DIPTI METAL INDUSTRIES
Leading AMS 6370 Stockist, AMS 6370 Supplier & AMS 6370 Exporter of 4130 Chromoly Steel Bar in Mumbai, India
Dipti Metal Industries (A KMR Group Company) is the globally recognized AMS 6370 Supplier, AMS 6370 Exporter, and the foremost AMS 6370 Stockist of 4130 Alloy Steel in Mumbai, India. AMS 6370 is the definitive aerospace specification for 4130 steel, universally known as "Chromoly." Featuring a lower carbon content than 4340, this chromium-molybdenum alloy offers phenomenal weldability, excellent formability, and an incredible strength-to-weight ratio. It is the absolute industry standard for highly stressed, welded structures including aircraft engine mounts, light aircraft fuselages, and high-performance motorsport roll cages. We are a premier AMS 6370 Distributor supplying certified Bars, Billets, and Custom Forgings to mission-critical engineering sectors worldwide.
Explore Other Aerospace Steel Grades
AMS 6370 (4130 Alloy) AMS 6260 (SAE 9310) AMS 6304 (17-22A(S)) AMS 6414 (4340 VIM/VAR) AMS 6415 (4340 Alloy) AMS 6417 (300M) AMS 6419 (300M) AMS 6514 (Maraging 300)🏭 Strategic Industrial Specialization & Market Leadership
As a leading AMS 6370 Supplier in Mumbai, Dipti Metal Industries maintains a highly specialized supply chain that positions us as the primary source for structural aircraft-quality steel projects. We source our AMS 6370 (4130) exclusively from Certified Tier-1 Mills operating modern Electric Arc Furnaces (EAF) coupled with Vacuum Arc Degassing (VAD) to ensure clean, strictly controlled macrostructure and predictable hardenability.
The KMR Guarantee & Certifications
- Original EN 10204 3.1 Mill Test Certificates (MTC)
- Aircraft Quality Cleanliness Standards (AMS 2301)
- 100% Ultrasonic Testing (UT) per AMS 2631
- Third-Party Approvals: Bureau Veritas (BV), DNV, TÜV, and Lloyd's Register
Why Partner With Dipti?
- Largest worldwide AMS 6370 4130 Bar & Billet inventory in the Asian subcontinent
- Supplied Normalized or Annealed for optimal machining and welding
- Seamless logistics to global hubs: Dubai, Singapore, Houston, Frankfurt
- Export packing in ISPM-15 compliant, VCI vacuum-sealed wooden crates
📘 Technical Specifications: The AMS 6370 Engineering Profile
AMS 6370 strictly governs the aerospace requirements for aircraft-quality 4130 alloy steel (UNS G41300). The specific combination of Chromium and Molybdenum delivers excellent hardenability and wear resistance. Because of its nominal 0.30% carbon content, it exhibits outstanding weldability using standard TIG or MIG processes (often welded with ER80S-D2 or 4130 filler rod). It can be easily heat-treated to a variety of strength levels, providing structural engineers the perfect balance of yield strength, elongation, and impact resistance.
Metallurgical Composition & Purity Limits
| Element | Target (%) | Effect |
|---|---|---|
| Carbon (C) | 0.28 - 0.33 | Maintains weldability while allowing hardening |
| Chromium (Cr) | 0.80 - 1.10 | Increases hardenability and wear resistance |
| Molybdenum (Mo) | 0.15 - 0.25 | Maintains strength and improves hardenability |
| Manganese (Mn) | 0.40 - 0.60 | Deoxidizer, contributes to strength |
| Silicon (Si) | 0.15 - 0.35 | General deoxidizer |
Sulfur and Phosphorus are limited to max 0.025% (Aircraft Quality limits) to prevent brittleness and cracking during welding operations.
Typical Mechanical Properties (Normalized)
| Property | Value | Unit |
|---|---|---|
| Ultimate Tensile Strength (UTS) | 620 - 760 (90,000 - 110,000) | MPa (psi) |
| Yield Strength (0.2% Offset) | ≥ 485 (70,000) | MPa (psi) |
| Elongation in 2 inches | ≥ 15.0 | % |
| Reduction of Area | ≥ 45.0 | % |
| Hardness (Typical) | 190 - 240 | Brinell (HB) |
While typically supplied and machined in the Normalized condition (approx 90-110 ksi UTS), 4130 can be quenched and tempered to reach ultimate tensile strengths up to 150,000 psi.
AMS 6370 Cross-Reference & Global Equivalents
4130 Alloy Steel is utilized universally. While AMS 6370 sets the aerospace standard for bar and forging stock, various other specifications apply depending on the product form and the exact sector.
| Standard | Designation / Grade | Sector Focus |
|---|---|---|
| AMS (Aerospace) | AMS 6370 (Bar & Forging) | Commercial Aerospace & Structurals |
| AMS (Aerospace Tubing) | AMS-T-6736 / MIL-T-6736 | Aerospace Tubular Frames |
| UNS (Unified Numbering System) | G41300 | Global Engineering Data |
| AISI / SAE | 4130 Alloy Steel (Chromoly) | Industrial / Motorsport |
| MIL-SPEC | MIL-S-6758 | Military Hardware |
| ASTM | ASTM A322 / ASTM A304 | Heavy Machinery & Structural Steel |
AMS 6370 Manufacturing, Processing & Stockholding Depth
As the premier AMS 6370 Stockist in Mumbai, we house extensive ranges of aircraft-quality 4130 raw material. Our processing division custom-sizes billets and bars for rapid global deployment.
