DIPTI METAL INDUSTRIES
Dipti Metal Industries (A KMR Group Company) is the globally recognized AMS 6345 Supplier, AMS 6345 Exporter, and the foremost AMS 6345 Stockist of 4130 Alloy Steel in Mumbai, India. AMS 6345 is the definitive aerospace specification for flat-rolled 4130 steel, universally known as "Chromoly," specifically in the form of Sheet, Strip, and Plate. Featuring a lower carbon content than 4340, this chromium-molybdenum alloy offers phenomenal weldability, excellent cold formability, and an incredible strength-to-weight ratio. Supplied in the Normalized condition, it is the absolute industry standard for highly stressed, welded structures including aircraft engine mounts, gussets, and high-performance motorsport chassis plates. We are a premier AMS 6345 Distributor supplying certified Sheets, Strips, and Plates to mission-critical engineering sectors worldwide.
Explore Other Aerospace Steel Grades
AMS 6370 (4130 Bar) AMS 6345 (4130 Sheet) AMS 6260 (SAE 9310) AMS 6304 (17-22A(S)) AMS 6414 (4340 VIM/VAR) AMS 6415 (4340 Alloy) AMS 6419 (300M) AMS 6514 (Maraging 300)As a leading AMS 6345 Supplier in Mumbai, Dipti Metal Industries maintains a highly specialized supply chain that positions us as the primary source for structural aircraft-quality sheet and plate projects. We source our AMS 6345 (4130 AQ) exclusively from Certified Tier-1 Mills operating modern Electric Arc Furnaces (EAF) coupled with Vacuum Arc Degassing (VAD) to ensure clean, strictly controlled macrostructure suitable for precision fabrication.
AMS 6345 dictates the rigorous aerospace requirements for flat-rolled 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). When supplied as a Normalized sheet, it provides structural engineers the perfect balance of yield strength, elongation, and impact resistance without the immediate need for complex post-machining heat treatments.
| 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 strictly limited to max 0.025% (Aircraft Quality limits) to prevent brittleness and cracking during precision sheet metal welding operations.
| Property | Thickness Range | Value |
|---|---|---|
| Tensile Strength (UTS) | Under 0.187" | ~ 95,000 psi (655 MPa) |
| Tensile Strength (UTS) | 0.187" to 1.500" | ~ 90,000 psi (620 MPa) |
| Yield Strength (0.2%) | Under 0.187" | ~ 75,000 psi (517 MPa) |
| Yield Strength (0.2%) | 0.187" to 1.500" | ~ 70,000 psi (482 MPa) |
| Elongation in 2 inches | Typical | 10.0% - 16.0% |
While supplied in the Normalized condition for excellent formability, AMS 6345 can be quenched and tempered by the end-user to reach ultimate tensile strengths up to 150,000 psi if required for structural brackets.
4130 Alloy Steel is utilized universally. While AMS 6345 sets the aerospace standard for Normalized Sheet and Plate, various other specifications apply depending on the product form and heat-treated condition.
| Standard | Designation / Grade | Sector Focus |
|---|---|---|
| AMS (Aerospace) | AMS 6345 (Normalized Sheet/Plate) | Aircraft Structurals & Gussets |
| AMS (Alternative) | AMS 6350 (Annealed Sheet/Plate) | Maximum Formability / Deep Drawing |
| UNS (Unified Numbering System) | G41300 | Global Engineering Data |
| MIL-SPEC | MIL-S-18729 | Military Hardware & Airframes |
| AMS (Bar Stock) | AMS 6370 | Aerospace Machined Forgings & Bars |
| ASTM | ASTM A505 / A506 | Industrial & Heavy Machinery Sheet |
As the premier AMS 6345 Stockist in Mumbai, we house extensive ranges of aircraft-quality 4130 flat-rolled material. Our processing division custom-profiles sheets and plates for rapid global deployment.
Dipti Metal Industries has built its reputation supplying AMS 6345 for flat-rolled applications demanding high structural integrity, excellent weldability, and resistance to impact.
As a Worldwide AMS 6345 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.
When you partner with Dipti Metal Industries, you are collaborating with a technical authority in High-Strength Chromoly Steels. For bulk sourcing, waterjet cutting, or precision sheet requirements for aerospace structurals or motorsport frames, request a quote below.
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.