ASTM A335 P9 Alloy steel pipe apply to petroleum, chemical industry, electric power, boiler, high temperature resistant, low temperature resistant, corrosion resistant.

ASTM A335 P9 is the part of ASTM A335, The pipe shall be suitable for bending, flanging, and similar forming operations, and for fusion welding. The steel material shall conform to chemical composition, tensile property, and hardness requirements.

The range of ASTM A335 P9 alloy steel pipe sizes that may be examined by each method shall be subjected to the limitations in the scope of the respective practice.

Each length of pipe shall be subjected to the hydrostatic test. Also, each pipe shall be examined by a non-destructive examination method in accordance to the required practices.

The different mechanical test requirements for pipes, namely, transverse or longitudinal tension test, flattening test, and hardness or bend test are presented. Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.

Outer Dimensions: 19.05mm – 114.3mm

Wall Thickness: 2.0mm – 14 mm

Length: max 16000mm

Steel grade: ASTM A335 P9 Alloy Steel Pipe

Packing of ASTM A335 P9 Alloy Steel Pipe:

Bare packing / bundle packing / crate packing / wooden protection at the both sides of tubes and suitably protected for sea-worthily delivery or as requested.

Inspection and Test of ASTM A335 P9 Alloy Steel Pipe:

Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength, Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness, Impact Test), Surface and Dimension Test, No-destructive Test, Hydrostatic Test.

Surface Treatment of ASTM A335 P9 Alloy Steel Pipe:

Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting.
Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.

ASTM A335 P9 Alloy Steel Pipe Alloy Steel Pipe Chemical Compositions(%)

Compositions Data
UNS Designation K41545
Carbon(max.) 0.15
Manganese 0.30-0.60
Phosphorus(max.) 0.025
Silicon(max.) 0.50
Chromium 4.00-6.00
Molybdenum 0.45-0.65
Other Elements …
Mechanical Properties for ASTM A335 P9 Alloy Steel Pipe

Properties Data
Tensile strength, min, (MPa) 415 MPa
Yield strength, min, (MPa) 205 MPa
Elongation, min, (%), L/T 30/20
Material & Manufacture of ASTM A335 P9 Alloy Steel Pipe

Pipe may be either hot finished or cold drawn with the finishing heat treatment noted below.

Heat Treatment of ASTM A335 P9 alloy steel pipe

A / N+T

N+T / Q+T

N+T