Dipti Metal Industries logo DIPTI METAL INDUSTRIES
🔗 Primary Standard: ASTM A276 Grade: AISI 304H (UNS S30409 / EN 1.4948) Certifications: EN 10204 3.1, ASME SA276 🛡️ Shapes: Round, Square, Hex, Rods 🏭 Finish: Hot Finished, Cold Drawn

Stainless Steel ASTM A276 / AISI 304H Manufacturer, Supplier, & Exporter of Bars & Rods (UNS S30409, EN 1.4948)

DIPTI METAL INDUSTRIES is a leading ASTM A276 AISI 304H Manufacturer, reliable AISI 304H Supplier, and authorized AISI 304H Exporter under the DIPTI® brand. We specialize in high-carbon austenitic stainless steel, AISI 304H (UNS S30409, EN 1.4948, X6CrNi18-10), specifically engineered for high-temperature service with excellent creep resistance. We offer various profiles including Round, Square, and Hexagonal Bars, as well as Rods, predominantly with Hot Finished and Cold Drawn finishes. As a top ASTM A276 304H Manufacturers in India, we ensure full compliance to ASTM A276, ASTM A240, ASTM A182, ASME SA276, ASME SA240, and ASME SA182. As a trusted AISI 304H Stockiest and AISI 304H Importer with a robust global supply chain, we provide competitive pricing and expert support across AISI 304H in Mumbai and worldwide as an AISI 304H Distributor, prioritizing enhanced high-temperature strength and performance for critical applications.

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DIPTI Stainless Steel ASTM A276 / AISI 304H Round, Square, Hex Bars & Rods Manufacturer, Exporter, Supplier from Mumbai, India

About Dipti Metal Industries – Your Trusted AISI 304H Partner

Dipti Metal Industries is a globally recognized ASTM A276 304H Manufacturer, AISI 304H Exporter, and UNS S30409 Supplier of premium industrial raw materials. Specializing in Stainless Steel, Alloy Steel, Carbon Steel, Nickel Alloys, Copper Alloys, and Titanium, we are committed to delivering high-performance engineering materials worldwide. As one of the leading AISI 304H Manufacturers in India, our dedication to quality for high-carbon stainless steel for elevated temperature applications is unwavering.

What Defines Us

  • 45+ Years of Industrial Expertise as an AISI 304H Manufacturer
  • Worldwide Export Network & Global Certifications (e.g., ASME SA276 304H, EN 10088-3 1.4948)
  • Strict Quality Control with Complete MTC / Test Reports (e.g., ASTM A276 304H)
  • ISO-based manufacturing systems & international compliance
  • Worldwide Shipping – Europe, USA, Middle East, Africa, Asia (as an AISI 304H Exporter)
  • Reputed among EPC contractors, OEMs & global distributors

Our Commitment to You

As an ASTM A276 304H Supplier, we deliver precision-engineered metal products with guaranteed quality, traceability, and on-time delivery. Each order is handled with meticulous attention to material standards (including DIN 17440 304H, JIS SUS304H), dimensional tolerances, packaging, and export documentation.

  • Guaranteed Quality & Traceability (for UNS S30409 products)
  • Meticulous Attention to Standards & Tolerances (e.g., AS 1449 304H)
  • Secure & Compliant Export Packaging
  • Comprehensive Export Documentation

Key Features of AISI 304H Stainless Steel

Stainless Steel AISI 304H (UNS S30409 / EN 1.4948) is the high-carbon variant of the world’s most widely used austenitic stainless steel, specifically engineered for applications requiring excellent strength and creep resistance at elevated temperatures (typically above 500°C / 932°F). As a leading AISI 304H Supplier and ASTM A276 304H Stockiest, we highlight its core benefits:

Excellent High-Temperature Strength

The increased carbon content provides superior strength at elevated temperatures, essential for pressure vessel components, from an expert AISI 304H Manufacturer.

Enhanced Creep Resistance

Offers improved resistance to deformation under sustained stress at high temperatures over long periods, fulfilling requirements of an EN 1.4948 Exporter.

