DIPTI METAL INDUSTRIES
Leading AMS 5618 Stockist, AMS 5618 Supplier & AMS 5618 Exporter of 440C Stainless Bar in Mumbai, India
Dipti Metal Industries (A KMR Group Company) is the global technical authority and premier AMS 5618 Supplier, AMS 5618 Exporter, and AMS 5618 Stockist of 440C VIM-VAR Stainless Steel bars. AMS 5618 specifies high-carbon martensitic stainless steel (UNS S44004) produced via Vacuum Induction Melting (VIM) and Vacuum Arc Remelting (VAR). This double-melt process ensures the exceptional metallurgical cleanliness required for high-performance aerospace bearings, valve seats, and surgical tools. Headquartered in Mumbai, India, we supply certified AMS 5618 round bars designed to achieve maximum Rockwell hardness and superior wear resistance in mission-critical environments.
Explore Other Aerospace Martensitic & PH Grades
AMS 5630 (440C) AMS 5618 (440C VIM-VAR) AMS 5629 (13-8 Mo) AMS 5643 (17-4 PH) AMS 5659 (15-5 PH)🏭 Strategic Industrial Excellence in Martensitic Alloys
As a specialized AMS 5618 Supplier, Dipti Metal Industries bridges the gap between raw material and aerospace reliability. AMS 5618 is the "Premium Grade" of 440C, where the VIM-VAR process eliminates the non-metallic inclusions that lead to fatigue failure in high-speed bearings.
The KMR Aerospace Standard
- Supplied in Solution Annealed condition for optimal machinability
- Original Mill Test Certificates (EN 10204 3.1) with full VIM-VAR data
- Ultrasonic testing per AMS 2154 Class AA
- Strict control over carbide distribution for uniform hardness
Why Choose Dipti for AMS 5618?
- Foremost AMS 5618 Stockist in the Indian subcontinent
- Global distribution to aerospace hubs (Seattle, Toulouse, Singapore)
- Precision centerless grinding for high-speed CNC applications
- Specialized export vacuum packing to prevent oxidation
📘 Technical Profile: AMS 5618 (440C VIM-VAR)
AMS 5618 (UNS S44004) is the premium vacuum-melted version of Type 440C. It is designed to provide maximum hardness (Rockwell C 58-60) while maintaining moderate corrosion resistance. Its high chromium and carbon content make it the hardest of all stainless steels.
Chemical Composition (%)
| Element | Min | Max |
|---|---|---|
| Carbon (C) | 0.95 | 1.20 |
| Chromium (Cr) | 16.00 | 18.00 |
| Molybdenum (Mo) | 0.40 | 0.65 |
| Manganese (Mn) | - | 1.00 |
| Silicon (Si) | - | 1.00 |
| Phosphorus (P) | - | 0.04 |
| Sulfur (S) | - | 0.03 |
Typical Mechanical Properties (Post-Hardening)
| Property | Aged/Hardened Value |
|---|---|
| Hardness (Rockwell C) | 58 - 60 HRC |
| Tensile Strength (UTS) | 285,000 psi (1965 MPa) |
| Yield Strength | 275,000 psi (1896 MPa) |
| Elastic Modulus | 29 x 10⁶ psi |
| Density | 7.75 g/cm³ |
Bars are typically stocked in Annealed Condition with a max hardness of 255 HB for easier processing.
AMS 5618 Product Shapes & Precision Processing
- AMS 5618 Round Bars (Centerless Ground or Bright)
- AMS 5618 Precision Wire Coils
- Forged Rings for large bearing races
- Step-Shafts and Forged Blocks
- Hex & Flat bars (Special Order)
- Centerless Grinding: Tolerances up to +/- 0.0005"
- Production Sawing: Burr-free cut-to-length blanks
- Heat Treatment Support: Sub-zero treatments for austenite transformation
- Testing: Magnetic Particle Inspection (MPI) and Eddy Current
Mission-Critical Applications of AMS 5618
- Aerospace Bearings: Rolling elements and races for jet engine and airframe controls.
- Valve Components: Valve seats and needles for high-pressure fluid systems.
- Medical Instruments: Specialized surgical blades and dental tools requiring extreme sharpness.
- Precision Tools: High-end industrial nozzles, pump parts, and wear plates.
- Defense: Critical pivot pins and high-hardness structural hardware.
Global Distribution Network for AMS 5618 (75+ Countries)
As a leading AMS 5618 Exporter, Dipti Metal Industries serves every major aerospace and defense hub worldwide.
- 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, Bristol
- Bahrain: Manama, Sitra
- China: Shanghai, Guangzhou, Tianjin, Shenzhen
- India: Mumbai (Export Hub), Delhi, Chennai, Bangalore, Hyderabad
- Indonesia: Jakarta, Surabaya, Balikpapan
- Japan: Tokyo, Osaka, Nagoya (Aerospace Hub)
- 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 (Logistics Hub)
- 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, Queretaro
- USA: Houston, Los Angeles, New York, Chicago, Seattle, Wichita, Savannah
- Argentina: Buenos Aires, Cordoba
- Brazil: São Paulo, Rio de Janeiro, Sao Jose dos Campos
- 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
Inquire for AMS 5618 (440C VIM-VAR)
Dipti Metal Industries is your engineering partner for high-wear aerospace stainless steel. Request a quote for bars, precision wire, or custom forgings below.
📍 Contact Dipti Metal Industries
Dipti Metal Industries (KMR Group)
No.9, Shreepati Castle, D-1, 10–11th Khetwadi Back Road, Mumbai – 400004, India
Sales: +91-22-66381301
WhatsApp: +91-9975266499
Email: info@diptimetal.com