Clean weld HAZ in HCl service
Chemical Reactor OEM —
C-4 plates & flanges handled chloride service well; HAZ corrosion not observed post-shutdown inspection.
Hastelloy C-4 (UNS N06455, W.Nr 2.4610) is a Ni-Cr-Mo alloy renowned for microstructural stability in the weld HAZ and outstanding resistance in hydrochloric/sulfuric acids and chloride-bearing media. Ideal for chemical processing equipment, reactors, pickling lines, chlor-alkali plants and waste treatment. We manufacture and stock complete piping packages with rigorous QA for global projects (190+ countries, Pakistan excluded).
Send BOQ/drawings for fast quotations, MTCs and delivery.
Dipti Metal Industries is a largest and leading Hastelloy C-4 (UNS N06455 / WNR 2.4610) manufacturer, exporter, supplier, stockist, distributor and dealer in India. We deliver C-4 seamless/welded pipes & tubes, butt-weld and forged fittings, flanges, fasteners, valves/valve parts, sheets, plates, rods, bars, wires and custom forgings with full documentation (EN 10204 3.1/3.2 MTCs, PMI) and export packing.
Compliance: ASTM B622 (seamless pipe/tube), B619 (welded pipe), B626 (welded tube), B575 (plate/sheet/strip), B574 (bar/rod/wire), B366 (wrought fittings), B564 (flanges/forgings), plus ASME/DIN/EN/JIS/BS equivalents.
| Element | Ni | Cr | Mo | Fe | Co | Mn | Ti | Si | P | S | C |
|---|---|---|---|---|---|---|---|---|---|---|---|
| % | Balance | 14–18 | 14–17 | ≤ 3.0 | ≤ 2.0 | ≤ 1.0 | ≤ 0.7 | ≤ 0.08 | ≤ 0.04 | ≤ 0.03 | ≤ 0.015 |
Ranges summarized from reputable C-4 datasheets; confirm against current ASTM/ASME issue and PO. :contentReference[oaicite:1]{index=1}
| Property | Metric | Imperial |
|---|---|---|
| Tensile Strength (Rm) | ~ 780–800 MPa | ~ 113–116 ksi |
| Yield Strength (0.2% Rp) | ~ 360–380 MPa | ~ 52–55 ksi |
| Elongation | ~ 50–55% | ~ 50–55% |
Representative values compiled from supplier datasheets. :contentReference[oaicite:2]{index=2}
| UNS | Werkstoff Nr. | EN (approx.) | Trade |
|---|---|---|---|
| N06455 | 2.4610 | NiMo16Cr16Ti (approx.) | HASTELLOY® C-4 |
Designation mapping as commonly published. :contentReference[oaicite:3]{index=3}
| Type | Standard | Notes |
|---|---|---|
| Seamless Pipe/Tube | ASTM B622 (UNS N06455) | Pickled & annealed • NDE per spec |
| Welded Pipe | ASTM B619 (UNS N06455) | Automatic weld; Class II cold-work options |
| Welded Tube | ASTM B626 (UNS N06455) | Solution annealed; corrosion-service welding practices |
Standards explicitly list N06455 among covered grades. :contentReference[oaicite:4]{index=4}
| Product | Standard | Size / Schedule | Notes |
|---|---|---|---|
| Elbows • Tees • Reducers • Caps • Stub Ends • Bends | ASTM B366 (Grade WPHC4) | ½″–48″ • SCH 10S–XXS | ASME B16.9 dims • EN 10204 3.1/3.2 |
Factory-made wrought nickel alloy fittings per B366. :contentReference[oaicite:5]{index=5}
| Product | Material / Dimensional | Classes | Notes |
|---|---|---|---|
| Socket-Weld & Threaded Fittings | ASTM B564 (material) • ASME B16.11 (dimensional) | 3000# / 6000# / 9000# | NDE & documentation per PO |
| Branch Outlets (Weldolet/Threadolet/Sockolet) | MSS SP-97 + ASTM B564 (material) | — | SW / Threaded / Welded |
| Type | Standard | Rating | Notes |
|---|---|---|---|
| WNRF • SORF • BLRF • Lap-Joint • THRF • SWRF • Orifice • Spectacle Blinds | ASME B16.5 / B16.47 (dimensional) + ASTM B564 (material) | 150# – 2500# | Heat traceable; PMI |
C-4 flanges commonly furnished to ASTM B564. :contentReference[oaicite:6]{index=6}
| Item | Material / Standard | Threads | Notes |
|---|---|---|---|
| Hex & Heavy Hex Bolts • Cap/Socket Screws | ASTM B574 (bar/rod/wire feedstock) | ASME B1.1 (UN/UNJ), B1.13M (M), B1.21M (MJ) | Passivation/coatings per spec |
| Stud Bolts (full / double-end) | ASTM B574 | UN/UNJ/MJ | Thread gauging certs per PO |
| Nuts & Washers | Material to N06455; dims per ASME B18 / ISO | — | Locking types on request |
ASTM B574 explicitly lists UNS N06455 among covered Ni-Cr-Mo alloys. :contentReference[oaicite:7]{index=7}
| Component | Material / Standard | Dimensional/Pressure | Notes |
|---|---|---|---|
| Bodies • Bonnets • Discs • Seats • Stems | ASTM B564 forgings / B575 plate | ASME B16.34 / API per PO | Optimized for HCl/H2SO4 service; weld-friendly HAZ stability |
| Springs & Hardware | B575 strip • B574 wire (N06455) | — | High-temp stability; low relaxation |
| Product | Standard | Range (typ.) |
|---|---|---|
| Sheets / Plates / Strips | ASTM B575 | 0.5 – 50 mm • up to 1500–2000 mm width |
| Rods / Bars / Forged Bars | ASTM B574 | Ø 8 – 200 mm |
| Wire | ASTM B574 | Ø 0.5 – 8 mm |
Average rating: 4.9/5 from 19 verified project reviews.
Chemical Reactor OEM —
C-4 plates & flanges handled chloride service well; HAZ corrosion not observed post-shutdown inspection.
Process Integrator —
Test certificates and PMI were complete; tubes met flattening/hydro test requirements.
Send your RFQ / BOQ / drawings and we’ll respond quickly with pricing, lead time, and MTC details.
We export to 190+ countries.
Algeria,
Angola,
Benin,
Botswana,
Burkina Faso,
Burundi,
Cabo Verde,
Cameroon,
Central African Republic,
Chad,
Comoros,
Congo (Republic),
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Djibouti,
Egypt,
Equatorial Guinea,
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