Name: ASTM B407 UNS N08810 Seamless Tube for High-Temperature Heat Exchangers and Pressure Vessels
Brand: Yuhong Group Co.,Ltd
SKU: ASTM B407 UNS N08810 Seamless Tube
Price: 100000 USD
Availability: InStock

Yuhong Holding Group Co.,LTD

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ASTM B407 UNS N08810 Seamless Tube for High-Temperature Heat Exchangers and Pressure Vessels

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 UNS N08810 Seamless Tube

Payment & Shipping Terms:

Minimum Order Quantity:	500KGS
Price:	Negotiable
Packaging Details:	Ply-wooden Case /Iron Case
Delivery Time:	Depends on quantity
Payment Terms:	T/T,L/C
Supply Ability:	800 Tons/ Month

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Detailed Product Description

Highlight:

ASTM B407 nickel alloy tube

UNS N08810 seamless tube

high-temperature heat exchanger tube

ASTM B407 UNS N08810 Seamless Tube for High-Temperature Heat Exchangers and Pressure Vessels

Yuhong Group Co., Ltd. supplies engineered heat-transfer equipment and components. Our scope covers heat exchangers, pressure vessels, air coolers, tube bundles, U-tubes, heat exchanger tubes, finned tubes, tube sheets, baffles, and heads. For high-temperature tubing, ASTM B407 UNS N08810 seamless tube is selected when creep and rupture resistance are required above 1100°F (593°C).

ASTM B407 UNS N08810 Tube: Scope and Material Behavior

ASTM B407 covers cold-worked and hot-finished annealed seamless pipe and tube. UNS N08810 is normally employed above 1100°F (593°C), where resistance to creep and rupture is required. The alloy is annealed to develop controlled grain size for optimum properties in this temperature range. This makes the tube suitable for heat exchangers, pressure vessels, and air coolers that operate under thermal load.

Chemical Composition Limits

Element	Limit, %
Nickel, Ni	30.0 min
Chromium, Cr	19.0-23.0
Iron, Fe	balance
Carbon, C	0.05-0.10
Aluminum, Al	0.15 min
Titanium, Ti	0.60 max
Sulfur, S	0.015 max
Manganese, Mn	1.5 max
Silicon, Si	1.0 max

Exact product analysis and tolerances are confirmed on the mill certificate.

Mechanical Properties and Heat Treatment

Condition	Tensile Strength, min	Yield Strength, 0.2% offset, min	Elongation, min
Hot-finished annealed or cold-worked annealed	65,000 psi (450 MPa)	25,000 psi (170 MPa)	30% in 2 in. or 50 mm (or 4D)

Final heat treatment for UNS N08810 is 2050°F (1121°C) minimum. Annealed UNS N08810 shall conform to an average grain size of ASTM No. 5 or coarser. These are not cosmetic requirements; they directly support high-temperature creep and rupture performance.

Manufacturing, Testing, and Dimensional Control

Item	Requirement
Hydrostatic or nondestructive electric test	Each pipe or tube; manufacturer option unless specified
Chemical analysis	One test per lot
Mechanical properties	One test per lot
Grain size	One test per lot
Length	Cut-to-length not less than specified; +1/8 in. (3.2 mm) cold-worked; +3/16 in. (4.8 mm) hot-finished; +1/4 in. (6.4 mm) over 30 ft
Straightness	Hot-finished camber ≤0.01 in/ft (0.8 mm/m) for ≤5 in. OD; ≤0.015 in/ft (1.4 mm/m) over 5 in. OD
Dimensions	Per ASTM B407 Table 3 for OD, ID, and wall

Manufacturing attention should focus on final annealing, grain size control, and lot-level traceability. Do not substitute chemistry or temper without engineering review.

Fabrication Support and Custom Services

Yuhong Group can supply UNS N08810 tubes with U-bending, finning, cut-to-length, end preparation, and bundle assembly. We also provide matching tube sheets, baffles, heads, and finned tubes for heat exchangers, pressure vessels, and air coolers. If material traceability is required, state lot-level chemical, mechanical, grain size, and hydro/NDE records at inquiry.

Applications

Typical uses include high-temperature heat exchangers, pressure vessels, air coolers, reformer and furnace tubing, and replacement tube bundles. UNS N08810 is selected when service is above 1100°F (593°C) and creep/rupture resistance is required.

FAQ for Buyers

Q: Is UNS N08810 suitable above 1100 °F?

A: Yes. ASTM B407 notes it is normally employed above 1100°F (593°C) where creep and rupture resistance are required.

Q: Why is grain size specified?

A: The alloy is annealed to develop controlled grain size for optimum properties in this temperature range. ASTM B407 requires average grain size ASTM No. 5 or coarser for annealed UNS N08810.

Q: What tests are routine?

A: Hydrostatic or nondestructive electric test on each tube; chemical, mechanical, and grain size tests per lot.