YUHONG HOLDING GROUP CO., LTD
| Payment Terms | TT, LC |
| Supply Ability | 10000 tons/month |
| Delivery Time | According to the quantity |
| Packaging Details | WOODEN CASE WITH PLASTIC CAP |
| 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 |
| Brand Name | Yuhong |
| Certification | ABS, BV, DNV, CCS, LR |
| Place of Origin | China |
View Detail Information
Explore similar products
ASME SB163 Ni200 Nickel / Nickel Alloy Steel Heat Exchanger Tube
Nickel / Nickel Alloy Steel ASTM B163 NO8825 Heat Exchanger Tube
ASME SB163 Monel 400 Nickel / Nickel Alloy Steel Heat Exchanger Tube
ASTM B622 ALLOY C22 Nickel Alloy Steel Heat Exchanger Tube For Air Cooler
Product Specification
| Payment Terms | TT, LC | Supply Ability | 10000 tons/month |
| Delivery Time | According to the quantity | Packaging Details | WOODEN CASE WITH PLASTIC CAP |
| 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 | Brand Name | Yuhong |
| Certification | ABS, BV, DNV, CCS, LR | Place of Origin | China |
| High Light | Furnance Nickel Alloy Seamless Tube ，Superheaters Seamless Tube ，Furnance Seamless Tube | ||
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:
| 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
Tensile Strength: ≥500 MPa (72.5 ksi)
Yield Strength (0.2% offset): ≥170 MPa (25 ksi)
Elongation: ≥30%
Tensile Strength: ~380 MPa (55 ksi)
Creep Rupture Strength: Excellent (e.g., 10,000 hrs at 815°C: ~20 MPa)
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.
Company Details
Business Type:
Manufacturer,Importer,Exporter,Trading Company,Seller,Other
Year Established:
1990
Total Annual:
50M-70M
Employee Number:
50~800
Ecer Certification：
Verified Supplier
Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n... Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n...
Get in touch with us
Leave a Message, we will call you back quickly!