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China Incoloy 800HT Manufacturer: Stock Plate, Pipe, Bar & Custom Machining

13:51:13 06/17/2026

Shanghai COCESS Special Alloys Co., Ltd. (Shanghai Kesaishi Special Alloy) keeps ready inventory of Incoloy 800HT (UNS N08811 / W.Nr. 1.4959 / X8NiCrAlTi32-21)​ in plate, round bar, forged block, and seamless pipe — all solution-annealed per ASTM requirements, fully traceable with EN 10204 3.1 MTC stating C ≥ 0.06%, Al+Ti ≥ 0.85%, ASTM grain size ≥ 5, and soak temperature ≥ 1149°C. We support cut-to-size, beveling, CNC/waterjet profiling, UT/PMI, and third-party inspection (SGS / TÜV / BV / DNV) for ethylene cracker radiant tubes, SMR catalyst tubes, high-temp furnace components, and creep-critical pressure equipment worldwide.

Incoloy 800HT (UNS N08811) Plate & Sheet — On-Hand Sizes

All plates are solution-annealed and pickled (No.1 finish for HR plate; 2B or BA available for CR sheet).

Item

Available Range (Typical Stock)

Standard

Cold Rolled Sheet

Thk 0.5 – 6.0 mm; W 1000/1219 mm; L 2000/2440 mm

ASTM B409 / SB409

Hot Rolled Plate

Thk 6.0 – 50 mm (up to 80 mm on request); W 1000–2000 mm; L 2000–6000 mm

ASTM B409 / SB409

Surface / Condition

Solution Annealed + Pickled (AP); 2B / BA for thin sheet; sandblast or polish on request

Cut-to-length, CNC plasma/laser/waterjet contour cutting, hole drilling, and edge chamfering available in-house.

Incoloy 800HT Round Bars & Forged Rods — Stock Diameters

Hot-rolled and forged rounds are stocked in black or turned/bright condition. Larger forged diameters and stepped shafts can be produced to order.

Item

Available Range

Note

Hot Rolled Round Bar

Dia Φ8 – Φ200 mm (common: Φ10/16/20/25/30/40/50/60/80/100/120/150/200 mm)

ASTM B408 / SB408

Forged Round / Block

Dia Φ200 – Φ350 mm (larger by custom forging; square/rect. blocks available)

ASTM B564 forgings (N08811)

Length

2000–6000 mm random or cut to length

Finish

Black hot-rolled, turned & polished (h9/h11), or ground on request

UT per ASTM A388 / EN 10228-3 available (usually Grade II)

Bars are suitable for furnace hangers, pins, valve stems, and machined components in carburizing / high-temp service.

Incoloy 800HT Seamless Pipes & Tubes — Ready Inventory

Seamless pipes are solution-annealed and pickled, with plain or beveled ends. Heat exchanger tubes conform to ASTM B163; process piping to ASTM B407.

Item

Available Range

Standard

Seamless Pipe / Tube

OD: Φ6 – Φ219 mm (stocked: 1/4"–8", e.g. Φ10/19/25/32/38/45/57/76/89/108/114/133/159/168/219 mm)

ASTM B407 / B163

Wall Thickness

1.0 – 12 mm (SCH 5S / 10S / 40S / 80S equivalents; heavier wall by order)

ASME SB407

Length

3000–6000 mm random; cut-to-length or U-bent (heat exchanger) on request

End Finish

Plain End (PE) or Beveled End (BE); cap protected

Eddy current test (ET per ASTM E426) and hydrostatic test (HT) reports available on request.

Dual Certification, Value-Added Services & Quality Docs

  • Dual Certified Material:​ Many heats are dual-certified to N08810 (800H) + N08811 (800HT)​ — meeting C ≥ 0.05%, Al+Ti ≥ 0.85%, coarse grain ≥ ASTM 5, high-temp anneal ≥ 1149°C — suitable for both 800H and 800HT project specs.

  • Machining & Prep:​ CNC/waterjet plate cutting, bar sawing to length, pipe end beveling (30°/37.5°), U-bending for heat exchangers, inner/outer polishing (Ra ≤ 0.8 μm).

  • Inspection & NDT:​ 100% PMI (XRF/OES); UT on bars/forgings (ASTM A388 Class A/B); ET or hydrostatic on tubes; intergranular corrosion test (ASTM G28 Method A) available.

  • Certification:​ EN 10204 3.1 MTC with full chemistry & mechanical values, heat treat record, grain size; EN 10204 3.2 or third-party inspection arranged per project spec.

  • Packaging:​ Export seaworthy — VCI interleaved plates on wooden pallets; bundled bars/pipes with end caps + hexagonal steel strapping; plywood crates for small lots / air freight.

Why Source Incoloy 800HT from Shanghai COCESS?

  • Local Stock Advantage:​ Incoloy 800HT plate, bar, and seamless pipe kept in Shanghai warehouse — same-day quote, fast release for urgent shutdowns / EPC spares.

  • Full Traceability:​ Every piece tied to a unique heat number; MTC issued before dispatch, PMI cross-check on request.

  • Technical Support:​ Our metallurgy team assists with grade selection (800 vs. 800H vs. 800HT), reviews drawings to optimize cut layouts, and advises on welding consumables (ERNiCr-3).

  • Flexible Ordering:​ From single plate cut-to-size or one-length trial to container-load project shipments and annual frame agreements.

  • Global Shipping:​ Experienced in export documentation, Incoterms (EXW / FOB / CIF / DDP), and project packing requirements.


Request Current Incoloy 800HT Stock List & Formal Quotation

Please advise: Alloy Grade + Form (Plate / Bar / Pipe) + Dimensions (Thk or Dia or OD×WT) + Qty + Any NDT / MTC Requirement (3.1 or 3.2, UT, ET, etc.).

Shanghai COCESS Special Alloys Co., Ltd.

Email :sales@cocessalloys.com

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