A335 P11 Pipe

ASTM A335 P11 pipe manufacturer in India
ISO Certified Manufacturer

A335 P11 Pipe

A335 P11 Pipe is a chromium-molybdenum alloy steel pipe designed for high-temperature and high-pressure service. It is commonly specified for applications where elevated-temperature strength, resistance to oxidation, and reliable performance under demanding operating conditions are important.

Spark Steel supplies alloy steel piping solutions for industrial applications and can assist buyers in selecting A335 P11 Pipe according to the required dimensions, manufacturing condition, applicable standards, and service requirements.

ASTM A335 is the pipe specification, while P11 is the grade designation. The correct material selection should always be based on the applicable design code, operating temperature, pressure, fluid, corrosion conditions, and project specifications.

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Table of Contents

A335 p11 pipe specification

A335 p11 pipe specification

SPECIFICATIONDETAILS
Sizes1/2” to 24”
EndPlain, Beveled
Dimension standardASME B36.10M
Surface treatmentPolished, 3PE, FBE
Density7.8 - 7.9 g/cm³
Wall Thickness4.5mm to 60mm
ASTM A335 P11 pipe

ASTM A335 P11 pipe

SA335 Gr P11 seamless pipe

SA335 Gr P11 seamless pipe

ASTM A335 P11 welded pipe

ASTM A335 P11 welded pipe

p11 chrome pipe

p11 chrome pipe

A335 Gr P11 boiler Pipe

A335 Gr P11 boiler Pipe

SA335P11 ERW pipe

SA335P11 ERW pipe

ASTM A335 p11 pipe price

ASTM A335 p11 pipe price

Description Price in USD Price in Kilogram (INR)
Astm A335 Gr P11 Pipe Smls Pipe, Size: 1/2 inch $ 29.16 ₹ 2,501
Astm A335 P11 Pipe, 1.5 inches $ 1.75 ₹ 150
ASTM A335 Alloy Steel P11 Pipe, Size: 1/2 inch $ 1.28 ₹ 110

ASTM A335 P11 welded pipe testing

  • Positive Material Identification – PMI Testing
  • Intergranular Corrosion (IGC) Test
  • Flaring Test
  • Flattening Test
  • Chemical Analysis – Spectro Analysis
  • Pitting Resistance Test
  • Micro and MacroTest
  • Mechanical Testing
  • Hardness Test

    • P11 pipe schedule chart

    P11 pipe schedule chart

    NPS (inches) Sch 40 WT (mm) OD (mm) Sch 80 WT (mm) XXS WT (mm) Sch 160 WT (mm)
    1 1/2" 3.68 48.3 5.08 10.15 7.14
    2" 3.91 60.3 5.54 11.07 8.74
    2 1/2" 5.16 73.0 7.01 15.09 9.53
    3" 5.49 88.9 7.62 15.24 11.13
    4" 6.02 114.3 8.56 17.12 13.49
    1/2" 2.77 21.3 3.73 7.47 4.78
    3/4" 2.87 26.7 3.91 7.82 5.56
    1" 3.38 33.4 4.55 9.09 6.35
    1 1/4" 3.56 42.2 4.85 9.70 6.35
    5" 6.55 141.3 9.53 19.05 15.88
    6" 7.11 168.3 10.97 21.95 18.26
    8" 8.18 219.1 12.70 28.58 23.01
    10" 9.27 273.1 15.09 31.75 28.58
    12" 9.53 323.9 17.48 36.53 33.32

    Difference between P11 and P12 pipes

    Difference between P11 and P12 pipes

    Property ASTM A335 P11 ASTM A335 P12
    UNS Designation K11597 K11562
    Manganese (Mn) 0.30 – 0.60% 0.30 – 0.61%
    Carbon (C) 0.05 – 0.15% 0.05 – 0.15%
    Silicon (Si) 0.50 – 1.00% 0.50 – 1.00%
    Chromium (Cr) 1.00 – 1.50% 0.80 – 1.25%
    Molybdenum (Mo) 0.44 – 0.65% 0.44 – 0.65%
    Tensile Strength ≥ 415 MPa ≥ 415 MPa
    Elongation ≥ 20% ≥ 20%
    Yield Strength ≥ 205 MPa ≥ 205 MPa
    Temperature Resistance Up to 540–570°C Up to 540–565°C
    Hardness (typical) ~143–170 HB ~143–170 HB

