Enquire Now

ASTM A335 P11 Pipes & Tubes

HOME → Our Products → Pipe & Tube → Alloy Pipe & Tube →ASTM A335 P11 Pipe

ASTM A335 P11 Pipe Suppliers & Manufacturer in India

ASTM A335 P11 Pipes & Tubes

Sachin Steel is a trusted manufacturer, supplier, and exporter of high-quality ASTM A335 P11 Pipe. Industries widely use these pipes because they are durable and reliable, performing well under high-temperature conditions. As a chromium-molybdenum alloy, P11 steel offers an excellent balance of strength, temperature resistance, and cost-effectiveness, making it ideal for critical industrial applications.

The ASTM A335 P11 Pipe is designed to provide superior mechanical and physical properties. Their lightweight yet strong composition allows easy handling, fabrication, and installation according to client requirements. The alloy includes essential elements like titanium, copper, zinc, and iron, which enhance its overall strength, wear resistance, and ability to withstand harsh environments. Additionally, P11 alloy steel exhibits strong resistance to rust and corrosion, ensuring long-term service life and minimal maintenance.

Our seamless P11 pipes meet stringent international standards, ensuring consistent quality and performance for industrial needs. Designed for high-temperature service, these pipes are suitable for applications in power plants, refineries, and other critical sectors where reliability and efficiency are paramount.

Connect with us to get premium ASTM a335 P11 pipe on time at best affordable prices.

inverted-commas

ASME SA335 Grade P11 High Pressure Steel Pipe, ASTM A335 P11 ERW Pipe, ASME SA335 P11 Pipe, ASTM A335 P11 Alloy Steel Seamless Pipe, P11 Alloy Tube, ASTM A335 P11 Alloy Steel Tube Supplier, Exporter A335 GR P11 Welded Pipe.

Table Of Content

Introduction to ASTM A335 P11 Pipe

ASTM A335 P11 Pipes are high-performance ferritic alloy-steel pipes designed for demanding high-temperature applications. Commonly known as 1.25Cr-0.5Mo or Chrome Moly P11, these pipes are identified by UNS K11597 and meet the ASTM A335 and ASME SA335 standards. The P11 composition includes carbon, manganese, phosphorus, sulphur, silicon, chromium (1.00–1.50%), and molybdenum (0.44–0.65%), which provides excellent tensile and yield strength, wear resistance, hardness, and corrosion resistance.

Manufactured through seamless hot rolling or cold drawing, ASTM A335 P11 pipes ensure uniform structure, high toughness, and reliable performance under high pressure and temperature. These alloy steel pipes are suitable for heat treatment and are widely used in power plants, boilers, turbine blades, spacecraft components, and nuclear reactors. Their superior high-temperature strength, creep resistance, and oxidation resistance make P11 pipes a trusted choice for industries requiring durable and versatile steel piping solutions.

Chrome Moly Alloy ASTM A335 Pipes

ASTM A335 pipes, commonly referred to as Chrome Moly pipes, are alloy steel pipes with significant amounts of Chromium and Molybdenum. Molybdenum enhances the pipe’s strength, elasticity, hardenability, and overall durability. It also improves resistance to softening at high temperatures, limits grain growth, and reduces the risk of embrittlement. This element plays a crucial role in boosting high-temperature resistance, typically up to 540–750°C, while also enhancing corrosion resistance.

Key Element – Chromium

Chromium is a vital element in these pipes, contributing to oxidation resistance even at elevated temperatures. When the chromium content exceeds 12%, the material approaches the characteristics of stainless steel. Chromium also improves hardness, tensile strength, and yield strength at standard operating temperatures, making the pipes reliable under stress.

Thanks to this unique composition, ASTM A335 Chrome Moly pipes are widely used in high-temperature and high-pressure applications. They are ideal for power plants, refineries, petrochemical industries, and oil field services, where durability, safety, and performance are critical. These pipes ensure long-term reliability in demanding environments while maintaining.

Available Types of ASTM A335 P11 Pipe

seamless-pipes

ASTM A335 P11 Seamless Pipe

seamless-tubes

SA 335 GR P11 Welded Pipe

erw

ASTM A335 P11 Steel ERW Pipe

Rectangular Pipe

Alloy Steel P11 Rectangular Pipe

Welded Tube

UNS K11597 High Pressure Pipe

Square Pipe

ASTM A335 P11 Square Pipe

Request Quote on Types of ASTM A335 P11 Pipe
inverted-commas

UNS K11597 High Pressure Pipe and SA 335 gr P11 Seamless Pipe supplier in India, Alloy Steel A335 GR P11 Pipes & Tubes Supplier, ASTM A335 P11 Alloy Steel Pipes & Tubing, ASME SA335 P11 Alloy Steel Pipes, Sa335 P11 Pipe Suppliers.

ASTM A335 Grade P11 Specification

Size in Inch 1/8NB TO 24NB inch
ASTM Standards ASTM A 335, and ASME SA 335
Type Seamless Pipe
Specialized in Size Large Diameter Size
Outer Dimensions Chart 19.05milimeter – 114.3milimeter
Wall Thickness Chart 2.0milimeter – 14 milimeter
Length in milimeter max 16000milimeter
Schedule Chart Schedule 20 – XXS up to 250 milimeter thk.
Pipe Form Round, Rectangular, Square, Hydraulic Etc.
Length Single, Double Random & Cut to Length.
Pipe & Tube End Plain, Beveled, Treaded.

