Petrochemical: Ethylene furnace coils, reformer tubes, pyrolysis units.
Power Generation: Superheater tubes, heat exchangers, boiler components.
Nuclear: Steam generator tubing, heat exchangers (resists chloride stress corrosion).
Industrial Furnaces: Radiant tubes, muffles, conveyor systems.
Chemical Processing: Acid production, catalyst support grids.

Application	Primary Challenge	800H’s Advantage
Ethylene cracking	Carburization + creep	Controlled carbon + Ni/Cr matrix stability
Nuclear steam gens	SCC in chlorides	>30% Ni content prevents cracking
Reformer tubes	Hydrogen embrittlement	Stable austenitic structure
Radiant furnace tubes	Cyclic oxidation/carburizing	Al/Ti oxide layer formation

ASTM B407 N08810 Heat Exchanger Tube Strength & Mechanical Properties

Room Temperature:

Tensile Strength: ≥500 MPa (72.5 ksi)

Yield Strength (0.2% offset): ≥170 MPa (25 ksi)

Elongation: ≥30%

Elevated Temperature (650°C / 1200°F):

Tensile Strength: ~380 MPa (55 ksi)

Creep Rupture Strength: Excellent (e.g., 10,000 hrs at 815°C: ~20 MPa)

Key Strengths: Retains structural integrity under thermal cycling/stress; superior to standard stainless steels (e.g., 304/316) above 600°C.
High-Temperature Performance: Outperforms stainless steels in creep strength above 600°C.
Corrosion Resistance: Resists oxidation, carburization, and reducing sulfur atmospheres.
Fabricability: Weldable (using ENiCrFe-3 filler) and formable with standard methods.
Cost-Effective: More economical than high-nickel alloys (e.g., Inconel) for moderate temperatures.

ASTM B407 N08810 Heat Exchanger Tube FAQ

1. What distinguishes Incoloy 800H from standard Incoloy 800?

800H has a higher carbon content (0.05–0.10% vs. 0.03% max in 800) for superior creep resistance at >600°C.

It undergoes solution annealing at ≥1100°C to achieve an ASTM No. 5 or coarser grain size, optimizing high-temperature strength.

2. What temperatures can Incoloy 800H tubes handle?

Continuous Service: Up to 815°C (1500°F).

Short-Term Exposure: Up to 950°C (1740°F).

Critical Note: For >900°C, Incoloy 800HT (Ti/Al-controlled) is preferred for enhanced stability.

3. Is welding 800H tubes difficult?

Weldable via:

TIG/GTAW with ERNiCr-3 (FM 82) filler.

SMAW with ENiCrFe-3 electrodes.

Post-Weld Requirement: Solution annealing (1100–1175°C) is essential to restore corrosion/creep resistance.

B407 N08810 Incoloy 800H Nickel Alloy Steel Seamless Tube For Superheaters And Furnance 0

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Heat Exchanger Tube

B407 N08810 Incoloy 800H Nickel Alloy Steel Seamless Tube For Superheaters And Furnance

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B407 N08810 Incoloy 800H Nickel Alloy Steel Seamless Tube For Superheaters And Furnance

Brand Name:	Yuhong
MOQ:	1PC
Price:	Negotiable
Packaging Details:	WOODEN CASE WITH PLASTIC CAP
Payment Terms:	TT, LC

Detail Information

Product Description

Detail Information

Place of Origin:

China

Brand Name:

Yuhong

Certification:

ABS, BV, DNV, CCS, LR

Tube Material:

N04400, N06600, N08800, N08810, N08811, N08825

Length:

Max 34M/PC

O.D.:

6-203mm

W.T.:

0.5-25mm

Testing:

UT, ET, HT, PMI

Minimum Order Quantity:

1PC

Price:

Negotiable

Packaging Details:

WOODEN CASE WITH PLASTIC CAP

Delivery Time:

According to the quantity

Payment Terms:

TT, LC

Supply Ability:

10000 tons/month

Highlight:

Furnance Nickel Alloy Seamless Tube

Superheaters Seamless Tube

Furnance Seamless Tube

Product Description

ASTM A407 N08810 Heat Exchanger Tube Chemical Composition

UNS Designation	Ni	Cu	Iron	Mn	C	Cr	Ti	Al
N08810	0.30–0.35	0.75	39.5	1.5	0.05–0.10	19.0-23.0	0.15-0.60	0.15-0.60

ASTM B407 N08810 Heat Exchanger Tube Application

Tubes are used in extreme environments:

Petrochemical: Ethylene furnace coils, reformer tubes, pyrolysis units.
Power Generation: Superheater tubes, heat exchangers, boiler components.
Nuclear: Steam generator tubing, heat exchangers (resists chloride stress corrosion).
Industrial Furnaces: Radiant tubes, muffles, conveyor systems.
Chemical Processing: Acid production, catalyst support grids.