    p11 chrome pipe sizes

    p11 chrome pipe sizes

    OD X Thickness in mm OD X Thickness in milimeter OD X Thickness in mm
    48.3 X 3.2 101.6 X 3.6 63.5 X 3.6
    48.3 X 3.6 101.6 X 4.5 63.5 X 4
    50.8 X 4.5 101.6 X 6.3 63.5 X 6.3
    51 X 3.2 114.3 X 3.6 63.5 X 7.9
    51 X 3.6 114.3 X 5 70 X 3.2
    38.1 X 3.2 76.2 X 4 57 X 4.9
    38.1 X 4 76.2 X 5 57 X 6.3
    38.1 X 6.3 76.2 X 6.3 57 X 7.9
    42.4 X 3.2 82.5 X 4.5 60.3 X 3.2
    42.4 X 4 88.9 X 3.2 60.3 X 3.6
    44.5 X 3.2 88.9 X 3.6 60.3 X 5
    44.5 X 6.3 88.9 X 4 63.5 X 3.2
    51 X 6.3 139.7 X 4 70 X 3.6
    57 X 3.2 139.7 X 5 70 X 6.3
    57 X 3.6 139.7 X 6.3 76.2 X 3.6

    ASTM A335 p11 hardness

    ASTM A335 p11 hardness

    Hardness ≤ 163HB

    P11 pipe welding procedure

    • MAG-welding massive wire
    • Arc welding (E)
    • Flux cored arc welding (FCAW) process
    • Submerged arc welding (SAW)
    • Mig Process
    • MAG-welding cored wire
    • TIG-welding

    Heat Treatment of A335 Gr P11 boiler Pipe

    Heat Treatment of A335 Gr P11 boiler Pipe

    Grade Chet Heat Treatment Type Annealing and Tempering Temp Range F [C] Normalize Temp Range F [C]
    P11 Isothermal or Full Anneal
    Temper and Normalize 1200 [650] *****

    Dimensional tolerance of DIN 1.7335 pipes

    Dimensional tolerance of DIN 1.7335 pipes

    NPS Designation > 12 > 4 – 8, incl. > 8 – 12, incl. 1⁄8 – 1 1⁄2 , incl. > 1 1⁄2 – 4, incl.
    Over mm 1.59 2.38 0.4 0.79
    inch 1 ⁄ 16 3 ⁄ 32 1 ⁄ 64 1 ⁄ 32
    Under mm 0.79 0.79 0.4 0.79
    inch ± 1 % 1 ⁄ 32 1 ⁄ 32 1 ⁄ 64 1 ⁄ 32

    ASTM A335 p11 chemical composition

    ASTM A335 p11 chemical composition

    ASTM A335/ SA 335 Mn C≤ P≤ S≤ Cr Si≤ Mo
    P11 0.30~0.61 0.05~0.15 0.025 0.025 1.00~1.50 0.50~1.00 0.44~0.65

    SA335 p11 mechanical properties

    SA335 p11 mechanical properties

    Grade Yield stress Tensile stress Elongation
    P11 pipe 205 MPa, min 415 MPa, min 30 min %

    A335 Gr p11 equivalent material

    A335 Gr p11 equivalent material

    ASTM Material BSi - British Standards institute
    A335 Gr. P11 1 1/4% Chrome 1/2% Moly 3604/621