Good Oxidation Resistance

Maintains good resistance to oxidation in air at temperatures up to 870°C (1598°F), suitable for furnace components, meeting BS 970 304S31 standards.

Good Corrosion Resistance

Retains similar corrosion resistance properties to standard 304 in many environments, compliant with AFNOR Z6CN18-10.

High Toughness at Cryogenic Temperatures

Like other austenitic grades, 304H also exhibits excellent toughness even at very low temperatures, from a reliable GOST 08Х18Н10 304H Supplier.

Global Acceptance

Standardized and used across all international industries for high-temperature service, ensuring wide compatibility, thanks to our global network as an AS 304H Exporter.

International Standards & Worldwide Equivalents of AISI 304H

As a global ASTM A276 AISI 304H Manufacturer and UNS S30409 Exporter, we ensure our products meet or exceed the requirements of various international standards, making them suitable for projects worldwide. This includes compliance as an EN 1.4948 Manufacturer and ASME SA276 304H Supplier.

Region / Standard Body Equivalent Grade Standard Code
United States (ASTM/ASME)AISI 304H / UNS S30409ASTM A276, ASTM A240, ASTM A182, ASME SA276, ASME SA240, ASME SA182
European Union (EN)1.4948EN 10088-3
Germany (DIN)X6CrNi18-10DIN 17440
United Kingdom (BS)304S31BS 970
France (AFNOR)Z6CN18-10NF A35-573 (Often used for 304, but higher C variants for 'H')
Japan (JIS)SUS 304HJIS G4303
China (GB)06Cr19Ni10 (For H equivalent)GB/T 1220
Russia (GOST)08Х18Н10Т (Stabilized, but 08Х18Н10 can be similar)GOST 5632
Italy (UNI)X6CrNi18-10UNI 6900
Australia (AS)304HAS 1449
International UNSS30409

Chemical Composition of AISI 304H Stainless Steel (Typical)

As an experienced AISI 304H Manufacturer, we guarantee the precise chemical composition of our AISI 304H Stainless Steel Bars (UNS S30409), adhering strictly to industry standards like ASTM A276 and EN 10088-3 for optimal high-temperature performance.

Carbon (C):
0.04 – 0.10%
Chromium (Cr):
18.0 – 20.0%
Nickel (Ni):
8.0 – 10.5%
Manganese (Mn):
≤ 2.0%
Silicon (Si):
≤ 1.0%
Phosphorus (P):
≤ 0.045%
Sulfur (S):
≤ 0.03%

*(Note: Iron balance and other elements as per ASTM A276 / ASME SA276 for UNS S30409. The higher carbon content is crucial for high-temperature strength.)*

Mechanical Properties of AISI 304H Stainless Steel

Our AISI 304H Bars and Rods (UNS S30409) exhibit excellent mechanical properties tailored for high-temperature service, making them reliable for demanding structural and engineering applications, meeting the benchmarks set by standards such as ASTM A276 and ASME SA276.

Tensile Strength:
≥ 515 MPa (75 ksi)
Yield Strength:
≥ 205 MPa (30 ksi)
Elongation:
≥ 40%
Hardness (Brinell):
≤ 201 HB
Density:
7.93 g/cm³

*(Note: Mechanical properties for high-temperature applications often involve creep and stress rupture data, which are enhanced in 304H due to its higher carbon content.)*

Available Shapes & Profiles for AISI 304H Bars & Rods

DIPTI Metal Industries, a leading AISI 304H Supplier and ASTM A276 304H Stockiest, offers AISI 304H Stainless Steel bars (UNS S30409, EN 1.4948) in a comprehensive range of shapes and finishes suitable for high-temperature industrial requirements.

Round Bars

  • Hot Rolled / Cold Drawn Finish (Bright finish may not be primary for high-temp)
  • Available in a wide range of sizes, including large diameters for structural components
  • Excellent for general machining and fabrication, from a top AISI 304H Round Bar Manufacturer.

