Amigo Impex has been operating since 2013 as an Inconel 625 bar manufacturer, supplier, and exporter, holding material made to ASTM B446 / ASME SB-446 requirements. Round bar forms the core of our Inconel 625 bar stock. Cutting, machining and threading are handled in-house before dispatch, and every bar leaves with full heat-number traceability.
Inconel 625 rods carry a nickel-chromium-molybdenum-niobium chemistry. Molybdenum and niobium contribute to the alloy's solid-solution strengthening, so the bar does not need a separate precipitation-hardening treatment to reach full strength. Grade 1 material, annealed, carries an 827 MPa minimum tensile and a 414 MPa yield floor in diameters up to 102 mm. The alloy resists pitting and crevice attack in chloride media and stays stable in mixed acids at elevated temperatures. The grade is used for shafts, fasteners and valve internals exposed to seawater, sour gas and aggressive chemical-processing environments.
As Inconel 625 round bar suppliers in Mumbai, we hold round bar from 3 mm to 500 mm in diameter in 0.5 m to 6.0 m lengths, plus hex, square, flat and forged profiles in bright, polished or black finish. Amigo Impex holds ISO 9001:2015, ISO 45001:2018 and AS9120B certification, and supplies PED 2014/68/EU documentation where the mill approval covers it.
ASTM B446 covers nickel-chromium-molybdenum-niobium alloy (UNS N06625) in hot-worked and cold-worked rod and bar, alongside two other alloys, with ASME SB-446 used as the matching ASME specification.
Procurement teams confirm against a specification number, even where the enquiry arrives under a trade name. ASTM B446 / ASME SB-446 governs Inconel 625 bars & rods; the table lists the bar-form specifications we supply to.
| Standard | Scope |
|---|---|
| ASTM B446 / ASME SB-446 | Nickel-chromium-molybdenum-niobium alloy (UNS N06625) rod and bar, in three heat-treated grades — see ASTM B446 specification |
| ASTM B564 / ASME SB-564 | Nickel alloy forgings and forging stock; applies where the item is supplied as a forging rather than as mill bar |
| AMS 5666 | Annealed alloy 625 bar, forgings and rings, aerospace quality |
| DIN 17752 | Nickel alloy rod and bar, includes 2.4856 |
| BS 3076 NA21 | Nickel alloy bar, Alloy 625 |
Molybdenum at 8.0–10.0% and niobium plus tantalum at 3.15–4.15% carry the strengthening load in UNS N06625, designated in Europe as NiCr22Mo9Nb. The full ASTM B446 limits appear below.
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 58.0 min |
| Chromium (Cr) | 20.0–23.0 |
| Molybdenum (Mo) | 8.0–10.0 |
| Niobium + Tantalum (Nb + Ta) | 3.15–4.15 |
| Iron (Fe) | 5.0 max |
| Cobalt (Co) | 1.0 max |
| Manganese (Mn) | 0.50 max |
| Silicon (Si) | 0.50 max |
| Aluminium (Al) | 0.40 max |
| Titanium (Ti) | 0.40 max |
| Carbon (C) | 0.10 max |
| Phosphorus (P) | 0.015 max |
| Sulphur (S) | 0.015 max |
Room-temperature minima for N06625 bar depend on both delivery condition and diameter. Grade 1 holds 827 MPa tensile and 30% elongation up to 102 mm, then steps down to 758 MPa and 25% between 102 mm and 254 mm. Grade 2 holds 690 MPa and 30% across all sizes. Grade 1 is annealed at 871°C (1600°F) minimum; Grade 2 is solution annealed at 1093°C (2000°F) minimum, with or without a stabilisation anneal at 982°C (1800°F) minimum. Grade 1 figures in ASTM B446 are banded by diameter and stop at 254 mm; above that, Grade 1 properties are supplied by agreement rather than by the standard. Grade 2 minima apply at all sizes.
| Property | Grade 1, up to 102 mm | Grade 1, over 102 to 254 mm | Grade 2, all sizes | Unit |
|---|---|---|---|---|
| Tensile strength, min | 827 (120) | 758 (110) | 690 (100) | MPa (ksi) |
| Yield strength (0.2% offset), min | 414 (60) | 345 (50) | 276 (40) | MPa (ksi) |
| Elongation in 50 mm, min | 30 | 25 | 30 | % |
ASTM B446-24 lists three grades for UNS N06625. They are not separate alloys; heat treatment and cold work alone separate them. Earlier editions, including B446-19, listed only Grade 1 and Grade 2, so confirm which edition your approved specification calls out. Grade 1 is annealed, Grade 2 is solution annealed, and Grade 3 is solution-annealed and cold worked for higher strength.
Grade 1 bar is annealed at 871°C minimum. Up to 102 mm diameter it carries 827 MPa minimum tensile, 414 MPa minimum yield and 30% minimum elongation. Specify Grade 1 where room-temperature strength governs: shafts, fasteners, valve stems and machined components.
Grade 2 bar receives a full solution anneal at 1093°C minimum. The minima drop to 690 MPa tensile and 276 MPa yield at the same 30% elongation. It is the condition to specify for creep and rupture service above 593°C (1100°F).
Grade 3 bar is solution annealed and then cold worked to raise strength above the Grade 1 and Grade 2 minima. It is specified where higher room-temperature strength is needed than Grade 1 or Grade 2 delivers.