ASTM A335 P11 Pipe Chemical Composition

Mo, % C, % Cr, % P, % S, % Mn, % Si, %
0.45-0.65 0.015 max 4.00-6.00 0.025 max 0.025 max 0.30-0.60 0.50 max

A335 P11 Pipe Equivalent Material

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

ASTM A335 P11 High Pressure Pipe Size Chart

Outer Diameter * Thickness in MM Outer Diameter * Thickness in MM Outer Diameter * Thickness in MM
38.1 * 3.2 57.0 * 4.9 76.2 * 4.0
38.1 * 4.0 57.0 * 6.3 76.2 * 5.0
38.1 * 6.3 57.0 * 7.9 76.2 * 6.3
42.4 * 3.2 60.3 * 3.2 82.5 * 4.5
42.4 * 4.0 60.3 * 3.6 88.9 * 3.2
44.5 * 3.2 60.3 * 5.0 88.9 * 3.6
44.5 * 6.3 63.5 * 3.2 88.9 * 4.0
48.3 * 3.2 63.5 * 3.6 101.6 * 3.6
48.3 * 3.6 63.5 * 4.0 101.6 * 4.5
50.8 * 4.5 63.5 * 6.3 101.6 * 6.3
51.0 * 3.2 63.5 * 7.9 114.3 * 3.6
51.0 * 3.6 70.0 * 3.2 114.3 * 5.0
51.0 * 6.3 70.0 * 3.6 139.7 * 4.0
57.0 * 3.2 70.0 * 6.3 139.7 * 5.0
57.0 * 3.6 76.2 * 3.6 139.7 * 6.3

Mechanical Properties of ASME SA335 Alloy Steel P11 Pipe

Grade Tensile Strength, MPa Yield Strength, MPa Elongation, %
P11 415 min 220 min 30 min

ASTM A335 P11 Pipe Dimensional Tolerances

ASTM A530 & ASTM A335 NPS Outside Diameter, inch Tolerance, mm
1/8≤Outer Diameter≤1-1/2 ±0.40
1-1/2＜Outer Diameter≤4 ±0.79
4＜Outer Diameter≤8 +1.59/-0.79
8＜Outer Diameter≤12 +2.38/-0.79
Outer Diameter>12 ±1%

Weight Chart for A335 Gr P11 Pipe

Size ID OD WT Weight/ft
1/2 0.622 0.84 0.109 0.85
3/4 0.824 1.05 0.113 1.13
1 1.049 1.315 0.133 1.68
1 1/4 1.380 1.66 0.140 2.27
1 1/2 1.610 1.90 0.145 2.72
2 2.157 2.375 0.109 2.64
2 1/2 2.635 2.875 0.120 3.53
3 3.260 3.50 0.120 4.34
3 1/2 3.760 4.0 0.120 4.98
4 4.260 4.5 0.120 5.62
5 5.187 5.563 0.188 10.80
6 6.407 6.625 0.109 7.59

Physical Properties of ASTM A335 Gr P11 Pipe

Property Value
Thermal conductivity 36 – 43 W / (m·K)
Melting point 1382 – 1529 °C
Thermal Expansion Coefficient 1.1E – 5 – 1.4E – 5 1 / K
Specific heat capacity 448 – 502 J / (kg·K)

Application of ASTM A335 P11 Pipe & Tubes

    • Petrochemical Industry
    • Chemical Industry
    • Oil and Gas Industry
    • Pulp & Paper Indusry
    • Power Plant Industry
    • Food Processing Industry
    • Pharmaceuticals Industry
    • Energy Industry
    • Aerospace Industry
Application Industries

Frequently Asked Questions About ASTM A335 P11 Pipes & Tubes

ASTM A335 grade P11 is a seamless alloy steel pipe made of chromium-molybdenum (Cr-Mo) steel. It is designed for high-temperature and high-pressure applications, offering excellent strength, corrosion resistance, and durability. These pipes are commonly used in power plants, refineries, and chemical industries.

ASTM defines the material standards and properties of pipes, including chemical composition and mechanical characteristics. ASME, on the other hand, sets design and fabrication standards, specifying dimensions, pressure ratings, and allowable stresses for piping systems. Simply put, ASTM focuses on the pipe material, while ASME focuses on pipe design and usage.

ASTM A335 P11 pipe has a minimum tensile strength of 415 MPa (60,000 psi) and a minimum yield strength of 205 MPa (30,000 psi).

The hardness of P11 pipes typically does not exceed 250 HBW (Brinell) or 25 HRC (Rockwell C), depending on the heat treatment and applicable standards.

P11 pipes are suitable for continuous service at temperatures up to approximately 590°C (1094°F), making them ideal for steam boilers, heat exchangers, and pressure vessels.

Sachin-Steel_Product-CTA

Alloy Steel Pipes & Tubes

Materials

Our Products

Enquire Now

Fill out the form below, and our team will get in touch with you within 24 hours.