DIPTI METAL INDUSTRIES
Dipti Metal Industries (A KMR Group Company) is the globally recognized AMS 5604 Supplier, AMS 5604 Exporter, and the foremost AMS 5604 Stockist of 17-4 PH Stainless Steel Sheet, Strip, and Plate in Mumbai, India. AMS 5604 dictates the stringent aerospace requirements for 17-4 PH, a martensitic, precipitation-hardening stainless steel heavily alloyed with copper and columbium (niobium). It is globally acclaimed for providing an outstanding combination of high strength, excellent corrosion resistance, and good toughness. Delivered in the readily formable Solution Annealed state (Condition A), it achieves immense mechanical properties (up to 190,000 psi UTS) through simple, low-temperature aging (Condition H900 to H1150). We are a premier AMS 5604 Distributor supplying certified Sheets, Foils, and Heavy Plates to the aerospace, defense, and offshore sectors worldwide.
Explore Other Aerospace Stainless Steel Grades
AMS 5512 (304L) AMS 5513 (304) AMS 5510 (321) AMS 5524 (316L) AMS 5528 (17-7 PH) AMS 5604 (17-4 PH) AMS 5645 (321 Bar)As a leading AMS 5604 Supplier in Mumbai, Dipti Metal Industries maintains a deeply integrated, highly specialized supply chain that makes us the primary AMS 5604 source for high-stress aerospace and defense fabrication. We source our 17-4 PH Stainless Steel exclusively from Certified Tier-1 Mills, ensuring the precise metallurgical balance required for uniform precipitation hardening without distortion.
AMS 5604 specifically governs the flat-rolled forms of 17-4 PH Stainless Steel (UNS S17400). The alloy achieves its staggering strength through precipitation hardening—a heat treatment process where copper-rich phases precipitate into the martensitic matrix. By adjusting the aging temperature (between 900°F and 1150°F), fabricators can precisely dial in the desired balance of strength, ductility, and toughness for their specific application.
| 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 matrix |
| Copper (Cu) | 3.00 - 5.00 | Primary element for precipitation hardening |
| Columbium (Nb) + Ta | 0.15 - 0.45 | Refines grain structure, aids precipitation |
| Carbon (C) | 0.07 max | Kept low to ensure toughness and weldability |
| Manganese (Mn) | 1.00 max | Improves hot workability |
| Silicon (Si) | 1.00 max | Enhances scaling resistance |
Phosphorus and Sulfur are restricted to 0.040% max and 0.030% max, respectively, ensuring high fatigue life and weldability.
| 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% | ≥ 8.0% |
| Hardness (HRC) | ~32 - 38 HRC max | ≥ 40 - 47 HRC |
| Impact Toughness | Excellent | Moderate |
Our AMS 5604 sheets and plates are supplied in Condition A (Solution Annealed). This allows the fabricator to easily stamp, bend, and machine the part before performing the low-temperature (900°F) aging process, which causes practically zero dimensional distortion.
17-4 PH Stainless Steel is specified under a variety of designations depending on the product form. AMS 5604 represents the premium aerospace standard dedicated to flat-rolled sheets, strips, and plates.
| Standard | Designation / Grade | Sector Focus |
|---|---|---|
| AMS (Aerospace) | AMS 5604 (Sheet, Strip, Plate) | Aerospace Structurals & Bulkheads |
| AMS (Aerospace) | AMS 5643 (Bars, Wire, Forgings) | Machined Fittings, Shafts, Fasteners |
| UNS (Unified Numbering System) | S17400 | Global Engineering Data |
| ASTM / ASME | ASTM A693 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 |
As the primary AMS 5604 Stockist in Mumbai, we maintain an immense inventory of 17-4 PH flat products. Our advanced processing division custom-sizes material to strict tolerances, ready for your heat treatment.
Dipti Metal Industries supplies AMS 5604 for applications where the corrosion resistance of 304 is required, but the structural load demands double the yield strength of standard austenitic steel.
As a Worldwide AMS 5604 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.
When you partner with Dipti Metal Industries, you are collaborating with a technical authority in Aerospace Grade 17-4 PH Stainless Steel. For bulk coil sourcing, precision sheet shearing, or custom heavy plate profiling, 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.