TOBO STEEL GROUP CHINA
| Melting Point | 1350 - 1400°C |
| Outer Diameter | 6-813mm |
| Delivery Time | 15-30 Workdays |
| Product Type | Flange, Disc, Foring, Shaft Sleeves |
| Sch | 40 |
| Supply Ability | 10 Ton/Month |
| Product Name | Nickel Based Alloy Pipe Inconel 718 High Strength Corrosion Resistant ASME SB444 for Aerospace |
| Ends | Bevled End, Plain End, Thread End |
| Density | 8.9 g/cm³ |
| Payment Terms | T/T, Western Union |
| Molybdenum Content | 2.5-3.5 |
| Temperatureresistance | Up to 1100°C |
| Quality | good quality |
| Diameter | 10mm - 500mm |
| Inner Diameter | Customized |
| Process Method | Cold Drawn/ Cold Rolled |
| Color | Sliver or as request |
| Specification | ASTM B165, ASME SB165 |
| Packaging Details | Standard Shipping Package |
| Description | N06601/6023 Nickel Alloy Pipe Tubes |
| Model Number | Nickel Alloy Pipe |
| Certification | ISO/TUV/SGS |
| Place of Origin | Shanghai,China |
| Brand Name | TOBO |
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Product Specification
| Melting Point | 1350 - 1400°C | Outer Diameter | 6-813mm |
| Delivery Time | 15-30 Workdays | Product Type | Flange, Disc, Foring, Shaft Sleeves |
| Sch | 40 | Supply Ability | 10 Ton/Month |
| Product Name | Nickel Based Alloy Pipe Inconel 718 High Strength Corrosion Resistant ASME SB444 for Aerospace | Ends | Bevled End, Plain End, Thread End |
| Density | 8.9 g/cm³ | Payment Terms | T/T, Western Union |
| Molybdenum Content | 2.5-3.5 | Temperatureresistance | Up to 1100°C |
| Quality | good quality | Diameter | 10mm - 500mm |
| Inner Diameter | Customized | Process Method | Cold Drawn/ Cold Rolled |
| Color | Sliver or as request | Specification | ASTM B165, ASME SB165 |
| Packaging Details | Standard Shipping Package | Description | N06601/6023 Nickel Alloy Pipe Tubes |
| Model Number | Nickel Alloy Pipe | Certification | ISO/TUV/SGS |
| Place of Origin | Shanghai,China | Brand Name | TOBO |
| High Light | Nickel alloy pipe Inconel 718 ，High strength corrosion resistant pipe ，ASME SB444 aerospace pipe | ||
Nickel Based Alloy Pipe Inconel 718 High Strength Corrosion Resistant ASME SB444 for Aerospace
1. Product Description
Nickel alloy pipe is a special alloy tubular product with nickel as the matrix, alloyed with molybdenum, chromium, cobalt, aluminum, iron, etc., available in seamless and welded configurations. The manufacturing process employs a duplex route of vacuum induction melting plus electroslag remelting to ensure cleanliness and compositional uniformity, followed by hot extrusion, multi-pass cold rolling and cold drawing, combined with intermediate bright annealing, to finally obtain dimensionally accurate tubes with superior surface quality. Representative grades include Hastelloy B-3 (Ni-Mo series, offering exceptional resistance to strong reducing acids such as hydrochloric and sulfuric acids) and Inconel 617 (Ni-Cr-Co-Mo series, combining high-temperature strength and oxidation resistance). Products are supplied in solution-treated, stress-relieved, or cold-worked conditions, with tube ends beveled or plain, and surfaces pickled, bright-annealed, or centerless ground to suit different joining methods including welding, expanding, or threading. Each tube undergoes grain size assessment and corrosion testing to verify its suitability for severe service conditions.
2. Product Applications
Fine chemicals : Hydrochloric acid regeneration towers, acetic acid cracking furnace tubes, pharmaceutical intermediate synthesis reactors, and distillation systems (B-3).
Aerospace propulsion: Gas turbine combustor transition sections, turbine casing cooling tubes, and tailpipe high-temperature liners (617).
Petrochemical units: Butadiene extraction towers, styrene condenser tube bundles, and overhead lines in crude atmospheric/vacuum distillation units processing sour crude.
Nuclear reactor systems: Intermediate heat exchanger tubes in high-temperature gas-cooled reactors (HTGR), and liquid metal cooling circuit piping.
Heat treatment & metal processing: Radiant tubes in continuous annealing lines, electrode protection tubes in salt bath furnaces, and laminar cooling system piping in rolling mills.
