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ASTM A335 P91 K91560 Alloy Steel Seamless Pipe for High Temperature

ASTM A335 P91 K91560 Alloy Steel Seamless Pipe for High Temperature

Brand Name YUHONG
Model Number ASTM A335 P91 SEAMLESS PIPE
Certification ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin China
Minimum Order Quantity 1000KGS
Price Negotiable
Payment Terms T/T,L/C
Supply Ability 1000 tons per month
Delivery Time Depends on quantity
Packaging Details Ply-wooden Case /Iron Case/ Bundle with plastic Cap/Woven Case
Specification ASTM A335, ASME SA335, EN10216-5 , GOST9941-91, JIS 3459, DIN17458
Grade P91
Type Seamless
Surface Pickled and Annealed, Polished, Bright Annealed
Non Destructive Tesr Eddy Current Test -ASTM E426, Hystostatic Test-ASTM A999, Ultrsonic Test -ASTM E213
Size Standard ASTM B16.10 & B16.19 & Customized
Detailed Product Description

ASTM A335 P91 K91560 Alloy Steel Seamless Pipe for High Temperature

 

 

What is ASTM A335?

 

This specification covers nominal wall and minimum wall seamless ferritic alloy-steel pipe intended for hightemperature service. Pipe ordered to this specification shall be suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding. Selection will depend upon design, service conditions, mechanical properties, and high-temperature characteristics.

 

P91 Chemical Composition

 

Grade

C, %

Mn, %

P, %

S, %

Si, %

Cr, %

Mo, %

V, %

N, %

Ni, %

Al, %

Nb, %

ASTM A335 P91

0.08-0.12

0.3-0.6

0.02 max

0.01 max

0.2-0.5

8.0-9.5

0.85-1.05

0.18-0.25

0.03-0.07

0.4 max

0.04 max

0.06-0.10

 

 

P91 Equivalent Grades

 

ASTMASMEEquivalent materialUNS
A335 P91SA335 P91T91, K90901, X10CrMoVNb9-1, 1.4903K91560

 

ASTM A335 P91 Mechanical Properties

 

Tensile Strength, MPa

Yield Strength, MPa

Elongation, %

585 min

415 min

20 min


 

A335 is often called chrome moly pipe because of the chemical makeup of Mo and Cr. Mo increases the strength of steel as well as the elastic limit, resistance to wear, impact qualities, and hardenability. Moly increases the resistance to softening, restrains grain growth and makes chromium steel less susceptible to embrittlement. Moly is the most effective single additive that increases high temperature creep strength. It also enhances the corrosion resistance of steel, and inhibits pitting.

 

PMI


 

Size Inspection

 

 


 

A335 seamless steel pipe is a popular choice for high temperature applications due to several key reasons:

 

High temperature resistance: A335 seamless steel pipe is designed to withstand temperatures up to 600°C (1112°F), making it an ideal material for high-temperature applications such as steam pipes and heat exchangers.


Corrosion Resistance: A335 seamless steel pipe exhibits good corrosion resistance in corrosive environments, such as those found in chemical processing and the oil and gas industry.


High Strength: A335 seamless steel pipe has high tensile strength and yield strength, making it ideal for high-pressure applications.


Good weldability: A335 seamless steel pipe can be easily welded using traditional methods without preheating or post-weld heat treatment.

 

Applications


ASTM A335 Alloy Steel P91 is commonly used in power plants, refineries, and other industrial settings where high-temperature and high-pressure conditions are present. It is used in boilers, heat exchangers, and other equipment that requires high-temperature resistance and corrosion resistance.

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