Manufacturer, Supplier & Exporter of Aerospace Round Bar
Riddhi Siddhi Impex is a leading manufacturer and domestic supplier of Aerospace Round Bars in India. These bars are specifically engineered for the demanding aerospace sector, offering high strength-to-weight ratios, exceptional durability, and resistance to extreme environmental conditions, including high temperature, pressure, and corrosion...
Aerospace Round Bars are available in high-performance grades such as Titanium Grade 5 (Ti-6Al-4V), Titanium Grade 2, Inconel 718, Inconel 625, Aluminum 7075, and Stainless Steel 17-4 PH. These materials are carefully selected for their mechanical properties, corrosion resistance, and ability to perform under fatigue and stress conditions typical of aerospace applications.
Riddhi Siddhi Impex produces Aerospace Round Bars using precision forging, hot rolling, cold drawing, and heat treatment techniques. Each bar undergoes stringent quality control testing, including chemical composition analysis, tensile and yield strength testing, hardness measurement, and non-destructive testing (NDT). This ensures compliance with international standards such as ASTM, AMS, EN, DIN, and ISO..
These round bars exhibit excellent tensile strength, yield strength, fatigue resistance, and toughness. Titanium and nickel-based aerospace alloys offer superior strength-to-weight ratios, while aluminum alloys provide lightweight solutions. These mechanical properties make them suitable for critical aerospace components like landing gears, engine shafts, and structural airframe elements.
Riddhi Siddhi Impex supplies Aerospace Round Bars across India, covering major aerospace and industrial hubs such as Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, Chandigarh, Mysuru, Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nashik, Kolhapur, Chandrapur, Akola, Vilayat, Somnath, Dahej, Narmada, Ankleshwar, Navsari, Valsad, Rajpipla. Their robust distribution network ensures timely delivery to aerospace manufacturers, maintenance, and repair organizations..
Aerospace Round Bar — Typical Specifications
Below are representative, industry-typical specifications for commonly used aerospace round-bar alloys. Use mill certificates (MTC) and customer purchase orders to confirm exact values for each lot.
1) Titanium — Ti-6Al-4V (Grade 5) — Typical
| Specification | Typical / Range |
|---|---|
| Material name | Ti-6Al-4V (Grade 5) |
| Common Standards / Equivalent | ASTM B348 (bar), AMS 4928, ISO 5832-3 (rough equivalents) |
| Chemical composition (wt%) | Al 5.5–6.75, V 3.5–4.5, Fe ≤0.3, O ≤0.2, N ≤0.05, C ≤0.08, Ti balance |
| Typical tensile strength (Rm) | 900–1100 MPa (heat-treated / depending on condition) |
| Typical yield strength (Rp0.2) | 820–950 MPa |
| Elongation (A) | 10–20% (depending on diameter & condition) |
| Hardness | ~30–40 HRC (varies with heat treatment) |
| Applications | Airframe fittings, rotor/engine components, fasteners, structural machined parts |
2) Aluminium — 7075-T6 — Typical
| Specification | Typical / Range |
|---|---|
| Material name | Aluminium 7075-T6 |
| Common Standards / Equivalent | ASTM B211 (bars/rods), EN AW-7075, AMS-QQ-A-250 (some forms) |
| Chemical composition (wt%) | Zn 5.1–6.1, Mg 2.1–2.9, Cu 1.2–2.0, Cr 0.18–0.28, Fe ≤0.5, Si ≤0.4, Ti ≤0.2, Al balance |
| Typical tensile strength (Rm) | 490–540 MPa |
| Typical yield strength (Rp0.2) | 435–480 MPa |
| Elongation (A) | 5–11% |
| Hardness | ~150–170 HV |
| Applications | High-strength airframe components, fittings, machined lightweight structures |
3) Nickel-Base — Inconel 718 — Typical
| Specification | Typical / Range |
|---|---|
| Material name | Inconel 718 (UNS N07718) |
| Common Standards / Equivalent | AMS 5662/5663 (bars), ASTM B637 (for forged bars), EN equivalents |
| Chemical composition (wt%) | Ni balance, Cr 17–21, Fe 18.0 (balance), Nb+Ta 4.75–5.5, Mo 2.8–3.3, Ti 0.65–1.15, Al 0.2–0.8, C ≤0.08 |
| Typical tensile strength (Rm) | 1200–1400 MPa (age-hardened) |
