Amigo Impex is an Inconel 625 Pipes & Tubes manufacturer and supplier based in Mumbai, India, certified to AS 9120B, PED, ISO 9001:2015 and ISO 45001:2018. We've stocked and exported nickel alloy piping for over a decade, and roughly 60-70 tonnes of material are stocked for quicker dispatch.
Inconel 625 is a nickel-base superalloy carrying the designation UNS N06625. Nickel holds a 58.0% minimum share of the chemistry, backed by 20.0-23.0% chromium. That balance keeps the pipe wall stable against pitting, crevice attack, oxidation and chloride stress corrosion cracking, from cryogenic duty through elevated-temperature service. Strength minima are equally firm: annealed pipe and tube must reach 827 MPa (120 ksi) tensile and 414 MPa (60 ksi) yield under the governing specification.
Production covers seamless pipe from ½" to 8" NB, tube from 1/16" to 4" OD, and schedules SCH 5S, 10S, 40S and 80S dimensioned to ASME B36.19M. Seamless lengths are certified against ASTM B444 / ASME SB-444, with general requirements to ASTM B829. Welded pipe is certified to ASTM B705 / ASME SB-705 and welded tube is certified to ASTM B704 / ASME SB-704. Cutting, machining, threading, fabrication, testing and packing run in-house.
Oil and gas wellhead lines, chemical processing circuits, and power station tubing account for most of the demand we see for this grade. As trusted Inconel 625 pipe suppliers, our domestic supply covers pan-India, while export consignments move from Mumbai to the USA, the Gulf, Europe, and Asia. Share the size list and schedule with our Mumbai team to receive a certified offer.
Various parameters define the ordering envelope for Inconel 625 Pipes & Tubes, from the governing standard and supply condition through to the physical constants that turn a metre count into weight. All values apply to material certified in Mumbai.
ASTM B444, adopted by ASME as SB-444, is the manufacturing specification for seamless nickel-chromium-molybdenum-columbium alloy pipe and tube. General requirements, schedule dimensions and welded construction are covered by separate documents, all listed below, with their scope.
| Standard | Scope |
|---|---|
| ASTM B444 / ASME SB-444 | Cold-worked seamless UNS N06625 pipe and tube; the governing manufacturing specification |
| ASTM B829 / ASME SB-829 | General requirements for nickel alloy seamless pipe and tube — tolerances, lot definition, dimensional tables |
| ASTM B705 / ASME SB-705 | Welded UNS N06625 pipe, annealed condition |
| ASTM B704 / ASME SB-704 | Welded UNS N06625 boiler, heat exchanger, and condenser tube (1/8" to 5" OD) |
| ASME / ANSI B36.19M | Dimensional standard for stainless steel pipe (SCH 5S, 10S, 40S, 80S); the same schedule wall thicknesses are applied to nickel alloy pipe, with tolerances per ASTM B829 (seamless) and ASTM B775 (welded). |
Corrosion performance in Alloy 625 pipe traces back to the composition limits below. Molybdenum at 8.0-10.0% and niobium plus tantalum at 3.15-4.15% produce the solid solution strengthening effect within the nickel-chromium matrix.
| 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 |
| 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 |
| Sulphur (S) | 0.015 max |
| Phosphorus (P) | 0.015 max |
| Cobalt (Co) | 1.0 max (if determined) |
Under ASTM B444 / ASME SB-444, the room-temperature minima below apply to Grade 1 annealed pipe and tube, the standard supply state. Grade 2 solution-treated material suits elevated-temperature and creep service and is produced on order.
| Property | Minimum Value | Condition |
|---|---|---|
| Tensile Strength | 827 MPa (120 ksi) | Grade 1 (Annealed) |
| Yield Strength (0.2% offset) | 414 MPa (60 ksi) | Grade 1 (Annealed) |
| Elongation | 30% | Grade 1 (Annealed) |
European engineering drawings frequently specify 2.4856 or NiCr22Mo9Nb rather than Inconel 625. Regardless of the designation used, all options refer to the material we supply as ASTM B444 UNS N06625, allowing a single mill certificate to resolve the requirement.
