On this page 6 sections
What ASTM A240 covers
Standard at a glance
- Standard
- ASTM A240 / ASME SA240
- Issued by
- ASTM
- Product form
- Plates
- Grades on site
- 26
The governing specification for stainless steel plate, sheet and strip for pressure vessels and general applications, covering austenitic, ferritic, martensitic and duplex grades.
Key requirements
- General requirements per ASTM A480 (tolerances, finishes)
- Chemical and mechanical requirements by grade
- Annealing requirements
- Bend tests where specified
Summary for procurement guidance. Refer to the current edition of the standard for full requirements.
Grades supplied to ASTM A240
- SS 201 Plates
- SS 202 Plates
- SS 301 Plates
- SS 304 Plates
- SS 304L Plates
- SS 304H Plates
- SS 309S Plates
- SS 310S Plates
- SS 316 Plates
- SS 316L Plates
- SS 316Ti Plates
- SS 317 Plates
- SS 317L Plates
- SS 321 Plates
- SS 321H Plates
- SS 347 Plates
- SS 347H Plates
- SS 409 Plates
- SS 410 Plates
- SS 430 Plates
- SS 441 Stainless Steel
- SS 904L Plates
- SS 254 SMO Plates
- SS 253 MA Plates
- Duplex 2205 Plates
- Super Duplex 2507 Plates
Ordering to ASTM A240
- State "ASTM A240" and the edition if your project requires it
- Grade / designation and product dimensions
- Supplementary requirements (tests, heat treatment, certification)
- Certificate type: EN 10204 3.1 or 3.2
Frequently asked questions
What does ASTM A240 cover?
The governing specification for stainless steel plate, sheet and strip for pressure vessels and general applications, covering austenitic, ferritic, martensitic and duplex grades.
Which grades are covered by ASTM A240?
On this site: SS 201, SS 202, SS 301, SS 304, SS 304L, SS 304H, SS 309S, SS 310S, SS 316, SS 316L, SS 316Ti, SS 317, SS 317L, SS 321, SS 321H, SS 347, SS 347H, SS 409, SS 410, SS 430, SS 441, SS 904L, SS 254 SMO, SS 253 MA, Duplex 2205, Super Duplex 2507.
Do you supply material certified to ASTM A240?
Yes. Material is supplied to ASTM A240 with EN 10204 3.1 certificates (3.2 on request), where the mill certifies to it.
Is ASME SAA240 the same as ASTM A240?
ASME adopts many ASTM material specifications into Section II with an "S" prefix (for example SA-240). The adopted text is identical or includes stated modifications, and dual-certified material meets both.