ASTM A335 P22 High Pressure Boiler Pipe

SA335 P22 seamless steel pipe is a grade in the ASTM A335/A335M standard. It is a 2.25Cr-1Mo chromium-molybdenum high-temperature ferritic steel for boilers and superheaters.

standard:ASTM

Surface :1. Galvanized 2. Black and Color Painting

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introduction

A335 P22 alloy pipe is ASTM A335/A335M standard seamless steel pipe, which is a 2.25Cr-1Mo chromium pipe for boilers and superheaters.
A335 P22 alloy steel pipe is 2.25Cr-1Mo chromium-molybdenum high-temperature ferritic steel for boilers and superheaters. It is a high-temperature and high-pressure pipeline material used in power plants.

What is the difference between A213 T22 tube and A335 P22 tube?
The chemical composition and properties of T22 and P22 alloy steel pipes are similar. T22 is used on the heating surface of the boiler and is in direct contact with the flue gas. Seamless steel pipes are used to connect pipes. T/P22 is equivalent to German 10CrMo910. T22 belongs to ASTMSA213 boilers, superheaters and heat exchangers. Seamless ferritic and austenitic alloy steel pipes for appliances, P22 belongs to ASTM SA335 seamless ferritic alloy steel pipes for high temperature.

What material is the A335-P22 made of?
A335-P22 implementation standard: American standard ASTM A335/A335M-2003
Chemical composition of A335-P22: C 0.05~0.15 Mn 0.30~0.60 Si ≤0.50 P ≤0.25 S ≤0.025 Cr 1.9~2.6 Mo 0.87~1.13.
Purpose: Working temperature 540-750 degrees, high temperature working environment, high pressure, ultra-high pressure, subcritical power station boilers, superheaters, headers and main steam pipelines, etc.

Data table

Grade	Mechanical property
Grade	Tensile Strength(MPa)	Yield Strength(MPa)	Elongation(%)
P22	≥415	≥205	≥30

Outside diameter tolerances of ASTM A335 Seamless Ferritic Alloy-Steel Pipe

NPS Designator	Over		Under
NPS Designator	in.	mm	in.	mm
1⁄8 to 1 1⁄2 , incl.	1 ⁄ 64 (0.015)	0.40	1 ⁄ 64 (0.015)	0.40
Over 1 1⁄2 to 4, incl.	1 ⁄ 32 (0.031)	0.79	1 ⁄ 32 (0.031)	0.79
Over 4 to 8, incl.	1 ⁄ 16 (0.062)	1.59	1 ⁄ 32 (0.031)	0.79
Over 8 to 12, incl.	3 ⁄ 32 (0.093)	2.38	1 ⁄ 32 (0.031)	0.79
Over 12	± 1 %

company advantage

GNEE provides all shipping documents for A335 P22 alloy steel pipe delivery from the factory to the customer. All A335 P22 alloy steel tubes are supplied with standard end caps on both ends. Special types of end caps are available if required by the customer. Each crate, box and bundle is marked.

FAQ

Q.What is the temperature range of the A335 P22?
A.Alloy steel P22 pipe is also hot worked in the temperature range of 954°C (1750°F) – 1149°C (2100°F).

Q.Can we visit your factory?
A.Warmly welcome, we will pick you up once we have your schedule.

Q.What is your lead time?
A. Regular stock is usually 10 days. Depends on the products.