We are Riddhi Siddhi Impex, a Mumbai-based Inconel 600 Shims manufacturer and supplier, established in 2002. We slit Alloy 600 (UNS N06600) shim stock in-house to ASTM B168 and AMS 5540 standards. Available from 0.03 to 5 mm thick and 3 to 2000 mm wide with ±0.1 mm tolerance, our ready stock supports a 400-500 ton monthly supply capacity. Our ISO 9001/14001/45001-certified company delivers globally with EN 10204 3.1/3.2 mill certificates upon request.
Inconel 600 shims are thin, flat spacers slit from a nickel-chromium-iron alloy holding a 72% minimum nickel content. Chromium at 14 to 17% builds the oxide film that stops scaling; the nickel base resists chloride stress-corrosion cracking and caustic alkalis. Density is near 8.47 g/cm³, and the grade is suitable for temperatures up to about 1093°C. Fitters place these shims wherever a gap must be set accurately in hot or corrosive service: flange joints, turbine casings, and furnace assemblies.
We are reliable Inconel 600 shim suppliers, providing precision-slitting of every Inconel 600 shim in-house to customer-specified widths rather than supplying only standard mill sizes. Material is supplied in annealed soft condition to ASTM B168, between 3 mm and 2000 mm. Buyers can choose BA, 2B, or Matte surfaces. Our documented quality system covers every stage from incoming coil inspection through final dispatch.
We provide Inconel 600 Shim Stock to ASTM B168 in annealed soft condition, with three surface finishes and three edge options, supplied in coil from our inventory.
| Parameter | Details |
|---|---|
| Standard | ASTM B168 / ASME SB-168, AMS 5540 |
| Thickness | 0.03 mm to 5 mm |
| Width | 3 mm to 2000 mm |
| Width Tolerance | ±0.1 mm |
| Condition | Annealed (Soft) |
| Surface Finish | BA (Bright Annealed), 2B, Matte |
| Edge | Slit edge, Deburred edge, Round edge |
| Supply form | Cold rolled |
Nickel defines this grade. Alloy 600 shims hold a 72% minimum, which drives resistance to reducing media and caustic soda, and 14 to 17% chromium provides oxidation resistance. The ASTM B168 chemical composition is shown below.
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 72.0 min |
| Chromium (Cr) | 14.0 to 17.0 |
| Iron (Fe) | 6.0 to 10.0 |
| Carbon (C) | 0.15 max |
| Manganese (Mn) | 1.00 max |
| Silicon (Si) | 0.50 max |
| Copper (Cu) | 0.50 max |
| Sulphur (S) | 0.015 max |
Annealed Nickel Alloy 600 shims provide a minimum tensile strength of 550 MPa with 30% elongation, so they punch and form cleanly. ASTM B168 sets no yield requirement below 0.508 mm thickness; values for thinner gauges stay indicative.
| Property | Value |
|---|---|
|
Tensile Strength, minimum
|
550 MPa (80 ksi) |
|
Yield Strength (0.2% offset), minimum
|
240 MPa (35 ksi) |
|
Elongation in 50 mm, minimum
|
30% |
International buyers can cross-reference UNS N06600 shims against their regional standard below. Our Alloy 600 shims correspond to the equivalent designations listed below.
| Country / Standard | Designation |
|---|---|
| USA (UNS) | N06600 |
| Europe (EN) | NiCr15Fe |
| Germany (W.Nr) | 2.4816 |
| Japan (JIS) | NCF 600 |
| UK (BS) | NA 14 |
| France (AFNOR) | NC15Fe |
| China (GB) | NS312 |
These 4 industries often utilise the Inconel 600 shims we slit. Buyers pick the grade for oxidation resistance and stability at temperature rather than for hardness or spring properties.
Chemical plants fit Alloy 600 shims around reactor flanges, heat exchanger shells, and pump housings carrying hot caustic or chloride streams. Stainless spacers crack under chloride stress corrosion within months; the high nickel base doesn't. The shims hold their thickness, keeping flange gaps and seal faces true.
Aerospace assemblers order AMS 5540 shim stock to set clearances in turbine casings, exhaust ducting, and engine mounts. The alloy keeps its strength at red heat, so repeated thermal cycling won't loosen the fit. A shim slit to ±0.1 mm installs without on-site trimming, so stack-up calculations stay accurate.
Power stations and heat-treatment shops place Inconel shims under boiler hardware, furnace rails, and radiant tube supports. Scaling resistance up to about 1093°C lets the spacers sit in direct flue gas without losing section. Carbon steel spacers oxidise much more rapidly under the same conditions.
Nuclear steam generators and reactor internals rely on Nickel Alloy 600 shims for alignment in high-purity water circuits. The grade shows a very low corrosion rate in that environment and resists chloride-ion stress corrosion cracking. Tight gauge control supports the clearance documentation that nuclear quality programmes demand.
As an Inconel 600 Shims exporter, we pack orders in wooden cases or on pallets at Mumbai and Taloja for worldwide dispatch.
| Parameter | Details |
|---|---|
| Packaging | Wooden cases, pallet packing |
| Incoterms | FOB, CIF, CFR, EXW Mumbai |
| Dispatch Points | Mumbai and Taloja warehouses |
| 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 600 Shims price range in India is around ₹3,000 to ₹4,500 per kg. For export buyers, it is generally $32 to $47 per kg. The figure tracks global nickel rates, and thickness, width, finish, and quantity shift it. Wholesale and bulk orders draw volume discounts, so call or WhatsApp us for today's rate.
We slit Inconel 600 shim stock from 0.03 mm to 5 mm thick and to any width between 3 mm and 2000 mm. Anything below 0.03 mm falls under our Inconel 600 foil range.
The maximum service temperature for Inconel 600 shims is about 1093°C in air, where the grade keeps useful oxidation resistance. Actual limits depend on load and the operating atmosphere.
Some of the surface finishes we offer are BA, 2B, and Matte. Round or deburred edges suit gasket and instrument work where a sharp slit edge would damage adjacent parts.
The typical lead time for custom-slit Inconel 600 shims is 4 to 5 days from ready stock at our Mumbai and Taloja warehouses. Urgent orders leave in 2 to 3 days.
You can source Inconel 600 shims in India from us at Riddhi Siddhi Impex. Our Mumbai warehouse holds Inconel shim inventory on the shelf, ready for immediate dispatch. As a manufacturer, supplier, and exporter, we serve buyers across India and export overseas. Phone or WhatsApp us; quotes will be provided within 24 hours.