| Country / Standard | Designation |
|---|---|
| USA (UNS) | UNS N06625 |
| Europe (EN / W.Nr) | 2.4856 / NiCr22Mo9Nb |
| Germany (DIN) | DIN 17751 |
| UK (BS) | BS 3074 NA21 |
| International (ISO) | ISO 6207 |
| Japan (JIS) | NCF 625 TP (pipe) / NCF 625 TB (tube) |
Alloy Pipe and tube run on separate dimensional envelopes, so both appear here. Seamless production is standard up to 8" NB; where seamless doesn't reach, welded construction with 100% X-ray inspection extends the range on order.
| Product | Parameter | Range |
|---|---|---|
| Pipe | Nominal Bore | ½" to 8" NB (15 NB to 200 NB); fabricated, welded to 20" on order |
| Pipe | Schedule | SCH 5, 10, 40, 80 |
| Pipe | Wall Thickness | 0.5 mm to 23 mm |
| Tube | Outside Diameter | 1/16" to 4" |
| Tube | Wall Thickness | 0.010" to 0.250" |
| Pipe and Tube | Length | 20 ft random; cut to length on request |
These are the types of Inconel 625 Pipes & Tubes that cover the construction routes, configurations and duty-specific tube forms in our range:
We pack Alloy 625 pipes and tubes in bundles or wooden cases, each length marked with grade, size, and heat number. Domestic consignments travel pan-India by road. As trusted alloy 625 pipe suppliers, stockists, and exporters, Amigo Impex ships by sea from Mumbai to the USA, the Gulf, Europe, and Asia. Urgent despatches leave within 1 to 2 days. Made-to-order material carries an approximate 30-day lead time.
Mechanical testing is carried out on one sample per lot as defined in ASTM B829, and every length is given a hydrostatic test or a non-destructive electric test as required by ASTM B444. The specification also demands a hydrostatic or non-destructive electric test on every pipe. Certification follows the same discipline: a mill test certificate traceable to the original heat travels with each consignment, and third-party inspection can be arranged at the order stage.
Inconel 625 Pipes & Tubes price is quoted per kilogram, in INR for domestic orders and USD for export. Indicative Indian market levels run from ₹1,950 to ₹3,900 per kg, which works out to roughly USD 20 to USD 41 per kg at the current exchange rate: welded pipe for chemical duty sits near the lower figure, seamless tube near the upper. Nickel dominates the input cost, so rates follow the traded metal market and stay subject to confirmation. Send dimensions and quantity for a firm per-kg quotation with a stated validity date.
Get the current price on ASTM B444 Alloy 625 pipe by sharing the form, size and quantity.
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
ASTM B444 / ASME SB-444 is the standard for Inconel 625 seamless pipe and tube in UNS N06625, with general requirements to ASTM B829 and schedule dimensions per ASME B36.19M. Welded pipe is covered by ASTM B705 / ASME SB-705 and welded tube by ASTM B704 / ASME SB-704.
Both constructions are available. Inconel 625 seamless pipe is supplied to
ASTM B444 / ASME SB-444 up to 8" NB. Welded pipe to ASTM B705 / ASME SB-705 and welded tube to ASTM B704 / ASME SB-704. Every piece is tested to the Class 1 or Class 2 requirement of the specification (hydrostatic or pneumatic leak test plus eddy-current or ultrasonic examination). Radiographic (X-ray) examination of the weld seam is offered as an additional, buyer-specified test on fabricated sizes.
₹1,950 to ₹3,900 per kg (approximately USD 20 to USD 41 per kg) is the indicative Indian market range for Inconel 625 pipes and tubes; the confirmed rate depends on form, size, schedule and quantity at the time of enquiry.
An argon back-purge is standard practice when TIG welding Inconel 625 pipe, since it shields the root bead from oxidation; the qualified welding procedure for the joint sets the exact purge requirement.
Alloy 625 piping serves eight industries where corrosive media and operating heat drive selection.