A drawing marked W.Nr. 2.4856, NiCr22Mo9Nb, NCF 625, NA 21 or GH3625 describes the material we certify as UNS N06625; there is no metallurgical difference between these five designations. ХН75МБТЮ (ЭИ602) is often quoted as the Russian analogue, but its chemistry differs from N06625 and it is not a drop-in substitute. Confirm the exact specification before ordering against a GOST drawing.
| Country / Standard | Designation |
|---|---|
| USA (UNS) | UNS N06625 |
| Europe (EN / W.Nr) | NiCr22Mo9Nb / W.Nr. 2.4856 |
| Germany (DIN) | DIN 17752, 2.4856 |
| UK (BS) | NA 21 (BS 3076 NA21) |
| France (AFNOR) | NC22DNb / NC22DNb4M |
| Japan (JIS) | NCF 625 (JIS G 4901 NCF625B for bar) |
| China (GB) | GH3625 / GH625 |
| Russia (GOST 5632) | ХН75МБТЮ (ЭИ602), nearest listed analogue only |
Diameter availability settles most enquiries before price enters the discussion. Our Inconel 625 round bar stock covers 3 mm to 500 mm, with hex, square and flat profiles also available.
| Profile | Dimension | Range |
|---|---|---|
| Round Bar | Diameter | 3 mm to 500 mm |
| Round Bar | Length | 0.5 m to 6.0 m |
| Hex Bar | Across flats (A/F) | 3 mm to 180 mm |
| Hex Bar | Length | 0.5 m to 6.0 m |
| Square Bar | Side width | 3 mm to 200 mm |
| Square Bar | Length | 0.5 m to 6.0 m |
| Flat / Rectangular Bar | Thickness | 3 mm to 100 mm |
| Flat / Rectangular Bar | Width | 10 mm to 250 mm |
| Flat / Rectangular Bar | Length | 0.5 m to 6.0 m |
Beyond size, the profile completes an Inconel 625 rod or bar order.
We pack Inconel 625 bars & rods on wooden pallets, in boxes, or in crates, with small-diameter Nickel Alloy 625 bars bundled and every length marked with heat number, grade, and specification. As a stockist and exporter, Amigo Impex dispatches PAN India and consolidates export consignments at our Mumbai facility before shipment. An EN 10204 3.1 or 3.2 mill test certificate travels with each order, and third-party inspection is arranged on request. Delivery timelines are confirmed in the quotation.
Every bar consignment ships with an EN 10204 3.1 or 3.2 mill test certificate covering chemical, tensile, hardness and mechanical results, with PMI and IGC reports issued on request. Ultrasonic and pitting tests can be arranged. Amigo Impex holds ISO 9001:2015, ISO 45001:2018 and AS9120B certification, and supplies PED 2014/68/EU documentation where the mill approval covers it, with third-party inspection available where applicable.
Inconel 625 bars and rods are priced at ₹2,000 to ₹3,200 per kg in India, which works out to roughly US$21 to US$34 per kg at current exchange rates. Prices vary by size, form, quantity, finish, certification, and nickel-market movements; quotations include validity periods.
Contact Amigo Impex today for Inconel 625 bars and rods pricing.
Request a Quote60–70 tonnes held in Mumbai, with urgent requirements dispatched within one to two days.
AS 9120B, PED, ISO 9001:2015 and ISO 45001:2018, with an MTC on every order.
Cutting, machining, threading, fabrication and testing all handled at our own Mumbai facility.
Original mill certificates plus our own test reports, so every batch can be traced back.
Non-standard sizes and specifications made to order.
Dispatched from Mumbai to every major Indian city, and exported to USA, Gulf, Europe, Asia
Inconel 625 bars and rods are priced at ₹2,000 to ₹3,200 per kg in India, which works out to roughly US$21 to US$34 per kg at current exchange rates. The final rate depends on diameter, delivery condition, finish and quantity.
We stock round bar from 3 mm to 500 mm in diameter, hex bar 3 mm to 180 mm across flats, square bar from 3 mm to 200 mm and flat bar from 3 mm to 100 mm thick and 10 mm to 250 mm wide, in 0.5 m to 6.0 m lengths.
ASTM B446, adopted by ASME as SB-446, covers Inconel 625 bars and rods in UNS N06625. Forgings are supplied to ASTM B564 / ASME SB-564. Aerospace-quality bar is supplied to AMS 5666.
The difference between Grade 1 and Grade 2 is heat treatment: Grade 1 is annealed at 871°C minimum and carries 827 MPa tensile and 414 MPa yield up to 102 mm, dropping to 758 MPa and 345 MPa between 102 mm and 254 mm. Grade 2 is solution-annealed at 1093°C minimum and carries 690 MPa and 276 MPa across all sizes. Grade 2 is specified for service above 593°C where creep and rupture resistance is required.
Yes. W.Nr. 2.4856 is the European number for the alloy written NiCr22Mo9Nb in EN and UNS N06625 in the USA, so bar ordered under any of the three designations is the same grade.
Yes. Inconel 625 bars and rods can be cut to any specified length in-house before dispatch; out-of-stock sizes are procured to specification.
ERNiCrMo-3, classified under AWS A5.14, is the matching filler metal used to weld Inconel 625 bar. Heat input stays controlled to limit Laves phase formation and hot cracking in the weld metal.
To calculate the weight of an Inconel 625 round bar, multiply the diameter in millimetres squared by 0.006629. For example, a 50 mm bar works out at about 16.6 kg per metre.
Nickel Alloy 625 bar and Alloy 625 rod serve industries where chlorides, mixed acids or high temperature govern selection.