    P11 pipe weight chart

    P11 pipe weight chart

    Size ID WT OD Weight per ft
    1/2 0.622 0.109 0.84 0.85
    0.464 0.188 1.31
    3/4 0.824 0.113 1.05 1.13
    0.612 0.219 1.95
    1 1.049 0.133 1.315 1.68
    0.815 0.250 2.85
    1 1/4 1.380 0.140 1.66 2.27
    1.160 0.250 3.77
    1 1/2 1.610 0.145 1.90 2.72
    1.338 0.281 4.86
    2 2.157 0.109 2.375 2.64
    1.939 0.218 5.03
    1.813 0.281 6.29
    2 1/2 2.635 0.120 2.875 3.53
    2.443 0.216 6.14
    2.323 0.276 7.67
    3 3.260 0.120 3.50 4.34
    3.156 0.172 6.12
    3.068 0.216 7.58
    2.938 0.281 9.67
    3 1/2 3.760 0.120 4.0 4.98
    3.500 0.250 10.02
    3.364 0.318 12.52
    4 4.260 0.120 4.5 5.62
    4.124 0.188 8.67
    4.062 0.219 10.02
    4.000 0.250 11.36
    3.876 0.312 13.97
    3.624 0.438 19.02
    5 5.187 0.188 5.563 10.80
    5.047 0.258 14.63
    4.939 0.312 17.51
    4.813 0.375 20.80
    4.313 0.625 32.99
    6 6.407 0.109 6.625 7.59
    6.313 0.156 10.79
    6.219 0.203 13.94
    6.125 0.250 17.04
    6.001 0.312 21.06
    5.875 0.375 25.05
    5.625 0.500 32.74
    5.375 0.625 40.09
    4.897 0.864 53.21

    SA335 P11 pipe surface finish

    SA335 P11 pipe surface finish

    Mill Varnish Galv
    Bare Oiled
    Concrete Coating Tape Wrap
    FBE 3LPE
    Coal Tar 3LPP

    Manufacturing process of ASTM A335 P11 alloy steel pipe

    Manufacturing process of ASTM A335 P11 alloy steel pipe

    P11 seamless Pipe application

    • Condensers
    • Sea Water Equipment
    • Pulp and Paper Industry
    • Heat Exchangers
    • Pharmaceutical Equipment
    • Chemical Equipment
    • Gas Processing
    • Pharmaceuticals
    • Power Generation
    • Specialty Chemicals
    • Off-Shore Oil Drilling Companies
    • Petrochemicals

    ASTM A335 P11 vs P22

    ASTM A335 P11 vs P22

    Category ASTM A335 P11 ASTM A335 P22
    UNS No. K11597 K21590
    Manganese (Mn) 0.30 – 0.60% 0.30 – 0.60%
    Carbon (C) 0.05 – 0.15% 0.05 – 0.15%
    Silicon (Si) 0.50 – 1.00% 0.50 – 1.00%
    Molybdenum (Mo) 0.44 – 0.65% 0.87 – 1.13%
    Chromium (Cr) 1.00 – 1.50% 1.90 – 2.60%
    Tensile Strength ≥ 415 MPa ≥ 415 MPa
    Elongation ≥ 20% ≥ 20%
    Yield Strength ≥ 205 MPa ≥ 205 MPa
    Hardness ~143–170 HB ~150–180 HB
    Creep Resistance Moderate High
    Max Operating Temp ~570°C ~620°C

    What Is A335 P11 Pipe?

    A335 P11 Pipe is a seamless ferritic alloy-steel pipe manufactured according to ASTM A335/A335M requirements. Grade P11 contains chromium and molybdenum as principal alloying elements.

    The addition of chromium and molybdenum helps provide properties required for elevated-temperature applications. P11 is therefore commonly considered for piping systems used in power generation, refineries, petrochemical facilities, boilers, and high-temperature process services.

    A335 P11 Meaning

    A335 – ASTM specification for seamless ferritic alloy-steel pipe intended for high-temperature service.

    P11 – Grade designation within the ASTM A335 specification.

    Pipe – A pressure-containing product normally specified using nominal pipe size and schedule/wall thickness.

    Related search terms such as ASTM A335 P11 Pipe, A335 Grade P11 Pipe, and P11 Alloy Steel Pipe can refer to the same general product family, provided the material and specification requirements are correctly defined.

    Key Properties of A335 P11 Pipe

    A335 P11 Pipe is selected for demanding elevated-temperature applications because of its alloy composition and mechanical characteristics.