Square Bars

  • Supplied with precision tolerances
  • Ideal for structural supports and high-temperature frameworks
  • Consistent dimensions for reliable fit, as a dedicated AISI 304H Square Bar Supplier.

Hex Bars

  • Commonly used for high-temperature fasteners, nuts, and specialized machining parts
  • Accurate hexagonal dimensions for secure grip
  • Available in various sizes, from an experienced AISI 304H Hex Bar Exporter.

Rods / Straight Lengths

  • Supplied in custom lengths as per project needs for furnace elements or supports
  • Controlled straightness for critical high-temperature applications
  • Available with hot-finished or black finishes, from your reliable AISI 304H Rods Supplier.

Manufacturing & Quality Control for ASTM A276 / AISI 304H Bars

DIPTI Metal Industries, as an established ASTM A276 304H Manufacturer and one of the leading AISI 304H Manufacturers in India, follows strict quality standards, ensuring every AISI 304H bar and rod (UNS S30409, EN 1.4948) meets global engineering requirements for high-temperature service and provides reliable performance. Our comprehensive quality assurance covers all aspects of ASTM A276, ASTM A240, ASTM A182, ASME SA276, ASME SA240, and ASME SA182.

Rigorous Testing & Inspection

  • 100% PMI Testing: Positive Material Identification to verify grade (e.g., UNS S30409).
  • Ultrasonic (UT) Inspection: For internal flaw detection, crucial for ASME SA276 304H compliance.
  • Dimensional Accuracy Checks: Ensuring precise measurements as per EN 10088-3 1.4948.
  • Visual Inspection: For surface finish and defects, upholding our reputation as a quality AISI 304H Supplier.
  • High-Temperature Testing: Additional tests like creep and stress rupture can be performed as per project requirements.

Certifications & Process Control

  • Heat Treatment Control: Solution Annealing for optimal properties and grain size for high-temperature strength, adhering to DIN 17440 304H requirements.
  • Complete Material Test Certificates (MTC): As per EN 10204 3.1, provided by our GB 06Cr19Ni10 304H Manufacturer.
  • Third-Party Inspection (TPI) available on request, for all our AISI 304H Exporter shipments.
  • Compliance with ASTM A276 304H, ASME SA276 304H, and other relevant international standards, affirming our position as a reliable S30409 Manufacturer.

Key Global Applications of AISI 304H Bars & Rods

The superior high-temperature strength and creep resistance of AISI 304H Stainless Steel bars (UNS S30409, EN 1.4948) make them indispensable across a wide range of industries globally, particularly in environments operating above 500°C. We are a trusted AISI 304H Exporter and ASTM A276 304H Supplier for these sectors, providing products that meet various international standards like JIS G4303 304H and BS 970 304H.

Power Generation & Boilers

  • Superheaters, reheaters, and boiler tube supports
  • Components in high-temperature steam systems, supplied by your X6CrNi18-10 Supplier.

Petrochemical & Refining

  • Furnace fittings, heat exchanger components operating at elevated temperatures
  • High-temperature piping systems and structural supports, from an experienced AS 304H Manufacturer.

Heat Treatment Equipment

  • Components for industrial furnaces, annealing boxes, and radiant tubes.
  • Fixtures and supports subjected to cyclic high temperatures.

Pressure Vessels & Tanks

  • Internal and external components of pressure vessels designed for high-temperature service
  • Structural elements in high-temperature storage, supplied by your trusted NF A35-573 304H Exporter.

Chemical Processing

  • Equipment handling hot corrosive gases or liquids
  • High-temperature reactors and catalysts supports, meeting ASME SA276 304H requirements from an AISI 304H Manufacturer.

Cement & Mining Industries

  • Kiln components, grate bars, and other parts exposed to high temperatures and abrasive environments.
  • Specialized structural elements, from a reliable UNI 6900 304H Supplier.

