ASTM A335 P9 Alloy Steel Pipes

Basic Info

Model No.: ASTM A335 P9 Alloy Steel Pipes

Brand: YUHONG

Additional Info

Packaging: Ply-wooden Case /Iron Case/ Bundle with plastic Cap

Productivity: 1500 Tons Per Month

Transportation: Ocean,Land,Air

Place of Origin: CHINA

Certificate: ISO9001-2008, API 5L, API 5CT, PED, AD-2000, EN10204-3.1B

Payment Type: T/T,L/C,D/P

Product Description

ASTM A335 P9 Alloy Steel Pipes

Alloy steel, Alloy steel pipe, ASTM A335, ASTM A335 p9, Steel pipe, steel pipes

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.

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.

Material & Manufacture

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

Heat Treatment

A / N+T
N+T / Q+T
N+T

Mechanical Tests Specified

Transverse or Longitudinal Tension Test and Flattening Test, Hardness Test, or Bend Test
For material heat treated in a batch-type furnace, tests shall be made on 5% of the pipe from each treated lot. For small lots, at least one pipe shall be tested.
For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipe.

Notes for Bend Test:

For pipe whose diameter exceeds NPS 25 and whose diameter to wall thickness ratio is 7.0 or less shall be subjected to the bend test instead of the flattening test.
Other pipe whose diameter equals or exceeds NPS 10 may be given the bend test in place of the flattening test subject to the approval of the purchaser.
The bend test specimens shall be bent at room temperature through 180 without cracking on the outside of the bent portion.

Chemical Requirements of ASTM A335 P9

Chemical elements	Data
UNS Designa-tion	K41545
Carbon(max)	0.15
Manganese	0.30-0.60
P&S(max)	0.025
Silicon(max)	0.50
Chromium	4.00-6.00
Molybdenum	0.45-0.65
Others	-

Mechanical Properties of ASTM A335 P9

Properties	Data
Tensile strength, min,( 57018532,MPa)	415
Yield strength, min,( 57018533,MPa)	205
Elongation, min,( 57018534,%), L/T	30/20

Permitted tolerance for OD

OD	Plus tolerance(+)	Minus tolerance (-)
10.29-48.3	0.4	0.4
<48.3--≤114.3	0.79	0.79
<114.3-≤219.1	1.59	0.79
<219.1-≤323.9	2.38	0.79
<323.9	±1%

Application: For manufacturing boiler, reheater, superheater, heat exchanger, condenser, etc.

Inspection items:
1. Chemical Composition
2. Mechanical Properties
3. Hardness
4. Impact Test
5. Flattening Test
6. Bending Test
7. Flaring Test
8. Flange Test
9. Drift Test
10. Hydrostatic Test
11. Eddy Current Test
12. Ultrasonic Test
13. M. P. I.
14. L. M. T.
15. Size
16. Surface Quality
17. Decarburizing Layer Depth
18. Micro Structure
19. Grain Size Analysis
20. Intercrystalline Corrosion
21. Stabilization Heat Treatment.
22. Erosion Test