Waste incineration & biomass power: High-temperature superheater tubes, water wall tubes, and flue gas reheater tube bundles.
Electrochemistry & battery manufacturing: Sintering furnace tubes for lithium battery cathode materials, and anolyte circulation lines in electrolytic cells.
3. Product Advantages
Excellent corrosion resistance in strong reducing acids: B-3 exhibits extremely low uniform corrosion rates in hydrochloric, sulfuric, and formic acids, with good immunity to pitting and crevice attack, making it one of the few viable metallic materials in such environments.
Ultra-high temperature creep strength and rupture life: 617 maintains high tensile strength and creep rupture life in the range of 800~1100℃, outperforming most superalloys and suitable for prolonged thermal exposure.
Resistance to thermal fatigue and thermal shock: Both alloys possess excellent thermal cycling stability, resisting cracking under frequent start-stop or severe temperature fluctuation conditions.
Fabrication flexibility: Can be formed by conventional welding, bending, and machining without requiring post-weld heat treatment, simplifying equipment manufacturing processes.
Resistance to chloride and fluoride attack: High resistance to halide-induced stress corrosion cracking, suitable for chlorine/fluorine-bearing acidic process streams.
4.Key Technical Parameters
| Item | Typical Value / Range |
| Common Grades | Hastelloy B-3 (UNS N10675), Inconel 617 (UNS N06617) |
| Chemical Composition (B-3) | Ni balance, Mo 27~32%, Cr 1.0~3.0%, Fe 1.0~3.0%, Co ≤3.0%, C ≤0.01%, Mn ≤3.0%, W ≤3.0%, Al ≤0.50%, Ti ≤0.20%, S ≤0.030% |
| Chemical Composition (617) | Ni balance, Cr 20~24%, Co 10~15%, Mo 8~10%, Fe ≤3.0%, C 0.05~0.15%, Mn ≤1.0%, Si ≤1.0%, Al 0.8~1.5%, Ti ≤0.6%, S ≤0.015% |
| Mechanical Properties at RT (B-3) | Tensile ≥758 MPa, Yield ≥310 MPa, Elongation ≥25%, Hardness HRB≤100 |
| Mechanical Properties at RT (617) | Tensile ≥690 MPa, Yield ≥310 MPa, Elongation ≥35%, Hardness HB≤220 |
| High-temp Properties (617) | Tensile at 800℃ ≥440 MPa, at 1000℃ ≥270 MPa (reference values) |
| Physical Properties (B-3) | Density 9.2 g/cm³, Melting range 1370~1418℃, Conductivity 10.9 W/(m·K) (20℃), CTE 10.6×10⁻⁶/℃ (20-100℃) |
| Physical Properties (617) | Density 8.36 g/cm³, Melting range 1330~1380℃, Conductivity 13.4 W/(m·K) (20℃), CTE 11.6×10⁻⁶/℃ (20-100℃) |
| Size Range (Seamless) | O.D. φ6~φ610 mm, W.T. 0.5~50 mm |
| Size Range (Welded) | O.D. φ10~φ2500 mm, W.T. 1~60 mm |
| Dimensional Tolerances | O.D. ±0.5% (min. ±0.10 mm), W.T. ±12.5% (min. ±0.10 mm), Straightness ≤1.5 mm/m |
| Surface Roughness | Bright annealed Ra≤0.4 μm, Pickled Ra≤3.2 μm, Ground Ra≤0.8 μm |
| Heat Treatment Condition | B-3: Solution annealed 1065~1095℃ rapid cooling; 617: Solution annealed 1100~1175℃ water quench |
| Non-destructive Testing | Ultrasonic (ASTM E213) or Eddy current (ASTM E309), hydrostatic test on each tube |
| Applicable Standards | Seamless: ASTM B622 (B-3), ASTM B546 (617); Welded: ASTM B619/B751; ASME SB-622/SB-546; EN 10216-5; GB/T 15007; NB/T 47019 |
FAQ
1. Are you trading company or manufacturer ? We are manufacturer ,You can see the certification.
2.How long is your delivery time? Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
3. Do you provide samples ? is it free or extra ? Yes, we could offer the sample for free charge but need pay the cost of freight.
4. What is your terms of payment ? Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
Company Details
Business Type:
Manufacturer,Agent,Importer,Exporter,Trading Company,Seller
Year Established:
1998
Total Annual:
100000-100000000
Employee Number:
200~300
Ecer Certification：
Verified Supplier
TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ... TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ...
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