ISO 9001:2015IBR ApprovedEstablished 1971Full Material Traceability
GroupRequest a quote
PipeSeamless pipeTG-MG-028 · Rev. 0 · October 2026

ASTM A335 P22 — Chemical Composition & Mechanical Properties

ASTM A335 P22 is an ASTM specification for seamless pipe (UNS K21590). This sheet summarises its chemical composition limits and minimum mechanical properties. Typical use: 2¼Cr-1Mo high-temperature steam piping.

Download PDF Request a quoteA4 · Teshi Group document TG-MG-028 · © Teshi Group · controlled document

Chemical composition of ASTM A335 P22 (weight %)

C0.05–0.15
Mn0.30–0.60
P max0.025
S max0.025
Si0.50 max
Cr1.90–2.60
Ni—
Mo0.87–1.13

Mechanical properties

Tensile strength, min415 MPa
Yield strength, min205 MPa
Elongation, min30 %
HardnessNot specified

Heat treatment

Full or isothermal anneal, or normalized & tempered (temper 675 °C min)

Typical service

2¼Cr-1Mo high-temperature steam piping

Reference information compiled from the published standard for convenience. It does not replace the current edition of the governing standard, which takes precedence. Verify critical dimensions and properties before design, purchase or fabrication. Teshi Engineers & Sales Promoters (P) Ltd accepts no liability for errors or omissions.

FAQ

ASTM A335 P22: common questions

What is the minimum yield strength of ASTM A335 P22?

205 MPa, with a minimum tensile strength of 415 MPa.

What is the carbon content of ASTM A335 P22?

0.05–0.15 %.

Ready to build to spec?

Share your drawing, bill of materials or technical requirements with the Teshi team.