On this page 6 sections
What ASTM A182 covers
Standard at a glance
- Standard
- ASTM A182 / ASME SA182
- Issued by
- ASTM
- Product form
- Flanges
- Grades on site
- 22
The key specification for forged flanges and fittings in Cr-Mo alloy steels (F11, F22, F91) and stainless and duplex steels (F304L, F316L, F51, F53, F44 and others).
Key requirements
- Forged from ingots or billets to shape
- Heat treatment by grade
- Tension and hardness tests
- Dimensions typically to ASME B16.5 / B16.47 / B16.11
Summary for procurement guidance. Refer to the current edition of the standard for full requirements.
Grades supplied to ASTM A182
- SS 304 Flanges
- SS 304L Flanges
- SS 304H Flanges
- SS 316 Flanges
- SS 316L Flanges
- SS 316Ti Flanges
- SS 317L Flanges
- SS 321 Flanges
- SS 321H Flanges
- SS 347 Flanges
- SS 347H Flanges
- SS 310S Flanges
- SS 904L Flanges
- SS 254 SMO Flanges
- Duplex 2205 Flanges
- Super Duplex 2507 Flanges
- P1 Flanges
- P5 Flanges
- P9 Flanges
- P11 Flanges
- P22 Flanges
- P91 Flanges
Ordering to ASTM A182
- State "ASTM A182" 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 A182 cover?
The key specification for forged flanges and fittings in Cr-Mo alloy steels (F11, F22, F91) and stainless and duplex steels (F304L, F316L, F51, F53, F44 and others).
Which grades are covered by ASTM A182?
On this site: SS 304, SS 304L, SS 304H, SS 316, SS 316L, SS 316Ti, SS 317L, SS 321, SS 321H, SS 347, SS 347H, SS 310S, SS 904L, SS 254 SMO, Duplex 2205, Super Duplex 2507, P1 / T1 (C-½Mo), P5 / T5 / Grade 5 (5Cr-½Mo), P9 / T9 / Grade 9 (9Cr-1Mo), P11 / T11 / Grade 11 (1¼Cr-½Mo), P22 / T22 / Grade 22 (2¼Cr-1Mo), P91 / T91 / Grade 91 (9Cr-1Mo-V).
Do you supply material certified to ASTM A182?
Yes. Material is supplied to ASTM A182 with EN 10204 3.1 certificates (3.2 on request), where the mill certifies to it.
Is ASME SAA182 the same as ASTM A182?
ASME adopts many ASTM material specifications into Section II with an "S" prefix (for example SA-182). The adopted text is identical or includes stated modifications, and dual-certified material meets both.