    Important characteristics include:

    • Chromium-molybdenum alloy steel construction
    • Suitable for elevated-temperature service
    • Good high-temperature strength
    • Resistance to oxidation compared with plain carbon steel
    • Suitable for pressure-containing piping applications
    • Commonly supplied as seamless pipe
    • Suitable for power and process-industry applications
    • Can be welded using appropriate procedures
    • Available in different nominal sizes and wall thicknesses
    • Requires appropriate heat treatment according to the applicable specification

    Actual performance depends on temperature, pressure, fabrication, heat treatment, environment, and applicable design requirements.

    A335 P11 Seamless Pipe

    A335 P11 Seamless Pipe is manufactured without a longitudinal welded seam and is the standard product form covered by ASTM A335.

    Seamless construction can be advantageous for pressure-containing applications where the applicable engineering specification calls for seamless alloy-steel pipe.

    Applications may include:

    • Boiler piping
    • Superheater systems
    • Steam piping
    • Power-generation equipment
    • Refinery process lines
    • Petrochemical plants
    • High-temperature process piping
    • Heat-transfer systems

    The appropriate manufacturing and inspection requirements should be confirmed according to the project specification.

    Applications of A335 P11 Pipe

    A335 P11 Pipe is commonly used in industries where piping must operate under elevated temperatures and pressure.

    1. Power Generation
    Used in selected boiler, steam, and high-temperature piping systems.

    2. Refineries
    Can be specified for high-temperature process and hydrocarbon service.

    3. Petrochemical Industry
    Used in process piping where elevated-temperature service requirements exist.

    4. Boiler Systems
    P11 alloy steel is commonly considered for boiler-related piping and components subject to elevated temperatures.

    5. Heat Exchanger and Heat-Transfer Systems
    Can be used in suitable high-temperature piping arrangements.

    6. Industrial Processing
    Used in selected industrial systems where alloy-steel piping is required.

    How to Select A335 P11 Pipe

    Before purchasing A335 P11 Pipe, consider the following:

    1. Operating Temperature
      Determine the minimum, normal, and maximum operating temperatures.
    2. Design Pressure
      Confirm the design and operating pressure of the piping system.
    3. Pipe Size
      Specify the required NPS, outside diameter, and wall thickness.
    4. Schedule
      Select the required schedule based on the engineering design.
    5. Manufacturing Requirement
      Confirm that the required product is seamless and compliant with ASTM A335.
    6. Heat Treatment
      Verify the required heat-treatment condition according to the specification.
    7. Testing and Inspection
      Establish whether additional inspection, nondestructive testing, hardness testing, or other project-specific requirements are necessary.
    8. Material Documentation
      Request the appropriate Mill Test Certificate (MTC) and supporting documentation where required.

    Why Choose Spark Steel for A335 P11 Pipe?

    Spark Steel's website positions the company as an established steel products supplier with experience across stainless steel, alloy and industrial steel products.

    For A335 P11 requirements, customers should discuss the exact grade, dimensions, testing, documentation, quantity, and application with the Spark Steel team before placing an order.

    This approach helps ensure the supplied material is aligned with the project's technical and procurement requirements.

    Frequently Asked Questions About A335 P11 Pipe

    A335 P11 Pipe is a seamless ferritic chromium-molybdenum alloy-steel pipe manufactured to ASTM A335/A335M requirements for high-temperature service.

    ASTM A335/A335M is the specification covering seamless ferritic alloy-steel pipe intended for high-temperature service.

    It is commonly considered for power generation, boiler systems, refineries, petrochemical plants, steam systems, and other high-temperature industrial applications.

    Both are chromium-molybdenum alloy-steel grades used for elevated-temperature service, but their alloy compositions and performance characteristics differ. The appropriate grade depends on the design requirements.

    Yes, P11 alloy steel can be welded using appropriate procedures. Welding procedure, preheating, post-weld heat treatment, and inspection requirements should be determined according to the applicable code and project specification.

    A335 P11 Pipe can be specified across various NPS sizes and wall thicknesses. Actual availability should be confirmed for the required dimensions.

    Yes. A335 P11 is specifically intended for high-temperature service, subject to the applicable design temperature, pressure, code, and material requirements.

    Heat treatment requirements apply according to ASTM A335 and the applicable grade/product requirements. The supplier's MTC and applicable specification should be checked.

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