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Help CenterASTM B444 Seamless Inconel 625 Pipe High Temp UNS N06625 Tube Corrosion Resistant Nickel Based Alloy
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ASTM B444 Inconel 625 seamless pipe is a high-performance nickel-based alloy tube manufactured for demanding high-temperature and corrosion-resistant applications. Made from UNS N06625 alloy, it offers outstanding resistance to pitting, crevice corrosion, seawater corrosion, and oxidation. The seamless construction improves pressure resistance and structural reliability, making it suitable for chemical processing, marine engineering, aerospace, power generation, and oil & gas industries. This alloy pipe also provides excellent weldability and long service life under extreme operating conditions.
Parameter |
Specification / Range |
Remarks |
Manufacturing Standards |
• Pipes & Tubes: ASTM B622, B167, B444, B165, B619, B517 • Plates & Sheets: ASTM B575, B168, B443, B127, ASME SB575 • Coils & Strips: ASTM B575, B168, B443, B127, EN 10095 • Bars & Rods: ASTM B166, B472, B408, B164, ASME SB166 |
DIN, EN, ISO, and JIS standards are fully available upon technical request. |
Core Grades Available |
• Hastelloy Series: C-276, C-22, B-2, B-3, G-30 • Inconel Series: 600, 625, 718, X-750, 601 • Incoloy Series: 800, 800H, 800HT, 825, 925 • Monel Series: 400, K-500 • Pure Nickel: Nickel 200, Nickel 201 |
All materials are sourced from premium VOD/AOD vacuum induction melting heats. |
Pipe & Tube Dimensions |
• Seamless OD: 6.0 mm – 219.1 mm • Welded OD: 12.7 mm – 1219.0 mm • Wall Thickness (WT): 0.5 mm – 20.0 mm (Sch 5S to Sch XXS) |
Custom large-diameter instrumentation tubing and heavy-wall process piping engineered on request. |
Plate & Sheet Dimensions |
• Cold Rolled (Sheet): 0.3 mm – 4.75 mm • Hot Rolled (Plate): 4.76 mm – 100.0 mm • Standard Widths: 1000mm, 1219mm, 1500mm, 2000mm |
Provides customized profile cutting (discs, rings, blocks) via precision laser or waterjet CNC systems. |
Coil & Strip Dimensions |
• Thickness Range: 0.05 mm – 3.0 mm (Precision foil to gauge strip) • Width Range: 5.0 mm – 1250 mm (Micro-slitting capabilities) • Coil ID: 300mm, 400mm, 508mm, 610mm |
Ultra-precise thickness tolerances held up to ±0.005 mm for critical applications. |
Bar & Rod Dimensions |
• Round Bar Diameter: 5.0 mm – 500.0 mm • Hexagonal / Square Bar: 8.0 mm – 120.0 mm • Forged Shafts: Up to 800.0 mm (Custom forging) |
Straightness and ovality strictly controlled; centerless grinding available for precision machining stock. |
Length |
Standard lengths: 3000mm, 5800mm, 6000mm, 11800mm, 12000mm. Custom exact-cut lengths available for all product forms. |
Length optimization tailored to maximize 20ft/40ft container payload efficiency. |
Delivery Condition / Temper |
• Solution Annealed & Pickled (SRAP) • Bright Annealed (BA) • Precipitation Hardened / Age Hardened (for 718, X-750, K-500) • Cold Worked Hard Tempers (1/4 Hard, 1/2 Hard, Full Hard for Strips) |
Hardened tempers are ideal for high-elasticity diaphragms, springs, and high-strength fasteners. |
Surface Finishes |
No.1 (HR), 2B (CR), BA (Bright), Acid Pickled Industrial, Centerless Ground, Polished (Grit 180, 240, 320, 400). |
Surface protection available with customized PE/PVC laser-film coating upon request. |
Quality Assurance & Testing |
100% Positive Material Identification (PMI), Tensile/Yield Strength & Elongation Tests, Hardness Testing (HRB/HRC/HV), Intergranular Corrosion (IGC) Test, Eddy Current, Hydrostatic Testing, Ultrasonic Testing (UT), Flattening/Flaring Tests. |
Full Material Test Report (MTR) issued in strict accordance with EN 10204 3.1 certification. |
Export Packaging |
Plastic dust end caps for pipes, heavy-duty bundling, waterproof synthetic wrapping, secure ISPM-15 compliant sea-freight fumigated wooden boxes, or heavy steel-banded pallets. |
Preservation incorporates anti-corrosion desiccant packs inside vacuum-sealed barriers for long transit. |
Q1：Do you offer sample orders？
A：Yes, samples are available for quality evaluation. Sample cost is charged but refundable upon bulk order.
Q2：What is your MOQ？
A：Our standard MOQ is 100 kg per specification. For common grades and standard sizes, we accept small batch orders. Mixed orders for different products are also welcome.
Q3：Can you provide custom sizes？
A：Yes, we can produce any length, width, thickness, or diameter based on your drawings. Cutting, slitting, and other processing services are available with tolerance as required.
Q4：What certifications do you provide？
A：Each shipment comes with EN 10204 3.1 mill test certificate (MTC). Third-party inspection reports (SGS/BV/TÜV) can be arranged upon request.
Q5：What is your lead time？
A：7–15 working days for stock items. 20–30 days for custom orders, depending on quantity and specification.
Q6：What surface treatments are available？
A：Various surface treatments are available upon request, including pickled, polished, coated, oiled, or as required.
Q7：What payment terms do you accept？
A：T/T (30% deposit + 70% against BL copy), L/C at sight, Western Union, etc.
Q8：What about packaging for export？
A：Standard seaworthy packaging with waterproof protection, steel straps, corner protectors, and ISPM 15 fumigation certification. Custom packaging is available as required
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ASTM B444 Seamless Inconel 625 Pipe High Temp UNS N06625 Tube Corrosion Resistant Nickel Based AlloyUS$ 28.5 - 66.8MOQ: 100 Kilograms
