ASTM B705 Inconel 625 ERW Welded Pipe Information
ASTM B705 Inconel 625 ERW Welded Pipe Information
ASTM B705 specifies the use of Inconel 625 (UNS N06625) ERW (electric resistance welded) pipe, a high-strength, corrosion-resistant nickel-based superalloy well-suited for harsh environments. Its key properties include excellent resistance to a wide range of corrosion conditions, high-temperature strength up to 1,800°F (982°C), superior fatigue and corrosion resistance, and good weldability. Common applications include the aerospace, chemical, marine, and oil and gas industries.
What is the ASTM standard for Inconel 625 pipe?
Inconel 625 welded pipe is a solution-hardened high-temperature alloy suitable for high-temperature and high-pressure applications. Pipe produced to ASTM B444 UNS N06625 is typically seamless.
Specification Of Inconel Alloy 625 Erw Pipe
| Welded Pipe Standard | ASTM B705 ASME SB705 |
| Welded Pipe Dimension | ANSI/ASME B36.19M, ANSI/ASME B36.10M |
| Welded Pipe Sizes | 1 / 2" NB - 24" NB |
| Welded Pipe Outside Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24" NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
| Steel Welded Pipe Manufacturing Process | Welded / ERW / Fabricated / CDW / 100% X Ray Welded |
| Welded Pipe Shapes | Round, Rectangle, Square etc. |
| Welded Pipe Schedule | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Welded Pipe Ends | Half Hard, Soft, Hard, Quarter Hard, Spring Hard |
| Delivery Condition | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
| Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Pipes, Finish as per customer Requirements |
| Value Added Services | Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing |
Inconel 625 Welded Pipe Manufacturing Process
Electric Resistance Welding (ERW) Process
Pipes are manufactured using the electric resistance welding (ERW) process, which involves cold-forming flat steel sheets into a cylindrical shape. The steel sheets are then heated to a temperature that forces the edges of the pipe together, creating a joint without the use of filler material.
Several electric resistance welding (ERW) processes are used in pipe production. ERW is primarily categorized into two types:
. High Frequency Welding
. Rotary Contact Wheel Welding.
High Frequency Welding
In high-frequency induction welding, a work coil is placed in front of the weld point, acting as a conduit for the welding current to reach the material. The work coil does not contact the pipe. The current is induced into the pipe's interior through the magnetic field surrounding it. High-frequency induction welding avoids contact marks when changing pipe dimensions and requires less preparation time.
Rotary Contact Wheel Welding
In rotary contact wheel welding, current passes through a contact wheel at the weld point. Part of the forging pressure required for the welding process is also applied by the contact wheel. The three main types of rotary contact wheel welders are AC, DC, and square wave. Current is transmitted through three power sources via a brush assembly that interacts with slip rings mounted on the rotating shaft of the stationary contact wheel. The current is transmitted to the strip edge via these contact wheels.
Gnee Steel specializes in the production and sale of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. Gnee Steel's products are widely used in aerospace, chemical, electric power, automotive, and nuclear energy applications, and we can provide customized alloy solutions tailored to customer needs. For alloy pricing inquiries or customized alloy solutions, please contact us for a quote at ss@gneemetal.com.
