Name: ASTM B409 Alloy 800HT (UNS N08811) Seamless Nickel Alloy Tube for High Temperature Service
Brand: Yuhong Group Co.,Ltd
SKU: ASTM B407 Alloy 800HT Seamless Pipe
Price: 100000 USD
Availability: InStock

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ASTM B409 Alloy 800HT (UNS N08811) Seamless Nickel Alloy Tube for High Temperature Service

Product Details:

Place of Origin:	CHINA
Brand Name:	YUHONG
Certification:	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number:	ASTM B407 Alloy 800HT Seamless Pipe

Payment & Shipping Terms:

Minimum Order Quantity:	500 KGS
Price:	Negotiable
Packaging Details:	Wooden Cases
Delivery Time:	10 DAYS
Payment Terms:	T/T,L/C
Supply Ability:	Depends On Quantity

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Detailed Product Description

Item:	Specification	Standard:	ASTM B409 / ASME SB409, Compliant With UNS N08811
Grade:	Alloy 800HT (UNS N08811), Nickel-Iron-Chromium Alloy	Type:	Seamless Tube (SMLS), Industrial Grade, High-Temperature Service
Surface:	Annealed & Pickled (A/P), Smooth & Rust-Free, Ra ≤ 1.6μm; 2B/BA Optional	OD (Outside Diameter):	1/8” – 24” (3.18mm – 610mm); Common: 6mm-159mm; Tolerance: ±0.13mm (≤25.4mm)
WT (Wall Thickness):	SCH 5S – SCH 160, XXS (1.0mm – 20mm); Common: 1.65-5.0mm; Tolerance: ±10% Of Nominal	Length:	6m, 12m, Random Length; Cut-to-Length Available (Tolerance ±5mm)
Ends:	Plain End (PE), Beveled End (BE, 37°), Deburred; Custom End Treatment Optional
Highlight:	ASTM B409 nickel alloy tube , UNS N08811 seamless tube , high temperature nickel alloy tube

ASTM B409 Alloy 800HT (UNS N08811) Seamless Nickel Alloy Tube for High Temperature Service

Product Description

ASTM B409 Alloy 800HT is a nickel‑iron‑chromium alloy with controlled carbon, aluminum, and titanium for elevated‑temperature strength. It offers excellent creep‑rupture strength, oxidation resistance, and carburization resistance up to 1100°C. Widely used in furnace components, heat exchangers, petrochemical processing, and high‑temperature piping systems.

Chemical Composition (wt%)

Alloy Grade	Ni (Nickel)	Fe (Iron)	Cr (Chromium)	C (Carbon)	Al (Aluminum)	Ti (Titanium)	Mn (Manganese)	Si (Silicon)	P (Phosphorus)	S (Sulfur)
Alloy 800HT (UNS N08811)	30.0-35.0	Bal.	19.0-23.0	0.06-0.10	0.20-0.60	0.60-1.00	≤1.50	≤1.00	≤0.030	≤0.015

Typical Mechanical Properties

Mechanical Property	Standard Requirement (ASTM B409)	Typical Value
Yield Strength (Rp0.2), MPa	≥275	290-350
Tensile Strength (Rm), MPa	≥550	580-650
Elongation (A), %	≥30	35-45
Hardness (HB), Brinell	≤200	160-190
Creep-Rupture Strength (1000°C/1000h), MPa	≥10	12-15

Available Tests

Test Type	Standard
Eddy Current Test (ECT)	ASTM B409
Hydrostatic Pressure Test	ASTM B409
Tensile & Creep-Rupture Test	ASTM E8/E8M, ASTM E139
Chemical Composition Test (PMI)	Spectrometer
Oxidation & Corrosion Test	ASTM G48, ASTM G110
Hardness Test	ASTM E10

Core Product Advantages

Superior High-Temperature Performance: Operates stably up to 1100°C, with excellent creep-rupture strength and high-temperature stability, no deformation under long-term high-temperature stress.
Excellent Oxidation & Carburization Resistance: Stable in cyclic heating and harsh industrial atmospheres, not easy to oxidize or decarburize, extending service life.
Reliable Corrosion Resistance: Resistant to many aqueous environments, high-temperature gases and medium corrosion, adapting to petrochemical and high-temperature harsh scenarios.
Stable Microstructure: Controlled Al+Ti composition and solution annealing treatment ensure uniform microstructure, good toughness and fatigue resistance.
Strict Quality Compliance: Fully complies with ASTM B409/ASME SB409 standard, MTC (EN 10204 3.1) available, full traceability, reliable for critical applications.
Precise Dimensions & Easy Assembly: Seamless process, precise OD/WT tolerance, good interchangeability, easy to weld and assemble with other components.

Packaging & Delivery

Packaging Standard: Seaworthy export packaging (wooden case, steel frame), each tube wrapped with anti-rust paper/plastic film, moisture-proof, anti-collision and anti-rust.
Marking: Each package is marked with product information (standard, grade, OD, WT, length, batch number) and export marks for easy traceability and customs clearance.
Delivery Time: 10-15 days for stock specifications; 25-35 days for customized specifications.
Trade Terms: Support FOB, CIF, EXW and other trade terms, cooperate with professional international logistics to ensure timely delivery.

Application Scope

Industry Field	Typical Applications
Petrochemical	Cracking furnace tubes, reformer tubes, high-temp reaction pipelines
Power Generation	Boiler superheater/reheater tubes, nuclear power auxiliary pipelines
Heat Exchange	Heat exchanger tubing bundles, condenser/evaporator tubes
Metallurgy	Heat treatment furnace tubes, smelting equipment pipelines
Other	Furnace components, high-temp steam/flue gas pipelines