AISI 304H Global Export Markets: AISI 304H Supplier in India Supplying from Mumbai

Dipti Metal Industries is a proud AISI 304H Exporter, serving as a reliable AISI 304H Supplier in Mumbai and an AISI 304H Distributor to OEMs, EPC contractors, and end-users worldwide. We are highly proficient as an ASTM A276 304H Exporter and a top AISI 304H Manufacturers in India, ensuring our UNS S30409 and EN 1.4948 products reach destinations in compliance with all relevant international standards like ASTM A276, ASTM A240, ASTM A182, ASME SA276, ASME SA240, ASME SA182, EN 10088-3, DIN 17440, BS 970, NF A35-573, JIS G4303, GB/T 1220, GOST 5632, UNI 6900, and AS 1449.

  • USA: Houston, Los Angeles, New York, Chicago, New Orleans (Top ASTM A276 304H Supplier)
  • Canada: Calgary, Edmonton, Vancouver, Toronto, Montreal (Leading UNS S30409 Exporter)
  • Mexico: Mexico City, Monterrey, Guadalajara, Veracruz (Trusted AISI 304H Exporter)
  • Panama: Panama City, Colón
  • Trinidad and Tobago: Port of Spain, San Fernando
  • Costa Rica: San José, Puerto Limón
  • Guatemala: Guatemala City, Puerto Quetzal
  • Honduras: Tegucigalpa, San Pedro Sula
  • Nicaragua: Managua, Corinto
  • El Salvador: San Salvador, Acajutla
  • Jamaica: Kingston, Montego Bay
  • Dominican Republic: Santo Domingo, Santiago
  • Cuba: Havana, Santiago de Cuba
  • Bahamas: Nassau, Freeport
  • Barbados: Bridgetown
  • Haiti: Port-au-Prince
  • Puerto Rico: San Juan
  • Belize: Belize City
  • Brazil: São Paulo, Rio de Janeiro, Salvador, Curitiba (Reliable EN 1.4948 Exporter)
  • Argentina: Buenos Aires, Cordoba, Rosario (Key ASME SA276 304H Exporter)
  • Chile: Santiago, Valparaíso, Concepción, Antofagasta
  • Colombia: Bogotá, Medellín, Cartagena, Barranquilla
  • Peru: Lima, Callao, Arequipa, Trujillo
  • Venezuela: Caracas, Maracaibo, Puerto La Cruz, Valencia
  • Ecuador: Quito, Guayaquil, Manta, Esmeraldas
  • Bolivia: La Paz, Santa Cruz, Cochabamba
  • Uruguay: Montevideo, Salto
  • Paraguay: Asunción, Ciudad del Este
  • Guyana: Georgetown
  • Suriname: Paramaribo
  • Germany: Frankfurt, Hamburg, Munich, Düsseldorf, Berlin (Prominent DIN 17440 304H Exporter, EN 1.4948 Manufacturer)
  • United Kingdom: London, Manchester, Aberdeen, Glasgow, Liverpool (Leading BS 970 304H Exporter, 304S31 Manufacturer)
  • Netherlands: Rotterdam, Amsterdam, The Hague
  • France: Paris, Marseille, Lyon, Le Havre, Bordeaux (Expert NF A35-573 304H Exporter)
  • Italy: Milan, Rome, Genoa, Venice, Naples (Reliable UNI 6900 304H Exporter)
  • Spain: Madrid, Barcelona, Valencia, Bilbao, Seville
  • Russia: Moscow, Saint Petersburg, Kazan, Novorossiysk, Sochi (Global GOST 5632 304H Exporter)
  • Poland: Warsaw, Krakow, Gdańsk, Wrocław
  • Belgium: Antwerp, Brussels, Ghent, Zeebrugge
  • Sweden: Stockholm, Gothenburg, Malmö, Uppsala
  • Norway: Oslo, Bergen, Stavanger, Trondheim
  • Finland: Helsinki, Tampere, Turku, Oulu
  • Turkey: Istanbul, Ankara, Izmir, Adana
  • Portugal: Lisbon, Porto, Sines
