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ASTM A335 Seamless Alloy Pipes

Astm A335 standard specication for seamless ferritic alloy-steel pipe for high-temperature service.

Description

Details

ASTM A335 P11 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.

1.ASTM  A335  chemical compositions%

 

 Compositions

Data

UNS Designa-tion

K11597

Carbon

0.05-0.60

Manganese

0.30-0.60

Phosphorus(max.)

0.025

Sulfur(max.)

0.025

Silicon

0.50-1.00

Nickel

Chromium

1.00-1.50

Molybdenum

0.44-0.65

 

2.Mechanical properties for ASTM A335 P11

 

Properties

Data

Tensile strength, min, (MPa)

415 Mpa

Yield strength, min, (MPa)

205 Mpa

Elongation, min, (%), L/T

30/20

3.Notes for hardness test

P11 shall not have a hardness not exceeding 250 HB/265 HV [25HRC].


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