ASTM B575
Low-carbon Ni-Mo-Cr alloy (C276, C22) plate, sheet and strip
Covers low-carbon nickel-molybdenum-chromium alloy plate, sheet and strip, including Hastelloy C276 (N10276), C22 (N06022) and C-4.
- Plate, sheet & strip
- ASME SB-575
- 2 grades supplied to it
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is ASTM B575?
ASTM B575 is the specification for low-carbon Ni-Mo-Cr and Ni-Cr-Mo alloy plate, sheet and strip, including Hastelloy C276 (UNS N10276), C22 (N06022), C4 (N06455) and Alloy 59 (N06059). These alloys resist strong reducing and oxidising acids, chlorides and wet chlorine. General requirements are in ASTM B906. ASME adopts it as SB-575.
ASTM B575 at a glance
| Alloys | N10276 (C276), N06022 (C22), N06455 (C4), N06059 and others |
|---|---|
| Products | Plate, sheet and strip |
| Condition | Solution annealed |
| ASME designation | SB-575 |
How to write ASTM B575 on a purchase order
Name the product, size, material specification and grade, the dimensional standard and the certificate. An example line:
Illustrative only — sizes, tests, inspection level and any project values come from your purchase specification.
ASTM B575 edition and verification status
Which edition we have confirmed, and what is still being checked before any numerical requirement is published here.
| Current edition (publisher listing) | B575-17(2023) — checked 7 October 2026 |
|---|---|
| Full-text verification | In progress — numerical requirements are published here only after the current text has been reviewed |
| Edition on your order | The edition named in your purchase order or design code governs — confirm it with your enquiry |
What to know before ordering to ASTM B575
The points that decide whether material to ASTM B575 is accepted at inspection.
- The low carbon keeps the alloys resistant to intergranular attack after welding.
- C276 and C22 are both listed; order by UNS number.
- Pipe in the same alloys is ASTM B622 (seamless) and B619 (welded).
Grades and products we supply to ASTM B575
| Grade | Product | Designation on the certificate |
|---|---|---|
| Hastelloy C276 | Sheet · Plate · Coil | ASTM B575 |
| Hastelloy C22 | Sheet · Plate · Coil | ASTM B575 |
How ASTM B575 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.
Standards used with ASTM B575
Same family
ASTM B575 — questions buyers ask
What is ASTM B575?
ASTM B575 is the specification for low-carbon Ni-Mo-Cr and Ni-Cr-Mo alloy plate, sheet and strip, including Hastelloy C276 (UNS N10276), C22 (N06022), C4 (N06455) and Alloy 59 (N06059). These alloys resist strong reducing and oxidising acids, chlorides and wet chlorine. General requirements are in ASTM B906. ASME adopts it as SB-575.
Is Hastelloy C276 the same as Alloy C-276?
Yes. Hastelloy is a trade name; the alloy is UNS N10276, listed in B575 for flat products.
C276 or C22 — which one?
C22 has more chromium and handles oxidising media better; C276 has more molybdenum and is stronger in reducing acids. Both are in B575.
Which grades do you supply to ASTM B575?
Hastelloy C276, Hastelloy C22 — see the table on this page for the exact product and designation.
What is the difference between ASTM B575 and ASME SB-575?
ASME SB-575 is the ASME Boiler and Pressure Vessel Code (Section II) adoption of ASTM B575. 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.
What is the current edition of ASTM B575?
The publisher's listing checked on 7 October 2026 shows B575-17(2023) as the current edition. The edition that governs an order is the one named in the purchase order or design code. Full-text review of the current edition is in progress, so numerical requirements are not published on this page yet.
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