  • Greece: Athens, Thessaloniki, Patras
  • Ireland: Dublin, Cork
  • Austria: Vienna, Salzburg, Linz
  • Switzerland: Zurich, Geneva, Basel, Bern
  • Czech Republic: Prague, Brno, Ostrava
  • Romania: Bucharest, Cluj-Napoca, Constanța
  • Ukraine: Kyiv, Kharkiv, Odesa, Lviv
  • Hungary: Budapest, Debrecen, Szeged
  • Croatia: Zagreb, Split, Rijeka
  • Denmark: Copenhagen, Aarhus, Odense
  • Slovakia: Bratislava, Košice, Žilina
  • Lithuania: Vilnius, Kaunas, Klaipėda
  • Latvia: Riga, Daugavpils, Liepāja
  • Estonia: Tallinn, Tartu, Narva
  • Bulgaria: Sofia, Plovdiv, Varna
  • Serbia: Belgrade, Novi Sad
  • Slovenia: Ljubljana, Maribor
  • Cyprus: Nicosia, Limassol
  • Malta: Valletta, Birkirkara
  • Saudi Arabia: Riyadh, Jeddah, Dammam, Al Khobar, Jubail (Trusted ASTM A182 304H Exporter)
  • UAE: Dubai, Abu Dhabi, Sharjah, Ajman, Ras Al Khaimah (Reliable AISI 304H Supplier)
  • Qatar: Doha, Ras Laffan (Leading S30409 Exporter)
  • Oman: Muscat, Sohar, Salalah
  • Kuwait: Kuwait City, Ahmadi
  • Bahrain: Manama, Sitra
  • Iraq: Baghdad, Basra, Erbil
  • Iran: Tehran, Mashhad, Bandar Abbas, Isfahan
  • India: Mumbai, Delhi, Chennai, Kolkata, Bangalore, Hyderabad (Top AISI 304H Manufacturers in India)
  • China: Shanghai, Guangzhou, Tianjin, Shenzhen, Qingdao, Hong Kong (Expert GB 06Cr19Ni10 304H Manufacturer)
  • Japan: Tokyo, Osaka, Nagoya, Yokohama, Kobe (Dedicated JIS SUS304H Supplier)
  • South Korea: Seoul, Busan, Ulsan, Incheon, Daegu
  • Indonesia: Jakarta, Surabaya, Balikpapan, Medan
  • Singapore: Singapore City
  • Malaysia: Kuala Lumpur, Johor Bahru, Port Klang, Penang
  • Thailand: Bangkok, Rayong, Laem Chabang, Chiang Mai
  • Vietnam: Ho Chi Minh City, Hanoi, Da Nang, Haiphong
  • Philippines: Manila, Cebu, Davao, Batangas
  • Bangladesh: Dhaka, Chittagong, Khulna
  • Pakistan: Karachi, Lahore, Islamabad, Faisalabad
  • Taiwan: Taipei, Kaohsiung, Taichung
  • Myanmar: Yangon, Mandalay
  • Sri Lanka: Colombo, Kandy
  • Kazakhstan: Nur-Sultan, Almaty, Atyrau
  • Uzbekistan: Tashkent, Samarkand, Bukhara
  • Jordan: Amman, Irbid, Zarqa
  • Lebanon: Beirut, Tripoli
  • Mongolia: Ulaanbaatar, Erdenet
  • Nepal: Kathmandu, Biratnagar
  • Yemen: Sana'a, Aden
  • South Africa: Johannesburg, Durban, Cape Town, Sasolburg (Key AS 304H Exporter)
  • Nigeria: Lagos, Port Harcourt, Abuja, Kano (Reliable AISI 304H Exporter)
  • 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
  • Tunisia: Tunis, Sfax
  • Ethiopia: Addis Ababa, Dire Dawa
  • Australia: Sydney, Melbourne, Perth, Brisbane, Darwin, Adelaide (Trusted AS 1449 304H Manufacturer)
  • New Zealand: Auckland, Wellington, Christchurch
  • Papua New Guinea: Port Moresby, Lae
  • Fiji: Suva, Nadi
  • Zambia: Lusaka, Ndola
  • Zimbabwe: Harare, Bulawayo
  • Namibia: Windhoek, Walvis Bay
  • Democratic Republic of Congo: Kinshasa, Lubumbashi
  • Cote d'Ivoire: Abidjan
  • Senegal: Dakar
  • Mali: Bamako
  • Malawi: Lilongwe, Blantyre
  • Mauritius: Port Louis
  • Reunion: Saint-Denis

