Inconel Bars & Rods
Inconel Alloys bars & rods supplied to ASTM B166 / B446 from our Mumbai stockyard. Inconel is a family of nickel-chromium alloys used where stainless steel fails: high temperature oxidation, aggressive acids, and combinations of heat, pressure and corrosion. The nickel base makes them essentially immune to chloride stress corrosion cracking. We supply Inconel in pipe, tube, bar, fittings, flanges and fasteners.
Governing Standards for Inconel Bars & Rods
State the standard on your enquiry and we will confirm stock against it.
| Standard | Covers |
|---|---|
| ASTM B166 / B446 | Bar and rod |
Inconel Chemical Composition (%)
Composition and mechanical values are the limits set by the governing ASTM specification and are given for reference. The mill test certificate supplied with your consignment carries the actual heat analysis.
| Element | Inconel 600 | Inconel 625 | Inconel 718 |
|---|---|---|---|
| Nickel | 72.0 min | 58.0 min | 50.0 – 55.0 |
| Chromium | 14.0 – 17.0 | 20.0 – 23.0 | 17.0 – 21.0 |
| Iron | 6.0 – 10.0 | 5.0 max | Balance |
| Molybdenum | — | 8.0 – 10.0 | 2.80 – 3.30 |
| Niobium + Tantalum | — | 3.15 – 4.15 | 4.75 – 5.50 |
| Titanium | — | 0.40 max | 0.65 – 1.15 |
| Aluminium | — | 0.40 max | 0.20 – 0.80 |
| Carbon | 0.15 max | 0.10 max | 0.08 max |
Inconel Bars & Rods Specifications
Inconel Bars & Rods — Chemical Composition
| Grade | C | Mn | P | S | Si | Cr | Mo | Other |
|---|---|---|---|---|---|---|---|---|
| P1 / F1 | 0.10–0.20 | 0.30–0.80 | 0.025 | 0.025 | 0.10–0.50 | — | 0.44–0.65 | — |
| P5 / F5 | 0.15 | 0.30–0.60 | 0.025 | 0.025 | 0.50 | 4.00–6.00 | 0.45–0.65 | — |
| P9 / F9 | 0.15 | 0.30–0.60 | 0.025 | 0.025 | 0.25–1.00 | 8.00–10.00 | 0.90–1.10 | — |
| P11 / F11 | 0.05–0.15 | 0.30–0.60 | 0.025 | 0.025 | 0.50–1.00 | 1.00–1.50 | 0.44–0.65 | — |
| P22 / F22 | 0.05–0.15 | 0.30–0.60 | 0.025 | 0.025 | 0.50 | 1.90–2.60 | 0.87–1.13 | — |
| P91 / F91 | 0.08–0.12 | 0.30–0.60 | 0.020 | 0.010 | 0.20–0.50 | 8.00–9.50 | 0.85–1.05 | V 0.18–0.25, Nb 0.06–0.10, N 0.03–0.07 |
Note: Per ASTM A335 (pipe) and ASTM A182 (forgings). Chromium and molybdenum content is what sets creep strength and high-temperature service limits.
Inconel Bars & Rods — Mechanical Properties
| Grade | Tensile Strength (min) | Yield Strength (min) | Elongation (min) | Typical max service temp. |
|---|---|---|---|---|
| P1 | 380 MPa (55 ksi) | 205 MPa (30 ksi) | 30% | ≈ 480 °C |
| P5 | 415 MPa (60 ksi) | 205 MPa (30 ksi) | 30% | ≈ 620 °C |
| P9 | 415 MPa (60 ksi) | 205 MPa (30 ksi) | 30% | ≈ 650 °C |
| P11 | 415 MPa (60 ksi) | 205 MPa (30 ksi) | 30% | ≈ 565 °C |
| P22 | 415 MPa (60 ksi) | 205 MPa (30 ksi) | 30% | ≈ 595 °C |
| P91 | 585 MPa (85 ksi) | 415 MPa (60 ksi) | 20% | ≈ 650 °C |
Note: Specified minimum values per ASTM A335 in the normalised and tempered condition. P91 requires tightly controlled heat treatment to achieve its properties.
Inconel Bars & Rods — Size Range & Supply Condition
| Parameter | Range |
|---|---|
| Round bar diameter | 3 mm to 500 mm |
| Square bar | 4 mm to 100 mm |
| Hex bar across flats | 2 mm to 100 mm |
| Flat bar | 3 mm to 100 mm thick × 10 mm to 500 mm wide |
| Length | 100 mm to 6000 mm, or cut to length |
| Condition | Hot rolled, forged, cold drawn, centreless ground, peeled, polished, black |
| Standards | ASTM A276 / A479 / A484 / A582, ASTM A182 (forged), ASTM B164 / B166 / B446 (nickel) |
Inconel Bars & Rods — Ordering & Supply
| Parameter | Detail |
|---|---|
| Minimum order quantity | 5 kg (mixed sizes within a grade can be combined to reach the MOQ) |
| Price basis | Ex-works Mumbai, FOB or CIF — quoted per kg, per metre or per piece depending on the form |
| Lead time | Ready stock dispatched in 1–3 working days; mill orders typically 2–6 weeks |
| Certification | Mill test certificate to EN 10204 3.1 as standard; 3.2 with third-party witness, IBR and NACE MR0175 on request |
| Testing available | PMI, IGC (ASTM A262), hydrostatic, ultrasonic, radiographic, impact and hardness testing |
| Third-party inspection | Bureau Veritas, TÜV, DNV, SGS, Lloyd's Register, Intertek, RITES and client/EPC inspection |
| Packing | Wooden crates or pallets, plastic caps on pipe ends, VCI wrapping where required, seaworthy export packing |
| Payment terms | Advance, against proforma invoice, or LC at sight for export orders |
| Supply area | Across India and export to the Middle East, Europe, the USA, Africa and South East Asia |
| Product form | Bars |
Note: Cut lengths, non-standard sizes and special certification are available on request. Prices are quoted against grade, size, schedule and quantity.
Values shown are the specified minima and maxima published in the governing standards and are given for guidance. The mill test certificate supplied with your consignment reports the actual results for that heat.
When to specify Inconel for bar work
Choose Inconel when service temperature exceeds the practical limit of austenitic stainless, when chloride stress corrosion cracking must be eliminated, or when the medium is aggressive enough to attack 316 and duplex. 625 is the general corrosion-resistant choice, 600 the high-temperature oxidation choice, 718 the high-strength precipitation-hardened choice.
Products in this range
Inconel in other forms
Full composition, properties and equivalents on the Inconel Alloys grade page.
Frequently Asked Questions
- Which Inconel grade should I specify?
- 625 is the general-purpose corrosion-resistant grade, combining seawater and acid resistance with good strength — the usual choice for offshore and chemical duty. 600 is for high-temperature oxidation resistance in furnace and heat-treatment service. 718 is precipitation hardened for high strength up to around 700°C and is the standard choice for turbine and high-load fastener applications. Send us the medium, temperature and pressure and we will confirm.
- Why is Inconel so much more expensive than stainless steel?
- It is 50–72% nickel against 8–14% in austenitic stainless, and nickel is the dominant cost. Molybdenum and niobium additions raise it further, and the alloys are harder to melt, form and machine. Where the service genuinely demands it the whole-life cost is usually lower than repeatedly replacing failed stainless components.
Send your Inconel Bars & Rods requirement
Give us the size, schedule or thickness, quantity and standard and we will confirm stock and send a firm price. Minimum order quantity 5 kg, mill test certificate to EN 10204 3.1 with every consignment.