ASTM A335 P11 Pipe

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Product Overview

ASTM A335 P11 Pipe is a ferritic alloy steel pipe containing chromium and molybdenum, designed for high-temperature and high-pressure applications. It offers excellent oxidation resistance, strength, hardness, toughness and corrosion resistance. ASTM A335 P11 Pipes are available in seamless, welded, ERW and fabricated forms, with sizes from 1/8 NB to 36 inches NB and customized wall thicknesses and lengths as required. These pipes are widely used in oil & gas, petrochemical, chemical, power generation, boiler and high-temperature service applications.

Key Features

Excellent high-temperature strength
Good oxidation and corrosion resistance
High tensile and yield strength
Excellent hardness and toughness
Suitable for high-pressure applications
Good bending, flanging and forming properties
Available in seamless, welded, ERW and fabricated forms
Available in multiple schedules and customized dimensions
Suitable for boiler and high-temperature service
Available with various surface finishes and end configurations

Product Specifications

Parameter	Specification
Material Grade	ASTM A335 P11 / SA335 P11
Size Range	1/2 to 36 Inch NB
Material Thickness	3 to 12 mm
Schedules	SCH 40, SCH 160, SCH 80, SCH XXS, SCH XS and All Schedules
Type	ERW, Seamless, Welded, Fabricated
Manufacturing Process	Cold Rolled and Cold Drawn
Length	Standard, Double Random and Cut Length
Shape	Round, Rectangular, Square, Hydraulic
End Type	Beveled End, Plain End, Threaded
Outer Diameter	19.05 mm to 114.3 mm and customized sizes
Maximum Length	Up to 16000 mm

Chemical Composition

Element	Composition
Carbon	0.05 - 0.15%
Manganese	0.30 - 0.60%
Phosphorus	0.025% Max
Sulfur	0.025% Max
Silicon	0.50 - 1.00%
Chromium	1.00 - 1.50%
Molybdenum	0.44 - 0.65%

Mechanical Properties

Property	Minimum Requirement
Tensile Strength	415 MPa
Yield Strength	205 MPa
Elongation	30%

Standards & Specifications

ASTM A335
ASME SA335
ASTM A450
ASTM A530
ANSI / ASME B36.10M
IBR
ISO 10474
EN 10204 3.1
PED 2014/68/EU

Applications

ASTM A335 P11 Pipes are widely used in high-temperature and high-pressure applications across oil & gas, petrochemical, chemical processing, power generation, boiler systems, refineries, sugar industries and pressure piping systems. They are suitable for steam lines, high-temperature service, heat exchangers, pressure vessels and other demanding industrial applications.

Frequently Asked Questions

What is ASTM A335 P11 Pipe?

ASTM A335 P11 Pipe is a ferritic alloy steel pipe designed for high-temperature and high-pressure service, containing chromium and molybdenum as major alloying elements.

What is the standard for P11 Pipe?

ASTM A335 and ASME SA335 are the primary standards for P11 alloy steel pipes.

What sizes are available in ASTM A335 P11 Pipe?

ASTM A335 P11 Pipes are available from 1/2 inch to 36 inches NB, with customized sizes available on request.

What are the applications of P11 Pipes?

P11 Pipes are commonly used in oil & gas, petrochemical, chemical, power generation, boiler, refinery and high-temperature pressure piping applications.

Is ASTM A335 P11 Pipe available in seamless form?

Yes, ASTM A335 P11 Pipes are widely supplied in seamless form and can also be available in welded, ERW and fabricated forms depending on requirements.