On this page 6 sections
What ASTM A105 covers
Standard at a glance
- Standard
- ASTM A105 / ASME SA105
- Issued by
- ASTM
- Product form
- Flanges
- Grades on site
- 1
Forged carbon steel flanges, fittings and valve parts for ambient- and higher-temperature pressure systems. It's the standard carbon steel flange material.
Key requirements
- Tensile 485 MPa min, yield 250 MPa min
- Hardness 187 HBW max
- Normalising or other heat treatment where required
- Dimensions per ASME B16.5 / B16.11
Summary for procurement guidance. Refer to the current edition of the standard for full requirements.
Grades supplied to ASTM A105
Ordering to ASTM A105
- State "ASTM A105" 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 A105 cover?
Forged carbon steel flanges, fittings and valve parts for ambient- and higher-temperature pressure systems. It's the standard carbon steel flange material.
Which grades are covered by ASTM A105?
On this site: ASTM A106 Grade B.
Do you supply material certified to ASTM A105?
Yes. Material is supplied to ASTM A105 with EN 10204 3.1 certificates (3.2 on request), where the mill certifies to it.
Is ASME SAA105 the same as ASTM A105?
ASME adopts many ASTM material specifications into Section II with an "S" prefix (for example SA-105). The adopted text is identical or includes stated modifications, and dual-certified material meets both.