Technical Regulations and Scope of ASTM B751
This specification establishes uniform requirements for the production and quality control of straight-seam welded pipes made from nickel and high-nickel alloys. The provisions of the document, with the exception of sections 6 and 7, are mandatory for compliance when manufacturing products that meet the ASTM standards specified below.
| Product Type and Applicable Alloys (UNS) | ASTM Standard Designation |
|---|---|
| Welded pipes from alloys N08020, N08024, and N08026 | B468 |
| Welded pipes from alloys N08120, N08800, N08810, and N08811 | B515 |
| Welded pipes from nickel-chromium-iron alloys: N06600, N06603, N06025, and N06045 | B516 |
| Welded pipes from nickel and nickel-cobalt alloys | B626 |
| Welded pipes from alloys N08904, N08925, and N08926 | B674 |
| Welded pipes from alloys N08366 and N08367 | B676 |
| Welded pipes from alloys N06625, N06219, and N08825 | B704 |
| Welded pipes from Ni-Cr-Mo-Co-W-Fe-Si alloys (UNS N06333) | B726 |
| Welded pipes from pure nickel (N02200/N02201) and nickel-copper alloys (N04400) | B730 |
EV Group China specialists emphasize: the provisions of Section 6, regarding additional testing, apply strictly when specified in the purchase order or individual product specification.
In the event of a conflict between the requirements of the general ASTM B751 standard and the specific requirements for a particular alloy, the standards prescribed in the specific product specification shall take precedence.
Technical parameters in this document are provided in inch-pound units (standard). SI values are for reference only. Industrial safety and environmental control issues during pipe operation are regulated by the corresponding Material Safety Data Sheets (MSDS) provided by EV Group China for each batch of metal products.