ASTM A335 P11 Alloy Steel Seamless Pipes

SAKY METAL offer a wide range of ASTM A335 P11 Alloy Steel Seamless Pipes that is using high quality raw materials. These are manufactured in conformance with the international quality standards. Also available these seamless pipes in different size, grades, thickness & Specification demanded by the clients. These pipes are used in various application industry like petrochemical, engineering, chemical, oil and gas and other industrial etc. We also offer our clients in competitive prices in the market.

Specifications of P11 Alloy Steel Seamless Tube:

Size1/8NB TO 24NB IN
StandardsASTM A 335, ASME SA 335, ANSI B36.10
Specialized inLarge Diameter Size
Wall Thickness   Schedule 20 – Schedule XXS (heavier on request) up to 250 mm thk.
FormRound, Square, Rectangular, Hydraulic Etc.
LengthSingle Random, Double Random & Cut Length.
Tubing EndPlain End, Beveled End, Treaded.

Table of Contents

ASTM A335 P11 Carbon Steel Seamless Pipe Chemical Composition:

StandardGradeChemical Composition (%), ≤
ASTM A335/ASME SA335P110.05-0.150.30-0.60





Mechanical properties           Tensile Strength, MpaYield Strength, Mpa

ASTM A335 P11 Carbon Steel Seamless Pipe Heat Treatment Requirements :

GradeHeat Treatment TypeNormalizing Temperature Range F [C]Subcritical Annealing 
or Tempering
Temperature Range F 

P5 (b,c)Full or Isothermal Anneal  
 Normalize and Temper*****1250 [675]
 Subcritical Anneal (P5c only)*****1325 – 1375 [715 – 745]
P9Full or Isothermal Anneal  
 Normalize and Temper*****1250 [675]
P11Full or Isothermal Anneal  
 Normalize and Temper*****1200 [650]
P22Full or Isothermal Anneal  
 Normalize and Temper*****1250 [675]
P91Normalize and Temper1900-1975 [1040 – 1080]1350-1470 [730 – 800]
 Quench and Temper1900-1975 [1040 – 1080]1350-1470 [730 – 800]

ASTM A335 P11 Carbon Steel Seamless Pipe Wall Thickness :

NPS [DN] DesignatorTolerance, % from Specified
1/8 to 2 1/2 [6 to 65] incl., all t/D ratios20.0%12.5%
Above 2 1/2  [65], t/D < or = 5%22.5%12.5%
Above 2 1/2  [65], t/D > 5%15.0%12.5%

Remark:(t = Specified Wall Thickness; D = Specified Outside   Diameter)

Why Choose Us:

1. You can get the perfect material according to your requirement at the least possible price.
2. We also offer Reworks, FOB, CFR, CIF, and door to door delivery prices. We suggest you to do deal for shipping which will be quite economical.
3. The materials we provide are completely verifiable, right from raw material test certificate to the final dimensional statement.(Reports will show on requirement)
4. e guarantee to give a response within 24hours(usually in the same hour)
5. You can get stock alternatives, mill deliveries with minimizing manufacturing time.
6. We are fully dedicated to our customers. If it will not possible to meet your requirements after examining all options, we will not mislead you by making false promises which will create good customer relations.

Quality Assurance(including both Destructive and Non-Destructive)

1. Visual Dimension Test
2. Mechanical examining like tensile, Elongation and reduction of area.
3. Impact analysis
4. Chemical examination analysis
5. Hardness test
6. Pitting protection test
7. Penetrant Test
8. Intergranular Corrosion Testing
9. Roughness Testing
10. Metallography Experimental Test


1. Packing is quite important especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put special concern regarding packaging.
2. Saky Metal’s pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,

ASTM A335 P11 Alloy Steel Seamless Pipes package


Power Plant Boiler

Heat Exchanger

Automobile Components

Oil and Gas

Chemical Industry

Power Plant

Food Industry

Cold-drawn tubes  for Petroleum,pumping cylinder

Cold-drawn tubes for textile,printing and dyeing,transmission tube

Liquid Conveyance

Tunnel Support



Engineering Machinery

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