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