| Typical yield strength (Rp0.2) | 1030–1250 MPa |
| Elongation (A) | 10–25% depending on condition and diameter |
| Hardness | ~36–44 HRC (age hardened) |
| Applications | High-temperature engine components, turbine shafts, structural hot-section parts |
4) Stainless Steel — 316 / 316L — Typical
| Specification | Typical / Range |
|---|---|
| Material name | SS 316 / 316L |
| Common Standards / Equivalent | ASTM A276 (bars), AMS 5659, EN 10088 equivalents |
| Chemical composition (wt%) | Cr 16–18, Ni 10–14, Mo 2–3, C ≤0.08 (316) / ≤0.03 (316L), Mn ≤2, Si ≤1 |
| Typical tensile strength (Rm) | 480–620 MPa |
| Typical yield strength (Rp0.2) | 170–300 MPa |
| Elongation (A) | 40% (approx, depends on size & finish) |
| Hardness | ~150–220 HV |
| Applications | Corrosion-resistant fittings, hydraulic components, environmental enclosures |
Dimension Chart — Typical Supply Ranges & Tolerances (Round Bar)
| Diameter Range (mm) | Typical Tolerance (diameter) | Typical Lengths | Typical Supply Condition |
|---|---|---|---|
| 3.0 — 12.0 mm | ±0.05 mm | 1.0 m, 1.5 m, custom cut | Cold drawn / centerless ground / turned |
| 12.0 — 50.0 mm | ±0.08 mm | 1.0–3.0 m (cut-to-length available) | Hot-rolled / turned / normalized |
| 50.0 — 150.0 mm | ±0.10–0.25 mm | 1.0–6.0 m | Forged / hot-rolled / turned |
| 150.0 — 300.0 mm | ±0.25–0.50 mm | 1.5–6.0 m (special handling) | Forged / large-diameter turned |
Tolerances vary by material, diameter and finishing process (ground bars have the tightest tolerances). Riddhi Siddhi Impex can supply centerless ground/turned bars with tighter tolerances on request.
Equivalent Grade / Typical Industry Equivalents (quick reference)
| Common Name | Typical Equivalent Grades / Spec |
|---|---|
| Ti-6Al-4V | ASTM B348 / AMS4928 / ISO 5832-3 (commonly called Grade 5) |
| Aluminium 7075-T6 | EN AW-7075 / ASTM B211 (bars/rods) / AMS-QQ-A-250 (some forms) |
| Inconel 718 | UNS N07718 / AMS 5662/5663 / ASTM B637 |
| Stainless 316 / 316L | ASTM A276 / EN 10088 / AMS 5659 |
Other Types / Alloys Commonly Supplied for Aerospace
- Aluminium: 2024-T3, 6061-T6, 7050
- Titanium: Ti-6Al-4V ELI (Grade 23), CP-Ti (Grades 1–4)
- Nickel Alloys: Inconel 625, Waspaloy
- Steels: 4340, 300M, 17-4PH (precipitation hardening stainless)
- Specialty: Ceramic-coated bars, cryo-treated bars, and bespoke age-hardened conditions
Aerospace Round Bars are designed to resist oxidation, stress corrosion, crevice corrosion, and fatigue cracking under extreme operational conditions. The use of titanium, nickel-based superalloys, and aluminum alloys ensures extended service life, reduced maintenance costs, and reliable performance in challenging aerospace environments..
Frequently Asked Questions (FAQs)
- Q1: Can you supply custom diameters, length cuts and surface finishes?
- A1: Yes — typical services include cut-to-length, centerless grinding, turning, polishing, passivation, protective end-caps, and special packaging for export or sensitive components.
- Q2: What documents do you provide for aerospace procurement?
- A2: Riddhi Siddhi Impex can provide Mill Test Certificates (MTC), heat number traceability, dimensional reports, NDT reports (UT/Eddy current), and vendor qualification packs as per buyer requirements.
- Q3: How do you ensure material traceability and quality?
- A3: Each lot is traceable to the heat number and furnace melt; incoming inspection, spectrochemical analysis, mechanical testing, and visual/NDT checks are performed per order requirements. Customer audits and source-inspection are supported.
- Q4: Do you stock these materials across India or supply on order?
- A4: Riddhi Siddhi Impex maintains regional stocks for commonly ordered alloys and also offers project-based procurement and direct imports for specialty lots. Local delivery options are available in major industrial cities across India.
Cities we have supplied our products to
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Countries we have supplied our products to
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