombasa
- Tanzania: Dar es Salaam, Mwanza
- Ghana: Accra, Tema, Kumasi
- Mozambique: Maputo, Beira
- Cameroon: Douala, Yaoundé
- Libya: Tripoli, Benghazi (subject to current events)
- Tunisia: Tunis, Sfax
- Ethiopia: Addis Ababa, Dire Dawa
- Côte d'Ivoire: Abidjan
- Senegal: Dakar
- Zambia: Lusaka, Ndola
- Zimbabwe: Harare, Bulawayo
- DR Congo: Kinshasa, Lubumbashi
- Sudan: Khartoum, Port Sudan (subject to current events)
- Uganda: Kampala, Entebbe
- Gabon: Libreville, Port-Gentil
- Mauritius: Port Louis
- Reunion: Saint-Denis
- Djibouti: Djibouti City
- Eritrea: Asmara, Massawa
- Somalia: Mogadishu (subject to current events)
- Australia: Sydney, Melbourne, Perth, Brisbane, Adelaide, Darwin
- New Zealand: Auckland, Wellington, Christchurch
- Papua New Guinea: Port Moresby, Lae
- Fiji: Suva, Nadi
- New Caledonia: Nouméa
- Solomon Islands: Honiara
- Vanuatu: Port Vila
- Samoa: Apia
- Tonga: Nukuʻalofa
- Kiribati: South Tarawa
- Micronesia: Palikir
- Marshall Islands: Majuro
- Palau: Ngerulmud
- Tuvalu: Funafuti
- Nauru: Yaren
Technical Comparisons & FAQ
| Keyword Comparison | Details |
|---|---|
| ASTM A193 B7 EquivaLengtht | Often compared to AISI 4140 Stud Bolts or ISO 898-1 Class 10.9. |
| ASTM A193 B7 vs B7M difference | B7 is harder (Max 35 HRC). B7M is softer (Max 22 HRC) for Sour Service. |
| B7 vs B8 | B7 is Alloy Steel (High Strength). B8 is Stainless Steel (Corrosion Resistant). |
| ASTM A320 L7 vs A193 B7 | L7 is for Low Temperature (-100°F). B7 is for High Temperature (+840°F). |
| Alloy Steel B7 Fasteners | Standard bolting for pressure vessels, valves, flanges, and fittings. |
ASTM A193 B7 meaning refers to a standard specification for high-tensile alloy steel bolting materials for high temperature or high pressure service. It is chemically identical to Alloy Steel B7 Fasteners (AISI 4140).
B7 Studs have a minimum tensile strength of 125 ksi (860 Mpa), making them suitable as High Strength B7 Stud Bolts for critical flange connections.
Common alternatives include ASME SA193 B7 Studs (code equivaLengtht), B7M (for H2S), or Grade B16 (for higher heat).
Get a Quote for ASTM A193 B7 Stud Bolts
We are a A193 B7 Bolt Exporter and B7 Stud Bolt Stockist offering the Best Price A193 B7 Bolts.
Contact Dipti Metal Industries
Factory & Office
- DIPTI METAL INDUSTRIES
- No.9, Shreepati Castle, D-1,
10–11th Khetwadi Back Road,
Mumbai – 400004, India - Phone: +91-22-66381301
- WhatsApp: +91-9975266499
- Email: info@diptimetal.com