Get a Quote Today for Your Stainless Steel AISI 304H Bar Requirements!

Are you searching for the most competitive AISI 304H Exporter price or need guaranteed ASTM A276 304H certification (including ASME SA276 304H, ASTM A240 304H, ASTM A182 304H, EN 10088-3 1.4948)? Contact Dipti Metal Industries, your expert ASTM A276 AISI 304H Manufacturer and AISI 304H Wholesaler in Mumbai, India, today. We provide full documentation and the best DIPTI® AISI 304H Supplier solutions, also serving as an UNS S30409 Stockiest.

Important: When requesting a quote, please specify the required AISI 304H Shape (e.g., Round, Square, Hex), dimensions (OD/side, length), finish (Hot Rolled / Cold Drawn), and quantity to our AISI 304H Manufacturers in India.

Stainless Steel ASTM A276 / AISI 304H Bars — Frequently Asked Questions

Find answers to common questions about AISI 304H Manufacturer production, grades (UNS S30409, EN 1.4948), standards (ASTM A276, ASME SA276), and applications.

AISI 304H (UNS S30409 / EN 1.4948) Stainless Steel is a high-carbon version of 304, specifically engineered for excellent strength and creep resistance at elevated temperatures (above 500°C / 932°F). It retains good corrosion resistance and is suitable for high-temperature pressure-containing applications. As an AISI 304H Manufacturer, we ensure these properties in every bar we supply, adhering to standards like DIN 17440 304H and JIS SUS304H.

DIPTI Metal Industries, an established ASTM A276 304H Supplier and UNS S30409 Stockiest, supplies AISI 304H bars in various profiles including Round Bars, Square Bars, and Hexagonal Bars, as well as Rods. Finishes typically include Hot Finished and Cold Drawn, catering to different precision and surface quality requirements for high-temperature components. We are a prominent 304H Round Bar Supplier and 304H Hex Bar Exporter, also offering ASME SA276 304H compliant products.

AISI 304H (UNS S30409) is widely recognized globally. Key equivalents include EN 1.4948 (Europe), X6CrNi18-10 (Germany), and 304S31 (UK). It adheres to specifications like ASTM A276, ASTM A240, ASTM A182 and ASME SA276, ASME SA240, ASME SA182, EN 10088-3, DIN 17440, BS 970, NF A35-573, JIS G4303, GB/T 1220, GOST 5632, UNI 6900, and AS 1449, ensuring global compliance from an EN 1.4948 Manufacturer and ASTM A276 304H Exporter.

AISI 304H is specifically designed for service temperatures exceeding 500°C (932°F) due to its higher carbon content (0.04-0.10%). This controlled carbon range provides improved high-temperature strength and excellent creep resistance compared to 304 and 304L, which are not recommended for prolonged use in this temperature range. This makes 304H ideal for components in furnaces, pressure vessels, and heat exchangers where high-temperature performance is critical. Our AISI 304H Manufacturers in India specialize in producing material suitable for such demanding environments, making us a trusted S30409 Supplier.

Contact Dipti Metal Industries, Your AISI 304H Supplier & 304H Round Bar Manufacturer

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 • Line-wise bagging & tagging • Full documentation & TPI. We are a worldwide AISI 304H Exporter, a key AISI 304H Stockiest, and leading AISI 304H Manufacturers in India in Mumbai, providing products compliant with ASTM A276 304H, ASME SA276 304H, UNS S30409, and EN 1.4948 standards.

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