DIPTI METAL INDUSTRIES
Leading AMS 5643 Stockist, AMS 5643 Supplier & AMS 5643 Exporter of 17-4 PH Stainless Steel Bar in Mumbai, India
Dipti Metal Industries (A KMR Group Company) is the globally recognized AMS 5643 Supplier, AMS 5643 Exporter, and the foremost AMS 5643 Stockist of 17-4 PH Stainless Steel Bar, Wire, and Forging Billets in Mumbai, India. AMS 5643 outlines the rigorous aerospace material requirements for 17-4 PH long products—a martensitic, precipitation-hardening stainless steel alloyed with copper and columbium. It offers fabricators the corrosion resistance of Type 304, combined with a remarkable capability to achieve high mechanical strengths (up to 190,000 psi UTS). Delivered in the readily machinable Solution Annealed state (Condition A), its true strength is unlocked via a low-temperature aging process (Condition H900 to H1150) that produces virtually zero dimensional distortion. We are a premier AMS 5643 Distributor supplying certified Round Bars, Hex Bars, and Machined Forgings to the aerospace, defense, and offshore sectors worldwide.
Explore Other Aerospace Stainless Steel Bar Grades
AMS 5612 (410) AMS 5613 (410) AMS 5639 (304) AMS 5643 (17-4 PH) AMS 5645 (321) AMS 5647 (304L) AMS 5653 (316L) AMS 5659 (15-5 PH)🏭 Strategic Industrial Specialization & Market Leadership
As a leading AMS 5643 Supplier in Mumbai, Dipti Metal Industries maintains a deeply integrated, highly specialized supply chain that makes us the primary AMS 5643 source for high-stress aerospace and defense bar-stock machining. We source our 17-4 PH Stainless Steel exclusively from Certified Tier-1 Mills, ensuring an immaculate microstructural balance required for uniform precipitation hardening without post-machining distortion.
The KMR Guarantee & Certifications
- Original EN 10204 3.1 Mill Test Certificates (MTC)
- 100% Traceability and Aerospace Compliance
- Strict Age-Hardening Response Testing Validations
- Third-Party Approvals: Bureau Veritas (BV), DNV, TÜV, and Lloyd's Register
Why Partner With Dipti?
- Largest worldwide AMS 5643 17-4 PH Bar & Billet inventory in the Asian subcontinent
- Supplied in Condition A (Solution Annealed) for optimized CNC turning/milling
- Seamless logistics to high-tech hubs: Seattle, Toulouse, Jebel Ali, Singapore
- Export packing in ISPM-15 compliant, VCI vacuum-sealed wooden crates
📘 Technical Specifications: The AMS 5643 Engineering Profile
AMS 5643 is the exacting aerospace specification governing 17-4 PH (UNS S17400) long products. The alloy develops its intense mechanical strength via precipitation hardening—a thermal process where copper-rich phases precipitate into the martensitic matrix. By selecting the appropriate aging temperature (from 900°F for maximum strength up to 1150°F for maximum toughness), engineers can precisely dial in the mechanical properties required for specific stress loads.
Metallurgical Composition Limits
| Element | Target (%) | Effect |
|---|---|---|
| Chromium (Cr) | 15.00 - 17.50 | Provides foundational oxidation and corrosion resistance |
| Nickel (Ni) | 3.00 - 5.00 | Promotes toughness and stabilizes the martensitic matrix |
| Copper (Cu) | 3.00 - 5.00 | Primary element for precipitation age-hardening |
| Columbium (Nb) + Ta | 0.15 - 0.45 | Refines grain structure, supports precipitation |
| Carbon (C) | 0.07 max | Kept low to ensure toughness and maintain weldability |
| Manganese (Mn) | 1.00 max | Improves hot workability |
| Silicon (Si) | 1.00 max | Enhances scaling resistance |
Phosphorus and Sulfur are tightly restricted to 0.040% max and 0.030% max, respectively, ensuring exceptional fatigue life and avoiding weld cracking.
