ASTM A182
Forged or rolled alloy and stainless steel pipe flanges, fittings and valves
Covers forged or rolled alloy and stainless steel pipe flanges, forged fittings and valve parts — grades such as F304L, F316L, F51 (S31803), F60 (S32205), F53 (2507), F55 (S32760), F904L, F11 and F22.
- Flanges & forgings
- ASME SA-182
- 12 grades in stock range
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What to know before ordering to ASTM A182
The points that decide whether material to ASTM A182 is accepted at inspection.
- The "F" number is the forging grade: F51 is S31803 and F60 is S32205 (2205 duplex), F53 is 2507 super duplex.
- Flange dimensions follow ASME B16.5 or B16.47; A182 sets the material.
- Forged socket-weld and threaded fittings are also ordered to A182.
Grades and products we supply to ASTM A182
| Grade | Product | Designation on the certificate |
|---|---|---|
| SS 904L | Fittings · Flanges | ASTM A182 F904L |
| SS 304 | Fittings · Flanges | ASTM A182 F304 |
| SS 304L | Fittings · Flanges | ASTM A182 F304L |
| SS 310 / 310S | Fittings · Flanges | ASTM A182 F310 |
| SS 316 / 316L | Fittings · Flanges | ASTM A182 F316L |
| SS 321 | Fittings · Flanges | ASTM A182 F321 |
| SS 347 | Fittings · Flanges | ASTM A182 F347 |
| Duplex 2205 | Fittings · Flanges | ASTM A182 F51 / F60 |
| Super Duplex 2507 | Fittings · Flanges | ASTM A182 F53 |
| Super Duplex S32760 | Fittings · Flanges | ASTM A182 F55 |
| ASTM A335 P11 | Fittings · Flanges | ASTM A182 F11 |
| ASTM A335 P22 | Fittings · Flanges | ASTM A182 F22 |
How ASTM A182 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.
ASTM A182 — questions buyers ask
What does ASTM A182 cover?
Covers forged or rolled alloy and stainless steel pipe flanges, forged fittings and valve parts — grades such as F304L, F316L, F51 (S31803), F60 (S32205), F53 (2507), F55 (S32760), F904L, F11 and F22.
Which grades do you supply to ASTM A182?
SS 904L, SS 304, SS 304L, SS 310 / 310S, SS 316 / 316L, SS 321, SS 347, Duplex 2205, Super Duplex 2507, Super Duplex S32760, ASTM A335 P11, ASTM A335 P22 — see the table on this page for the exact product and designation.
What is the difference between ASTM A182 and ASME SA-182?
ASME SA-182 is the ASME Boiler and Pressure Vessel Code (Section II) adoption of ASTM A182. 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.
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