Aerospace
Nickel Alloy 718 strip is used in turbine seals, honeycomb structures, and engine heat shields. Its strength holds through thermal cycling to about 650 °C, and the aged temper resists fatigue in engine hardware.
What are Inconel 718 Strips?
Inconel 718 strip is a nickel-chromium superalloy that is precipitation hardened and not only cold worked. Niobium and molybdenum form gamma double-prime precipitates when the strip is solution treated and aged, lifting tensile strength past 1240 MPa. The alloy holds this strength up to about 650 °C and resists creep, fatigue, and oxidation, which suits turbine and spring components.
We slit and process each coil on our own lines, supplying Alloy 718 strip in widths from 3 mm to 2000 mm to ±0.1 mm. Stock is held solution annealed for forming and aged or cold worked to spring temper per order, with traceable documentation on every dispatch.
Specifications of Inconel 718 Strips
We provide UNS N07718 strip to ASTM B670, AMS 5596, and AMS 5597 in thicknesses of 0.03 mm to 5 mm and slit widths from 3 mm, as set out below.
| Parameter | Details |
|---|---|
| Standard | ASTM B670 / AMS 5596 / AMS 5597 |
| Thickness | 0.03 mm to 5 mm |
| Width | 3 mm to 2000 mm |
| Width Tolerance | ±0.1 mm |
| Supply Forms | Hot Rolled and Cold Rolled |
| Surface Finish | BA (Bright Annealed), 2B, Matte, Skin Pass |
| Edge | Slit, Mill, Deburred, Round |
Chemical Composition of Inconel 718 Strips
Niobium at 4.75 to 5.50%, with molybdenum and titanium, drives the age hardening that defines Alloy 718 strip, forming strengthening precipitates during heat treatment. The full AMS 5596 composition follows.
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 50.0 to 55.0 |
| Chromium (Cr) | 17.0 to 21.0 |
| Iron (Fe) | Balance |
| Niobium + Tantalum (Nb+Ta) | 4.75 to 5.50 |
| Molybdenum (Mo) | 2.80 to 3.30 |
| Titanium (Ti) | 0.65 to 1.15 |
| Aluminium (Al) | 0.20 to 0.80 |
| Cobalt (Co) | 1.0 max |
| Carbon (C) | 0.08 max |
| Manganese (Mn) | 0.35 max |
| Silicon (Si) | 0.35 max |
| Copper (Cu) | 0.30 max |
| Boron (B) | 0.006 max |
| Phosphorus (P) | 0.015 max |
| Sulphur (S) | 0.015 max |
Mechanical Properties of Inconel 718 Strips
718 Inconel strip gains its strength from heat treatment, not from just work hardening. In the solution annealed condition, it stays soft and formable, with a tensile strength of near 965 MPa, so buyers can draw and bend it before ageing. After the solution treatment and aging cycle to AMS 5596, tensile strength rises above 1240 MPa with a yield near 1035 MPa.
We supply the strip solution annealed for forming, precipitation hardened for finished strength, and cold rolled to spring temper for flat springs. The annealed and aged rows are AMS 5596 minima; the spring temper row is indicative and certified per order.
| Condition | Tensile Strength (MPa) | Yield Strength (MPa) | Hardness |
|---|
Equivalent Grades of Inconel 718 Strips
Buyers who specify Inconel 718 strip alloy by a national designation can match it below, from W.Nr 2.4668 to GH4169.
| Country / Standard | Designation |
|---|---|
| USA (UNS) | N07718 |
| Europe (EN) | NiCr19Fe19Nb5Mo3 |
| Germany (W.Nr) | 2.4668 |
| Japan (JIS) | NCF 718 |
| China (GB) | GH4169 |
Industrial Applications of Inconel 718 Strips
Alloy 718 strip is specified wherever high strength and fatigue resistance must survive heat. These 4 industries rely on these Incoloy Strips the most.
Oil and Gas
Inconel 718 winding strip is used in downhole tools, springs and wellhead components due to its resistance to sour service and sulphide stress cracking. The aged strip maintains high yield strength under stress in corrosive well fluids.
Power Generation
Alloy 718 strip for gas turbine parts, diaphragms and sealing rings, for creep strength and oxidation resistance. The precipitation hardened condition offers dimensional stability under long term thermal exposure in combustion environments.
Automotive and Motorsport
Turbocharger components, exhaust gaskets, and valve springs rely on Inconel 718 strip, where heat and vibration defeat lesser alloys. Its high-cycle fatigue strength suits motorsport springs and a thin sealing strip near the exhaust.
Shipping & Packaging
We dispatch Inconel 718 strips from our Mumbai and Taloja warehouses in wooden cases or pallets.
| Parameter | Details |
|---|---|
| Packaging | Wooden cases, pallet packing |
| Incoterms | FOB, CIF, CFR, EXW Mumbai |
| Dispatch Points | Mumbai, Taloja |
| Standard Lead Time | 4 to 5 days |
| Urgent Dispatch | 2 to 3 days |
| Payment Terms | Advance, credit, LC |
| Certification | EN 10204 Type 3.1 / 3.2 on request |
Inconel 718 Strips Price
Indicative pricing for Inconel 718 strip runs from Rs 3000 to Rs 5000 per kg for Indian buyers and USD 40 to USD 75 per kg for export. Rates depend on thickness, width, temper, quantity, and nickel market movement. Send us your specification for a firm quote.
Why Choose Riddhi Siddhi Impex?
Fast delivery
Best Quality
Availability of all materials
Frequently Asked Questions
What are Inconel 718 Strips used for?
Inconel 718 strips are used for turbine seals, springs, downhole tools, and exhaust components across the aerospace, oil and gas, power, and automotive sectors up to about 650 °C.
What thickness and width range is available for Inconel 718 Strips?
Inconel 718 strips are available from 0.03 mm to 5 mm thick and 3 mm to 2000 mm wide, both held to ±0.1 mm.
How is Inconel 718 Strip heat treated to reach full strength?
Inconel 718 strip reaches full strength through a solution treat and age cycle. Further ageing forms gamma double-prime and increases tensile strength above 1240 MPa.
What is the difference between solution annealed and aged Inconel 718 Strip?
The difference between solution annealed and aged Inconel 718 strip is that it stays soft near 965 MPa for forming, while aged strip is precipitation hardened above 1240 MPa tensile with 36 to 47 HRC for finished service.
What is the indicative price of Inconel 718 Strips per kg?
The indicative price of Inconel 718 strips is Rs 3000 to Rs 5000 per kg in India and USD 40 to USD 75 per kg for export, subject to gauge, temper, and market rates.
What standards cover Inconel 718 Strips?
ASTM B670, AMS 5596 for solution treated and AMS 5597 for annealed material under the designation UNS N07718.
Where can I source Inconel 718 Strips in India?
You can source from a reliable Inconel 718 Strip supplier and manufacturer, like Riddhi Siddhi Impex in India. Send your requirement on call or WhatsApp for a quote within 24 hours.