- AMS 6370 Normalized Round Bars
- AMS 6370 Precision Hex & Square Bars
- AMS 6370 Heavy Forging Billets
- AMS 6370 Custom Open-Die Forged Blocks
- Heavy Band Saw Cutting: Precision cut-to-length billets
- Centerless Grinding & Peeling: Removing mill scale for defect-free surfaces
- Turning & Trepanning: Preparation for deep-hole drilling of hollow shafts
- Delivered Normalized for excellent machining and welding
- Aircraft Quality Macrostructure limits strictly adhered to
- 100% Volumetric Ultrasonic Tested
Dedicated Sector Focus: Mission-Critical Applications
Dipti Metal Industries has built its reputation supplying AMS 6370 for applications demanding high structural integrity, excellent weldability, and resistance to impact.
- Aerospace Structures: Welded tubular frames, aircraft engine mounts, landing gear components, and light aircraft fuselage structures.
- Motorsport Engineering: High-performance drag racing and rally roll cages, suspension wishbones, steering linkages, and tubular chassis.
- Oil & Gas Exploration: Drilling equipment, structural fittings, valve bodies, and components requiring good field weldability.
- Heavy Engineering & Machinery: High-stress gears, pins, structural joints, and power transmission shafts.
- Defense & Ordnance: Firearms components, military vehicle frames, and lightweight protective hardware.
Global Distribution Network for AMS 6370 (75+ Countries)
As a Worldwide AMS 6370 Exporter, Dipti Metal utilizes the KMR Group’s expansive logistics network. We offer CIF, FOB, and EXW terms with seamless delivery to international aerospace, motorsport, and heavy engineering manufacturing hubs.
Major Markets Served by Our AMS 6370 Export Hub
- Austria: Vienna, Salzburg
- Belgium: Antwerp, Brussels, Ghent
- Bulgaria: Sofia, Plovdiv
- Croatia: Zagreb, Split
- Czech Republic: Prague, Brno
- Denmark: Copenhagen, Aarhus
- Estonia: Tallinn, Tartu
- Finland: Helsinki, Tampere
- France: Paris (Aerospace Hub), Toulouse, Lyon
- Germany: Frankfurt, Hamburg, Munich, Düsseldorf
- Greece: Athens, Thessaloniki
- Hungary: Budapest, Debrecen
- Ireland: Dublin, Cork
- Italy: Milan, Rome, Genoa
- Latvia: Riga, Daugavpils
- Lithuania: Vilnius, Kaunas
- Luxembourg: Luxembourg City
- Netherlands: Rotterdam, Amsterdam, The Hague
- Norway: Oslo, Bergen
- Poland: Warsaw, Krakow
- Portugal: Lisbon, Porto
- Romania: Bucharest, Cluj-Napoca
- Russia: Moscow, Saint Petersburg, Kazan
- Serbia: Belgrade, Novi Sad
- Slovakia: Bratislava, Košice
- Slovenia: Ljubljana, Maribor
- Spain: Madrid, Barcelona, Valencia
- Sweden: Stockholm, Gothenburg
- Switzerland: Zurich, Geneva, Basel
- Ukraine: Kyiv, Kharkiv, Odesa
- United Kingdom: London, Manchester, Aberdeen, Biggleswade
- Bahrain: Manama, Sitra
- China: Shanghai, Guangzhou, Tianjin, Shenzhen
- India: Mumbai (Headquarters & Export Hub), Delhi, Chennai, Bangalore
- Indonesia: Jakarta, Surabaya, Balikpapan
- Japan: Tokyo, Osaka, Nagoya
- Kuwait: Kuwait City, Ahmadi
- Malaysia: Kuala Lumpur, Johor Bahru, Port Klang
- Oman: Muscat, Sohar, Salalah
- Qatar: Doha, Ras Laffan
- Saudi Arabia: Riyadh, Jeddah, Dammam, Al Khobar, Jubail
- Singapore: Singapore City
- South Korea: Seoul, Busan, Ulsan
- Taiwan: Taipei, Kaohsiung
- Thailand: Bangkok, Rayong, Laem Chabang
- UAE: Dubai (Jebel Ali), Abu Dhabi, Sharjah, Ajman
- Vietnam: Ho Chi Minh City, Hanoi, Da Nang
- Canada: Calgary, Edmonton, Vancouver, Toronto, Montreal
- Mexico: Mexico City, Monterrey, Guadalajara
- USA: Houston, Los Angeles, New York, Chicago, Seattle (Aerospace Hub)
- Argentina: Buenos Aires, Cordoba
- Brazil: São Paulo, Rio de Janeiro, Salvador
- Chile: Santiago, Valparaíso
- Colombia: Bogota, Medellin
- Peru: Lima, Arequipa
- Algeria: Algiers, Oran
- Egypt: Cairo, Alexandria, Port Said
- Morocco: Casablanca, Rabat
- Nigeria: Lagos, Port Harcourt, Abuja
- South Africa: Johannesburg, Durban, Cape Town
- Australia: Sydney, Melbourne, Perth, Brisbane
- New Zealand: Auckland, Wellington, Christchurch
Contact the World’s Leading AMS 6370 Specialist Today
When you partner with Dipti Metal Industries, you are collaborating with a technical authority in High-Strength Chromoly Steels. For bulk sourcing, billet cutting, or precision bar requirements for aerospace structurals or motorsport frames, request a quote below.
📍 Contact Dipti Metal Industries
Company
Dipti Metal Industries (A KMR Group Company)
Headquarters & Export Hub
No.9, Shreepati Castle, D-1, 10–11th Khetwadi Back Road, Mumbai – 400004, Maharashtra, India
Phone +91-22-66381301 • +91-9975266499 (WhatsApp)
Email
info@diptimetal.com
•
diptimetal@gmail.com
Specialized ISPM-15 export packing • VCI Vacuum Sealing • Original EN 10204 3.1 MTC Traceability.