Mechanical Properties (Condition A & H900)
| Property | Condition A (Supplied) | Cond. H900 (Peak Aged) |
|---|---|---|
| Ultimate Tensile Strength | ~1034 MPa (150 ksi) | ≥ 1310 MPa (190 ksi) |
| Yield Strength (0.2%) | ~758 MPa (110 ksi) | ≥ 1170 MPa (170 ksi) |
| Elongation in 2" (50mm) | ≥ 5.0 - 10.0% | ≥ 10.0% |
| Reduction of Area | ≥ 35.0% | ≥ 35.0% |
| Hardness (HRC) | ~32 - 38 HRC max | ≥ 40 - 47 HRC |
Our AMS 5643 bars are typically supplied in Condition A (Solution Annealed at 1900°F). This condition is ideal for machining complex shapes prior to the final low-temperature (900°F - 1150°F) aging process, which avoids the scaling and distortion seen in traditional quench-and-temper steels.
AMS 5643 Cross-Reference & Global Equivalents
17-4 PH Stainless Steel is specified globally for its unique combination of strength and corrosion resistance. AMS 5643 represents the premium aerospace standard dedicated to bar stock and forgings (its flat-rolled counterpart is AMS 5604).
| Standard | Designation / Grade | Sector Focus |
|---|---|---|
| AMS (Aerospace) | AMS 5643 (Bar, Wire, Forging) | Aerospace Machined Fittings & Shafts |
| AMS (Aerospace) | AMS 5604 (Sheet, Strip, Plate) | Aerospace Structurals & Bulkheads |
| UNS (Unified Numbering System) | S17400 | Global Engineering Data |
| ASTM / ASME | ASTM A564 Type 630 | General Industrial & Petrochemical |
| MIL-SPEC | MIL-S-81506 | Naval & Defense Systems |
| British Standard | BS S143 / BS S144 | European Aerospace Structurals |
| European (EN) | 1.4542 / X5CrNiCuNb16-4 | EU Manufacturing & Processing |
AMS 5643 Manufacturing, Processing & Stockholding Depth
As the primary AMS 5643 Stockist in Mumbai, we maintain an immense inventory of 17-4 PH bar products. Our advanced processing division custom-sizes material to strict tolerances, ready for your CNC lines.
- AMS 5643 Cold Finished Round Bars (0.125" to 4.00")
- AMS 5643 Hot Rolled & Peeled Bars (up to 14.00")
- AMS 5643 Precision Hex & Square Bars
- AMS 5643 Forging Billets & Rolled Rings
- Heavy Band Saw Cutting: Precision cut-to-length billets with tight tolerances
- Centerless Grinding & Peeling: Producing defect-free, mirror-finish round bars
- Trepanning: Creating hollow 17-4 PH shafts for specialized fluid and structural applications
- Lathe Turning: Rough machining heavy forgings prior to final shipment
- Supplied strictly in Condition A (Solution Annealed)
- Batch-tested for specific age-hardening response (Sample H900 tests)
- 100% Volumetric Ultrasonic Tested to MIL-STD-2154 / AMS-STD-2154
Dedicated Sector Focus: Mission-Critical Applications
Dipti Metal Industries supplies AMS 5643 for applications where standard austenitic grades (like 304/316) lack sufficient yield strength, and where martensitic grades (like 410) lack sufficient corrosion resistance.
- Aerospace Hardware: High-stress structural fasteners, engine pylon mounts, landing gear trunnions, and actuator shafts.
- Offshore & Oil/Gas: Subsea control valves, heavy-duty pump shafts, gate valves, and drill rig tensioning hardware.
- Defense & Naval Engineering: Missile airframes, torpedo launch tubes, high-impact naval defense hardware, and munitions mechanisms.
- Chemical & Petrochemical: High-pressure chemical reactor vessels, specialized impellers, and fluid handling pump internals.
- Nuclear Power: Control rod drive mechanisms, high-strength specialized bolting, and primary coolant pump components.
Global Distribution Network for AMS 5643 (75+ Countries)
As a Worldwide AMS 5643 Exporter, Dipti Metal utilizes the KMR Group’s expansive logistics network. We offer CIF, FOB, and EXW terms with seamless delivery to international aerospace, defense, and offshore manufacturing hubs.
Major Markets Served by Our AMS 5643 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 5643 Specialist Today
When you partner with Dipti Metal Industries, you are collaborating with a technical authority in Aerospace Grade 17-4 PH Stainless Steel. For bulk bar sourcing, precision billet cutting, or trepanning requirements for high-stress applications, 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.