ASTM B705
Welded nickel-alloy (625, 825) pipe
Covers welded nickel-alloy pipe in alloys including 625 (N06625) and 825 (N08825), in several classes that define cold work and heat treatment.
- Pipe & tube
- ASME SB-705
- 2 grades in stock range
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What to know before ordering to ASTM B705
The points that decide whether material to ASTM B705 is accepted at inspection.
- Classes differ in cold-work and examination requirements; state the class on the order.
- Welded pipe is the economical choice in larger sizes and thinner walls.
- For seamless pipe order B423 (825) or B444 (625).
Grades and products we supply to ASTM B705
| Grade | Product | Designation on the certificate |
|---|---|---|
| Inconel 825 | Pipe & Tube | ASTM B705 |
| Inconel 625 | Pipe & Tube | ASTM B705 |
How ASTM B705 fits into an order
A purchase order line is only complete when it names the material standard, the dimensional standard and the inspection document. Miss one and the mill, the inspector and the buyer can each read the order differently.
Related standards
ASTM B705 — questions buyers ask
What does ASTM B705 cover?
Covers welded nickel-alloy pipe in alloys including 625 (N06625) and 825 (N08825), in several classes that define cold work and heat treatment.
Which grades do you supply to ASTM B705?
Inconel 825, Inconel 625 — see the table on this page for the exact product and designation.
What is the difference between ASTM B705 and ASME SB-705?
ASME SB-705 is the ASME Boiler and Pressure Vessel Code (Section II) adoption of ASTM B705. The technical requirements are usually identical to a specific ASTM edition; pressure-equipment codes call for the ASME designation, and most mill certificates show both.
Do you supply certificates to this standard?
Yes. Material is supplied with mill test certificates to EN 10204 3.1 showing the standard, grade and heat number; 3.2 with third-party inspection on request.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026