Application	Primary Challenge	800H’s Advantage
Ethylene cracking	Carburization + creep	Controlled carbon + Ni/Cr matrix stability
Nuclear steam gens	SCC in chlorides	>30% Ni content prevents cracking
Reformer tubes	Hydrogen embrittlement	Stable austenitic structure
Radiant furnace tubes	Cyclic oxidation/carburizing	Al/Ti oxide layer formation

ASTM B407 N08810 Heat Exchanger Tube Strength & Mechanical Properties

Room Temperature:

Tensile Strength: ≥500 MPa (72.5 ksi)

Yield Strength (0.2% offset): ≥170 MPa (25 ksi)

Elongation: ≥30%

Elevated Temperature (650°C / 1200°F):

Tensile Strength: ~380 MPa (55 ksi)

Creep Rupture Strength: Excellent (e.g., 10,000 hrs at 815°C: ~20 MPa)

Key Strengths: Retains structural integrity under thermal cycling/stress; superior to standard stainless steels (e.g., 304/316) above 600°C.
High-Temperature Performance: Outperforms stainless steels in creep strength above 600°C.
Corrosion Resistance: Resists oxidation, carburization, and reducing sulfur atmospheres.
Fabricability: Weldable (using ENiCrFe-3 filler) and formable with standard methods.
Cost-Effective: More economical than high-nickel alloys (e.g., Inconel) for moderate temperatures.

ASTM B407 N08810 Heat Exchanger Tube FAQ

1. What distinguishes Incoloy 800H from standard Incoloy 800?

800H has a higher carbon content (0.05–0.10% vs. 0.03% max in 800) for superior creep resistance at >600°C.

It undergoes solution annealing at ≥1100°C to achieve an ASTM No. 5 or coarser grain size, optimizing high-temperature strength.

2. What temperatures can Incoloy 800H tubes handle?

Continuous Service: Up to 815°C (1500°F).

Short-Term Exposure: Up to 950°C (1740°F).

Critical Note: For >900°C, Incoloy 800HT (Ti/Al-controlled) is preferred for enhanced stability.

3. Is welding 800H tubes difficult?

Weldable via:

TIG/GTAW with ERNiCr-3 (FM 82) filler.

SMAW with ENiCrFe-3 electrodes.

Post-Weld Requirement: Solution annealing (1100–1175°C) is essential to restore corrosion/creep resistance.

B407 N08810 Incoloy 800H Nickel Alloy Steel Seamless Tube For Superheaters And Furnance 0

Tags:

Studded Tube

Solid Fin Tube

Serrated Finned tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube

Copper Alloy Steel Heat Exchanger Tube

Titanium Alloy Steel Heat Exchanger Tube

Alloy Steel Heat Exchanger Tube

U Bend Heat Exchanger Tube

Carbon Steel Heat Exchanger Tubes

Boiler Tube

Nickel Alloy Steel Boiler Tube

Stainless Steel Boiler Tube

Duplex Stainless Steel Boiler Tube

Alloy Steel Boiler Tube

Carbon Steel Boiler Tube

Fired Heater Parts

Baffle Plate

Tubesheet

Studded Tube

Solid Fin Tube

Serrated Finned tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube

Copper Alloy Steel Heat Exchanger Tube

Titanium Alloy Steel Heat Exchanger Tube

Alloy Steel Heat Exchanger Tube

U Bend Heat Exchanger Tube

Carbon Steel Heat Exchanger Tubes

Boiler Tube

Nickel Alloy Steel Boiler Tube

Stainless Steel Boiler Tube

Duplex Stainless Steel Boiler Tube

Alloy Steel Boiler Tube

Carbon Steel Boiler Tube

Fired Heater Parts

Baffle Plate

Tubesheet

products details

Studded Tube

Solid Fin Tube

Serrated Finned tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube