ASTM A335 P22 — Pipe & Tube, Fittings & Flanges
Also sold as SA-335 P22 · 2¼Cr-1Mo alloy pipe · UNS K21590
ASTM A335 P22 is a chrome-moly alloy steel pipe for high-temperature, high-pressure service, chosen for high-pressure steam and hydrogen service up to about 580 °C. We supply it as pipe & tube, fittings, flanges, with EN 10204 3.1 certificates, from Mumbai to India, the Gulf, South-East Asia, South America, Europe, the UK and the USA.
- P22
- ρ 7.85 g/cm³
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
ASTM A335 P22 Specifications by Product — Which Standard Applies?
The material standard changes with the product form. This is the table buyers ask for most.
| Product | Material standard | Dimensions |
|---|---|---|
| ASTM A335 P22 pipe & tube | ASTM A335 P22 | ASME B36.19 / B36.10 |
| ASTM A335 P22 fittings | ASTM A234 WP22 · ASTM A182 F22 | ASME B16.9 · B16.11 |
| ASTM A335 P22 flanges | ASTM A182 F22 | ASME B16.5 · B16.47 |
ASTM A335 P22 Chemical Composition
Under technical review for TDS.
| Element | Current requirement |
|---|---|
| Chromium | As specified |
| Molybdenum | As specified |
| Carbon | As specified |
| Manganese | As specified |
| Silicon | As specified |
| Phosphorus | As specified |
| Sulphur | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification to be verified: ASTM A335 Grade P22.
ASTM A335 P22 Mechanical Properties
Under technical review for TDS.
| Property | Current requirement |
|---|---|
| Tensile strength | As specified |
| Yield strength 0.2% | As specified |
| Elongation | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification and condition to be verified: ASTM A335 Grade P22 — condition per order.
Density & Physical Properties
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Melting range | 1420 – 1530 °C |
| Magnetic | Magnetic |
ASTM A335 P22 Equivalent Grades
Where Is ASTM A335 P22 Used? Applications
Welding ASTM A335 P22
| Matching filler | ER90S-B3 / E9018-B3 |
|---|---|
| Also used | Preheat and PWHT per ASME B31.1 / B31.3 |
ASTM A335 P22 for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiASTM A335 P22 — questions buyers ask
What is ASTM A335 P22?
ASTM A335 P22 is a chrome-moly alloy steel pipe for high-temperature, high-pressure service. It is chosen for high-pressure steam and hydrogen service up to about 580 °C.
Which standards cover ASTM A335 P22 products?
Pipe & Tube: ASTM A335 P22; Fittings: ASTM A234 WP22 · ASTM A182 F22; Flanges: ASTM A182 F22. Always name the standard and edition on your order.
What is the density of ASTM A335 P22?
7.85 g/cm³ — use it to calculate weights: plate kg = L(m) × W(m) × t(mm) × 7.85.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026