ASTM A335 P11 | SA 3365 Gr P11 Alloy Steel Pipe Supplier

A335 P11 Alloy Steel Pipe, ASTM A335 P11 astm a335 p11 chemical composition, astm a335 p11 mechanical properties, p11 material equivalent, p11 chrome moly Alloy Pipe

ASTM A335 P11 Alloy Steel Seamless Pipes

ASTM A335 P11 is a type of seamless alloy steel pipe that is widely used in high-temperature applications, such as power generation, petrochemical, and refineries. This type of pipe is made from a combination of chromium and molybdenum, which gives it excellent resistance to high-temperature and high-pressure conditions.

One of the key benefits of ASTM A335 P11 pipes is their ability to withstand high temperatures without deforming or breaking. They have a high creep strength, which means that they can maintain their shape and structural integrity even under prolonged exposure to high temperatures. This makes them an ideal choice for high-temperature applications where other materials may fail.


In addition, ASTM A335 P11 pipes have good corrosion resistance, which makes them suitable for use in harsh environments where corrosion and erosion are common. They are also easy to weld and fabricate, which makes them a popular choice for piping systems that require complex configurations and shapes.

ASTM A335 P11 pipes are available in a range of sizes and thicknesses, and they are classified according to their chemical composition and mechanical properties. The standard specifies various tests and inspections, such as hydrostatic testing, ultrasonic testing, and magnetic particle inspection, to ensure that the pipes meet the required specifications.

Overall, ASTM A335 gr P11 pipes are a reliable and durable choice for high-temperature applications in various industries. Their excellent resistance to high temperatures and corrosion, combined with their ease of fabrication and welding, make them a popular choice for piping systems that require high performance and reliability. If you're looking for a pipe that can withstand harsh environments and high temperatures, ASTM A335 P11 pipes may be the perfect solution for your needs.

A335 P11 Alloy Steel Pipe Specifications

Size 1/2 to 36 Inch NB
Standard ASTM A335 P11, SA335 P11
Material Thickness 3 To 12 mm
Schedules SCH 40, SCH 160, SCH 80, SCH XXS, SCH XS, All Schedules
Tolerance Cold drawn pipe: +/-0.1mm
Cold rolled pipe: +/-0.05mm
Type ERW / Seamless / Welded / Fabricated
Craft Cold rolled and Cold drawn
Length Standard
Double &
In Cut length also.
pipe available in Form of Round, Rectangular, Square, Hydraulic
End Beveled End, Plain End, Treaded

ASTM/ASME A335 P11 Alloy Steel Chemical Composition

ASTM A335 P11 Manganese Molybdenum Phosphorus Carbon Sulfur Chromium Silicon
0.30 – 0.60 0.44 – 0.65 0.025 max 0.05 – 0.15 0.025 max 1.00 – 1.50 0.50 – 1.00
ASME A335 P11 Alloy Steel Pipe Mechanical Properties
Yield Properties Tensile Properties Elongational
205 min 415 min 30 min
ASTM/ASME A335 P11 Tolerance
ASTM A450 Hot rolled Outside Diameter, mm Tolerance, mm
Outer Diameter≤101.6 +0.4/-0.8
101.6<Outer Diameter≤190.5 +0.4/-1.2
190.5<Outer Diameter≤228.6 +0.4/-1.6
Cold Drawn Outside Diameter, mm Tolerance, mm
Outer Diameter<25.4 ±0.10
25.4≤Outer Diameter≤38.1 ±0.15
38.1<Outer Diameter<50.8 ±0.20
50.8≤Outer Diameter<63.5 ±0.25
63.5≤Outer Diameter<76.2 ±0.30
76.2≤Outer Diameter≤101.6 ±0.38
101.6<Outer Diameter≤190.5 +0.38/-0.64
190.5<Outer Diameter≤228.6 +0.38/-1.14
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%
Alloy Steel SA 335 Gr 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
SA335 gr P11 Round Pipe Weight Chart
Size Nominal Pipe Size Pipe Outer Diameter Wall Thickness Pipe Inner Diameter Weight per Foot
1/2 0.84 0.109 0.622 0.85
0.147 0.546 1.09
0.188 0.464 1.31
0.294 0.252 1.72
3/4 1.05 0.113 0.824 1.13
0.154 0.742 1.48
0.219 0.612 1.95
0.308 0.434 2.44
1 1.315 0.133 1.049 1.68
0.179 0.957 2.17
0.250 0.815 2.85
0.358 0.599 3.66
1 1/4 1.66 0.140 1.380 2.27
0.191 1.278 3.00
0.250 1.160 3.77
0.382 0.896 5.22
1 1/2 1.90 0.145 1.610 2.72
0.200 1.500 3.63
0.281 1.338 4.86
0.400 1.100 6.41
2 2.375 0.109 2.157 2.64
0.154 2.067 3.66
0.218 1.939 5.03
0.250 1.875 5.68
0.281 1.813 6.29
0.344 1.687 7.47
0.436 1.503 9.04
2 1/2 2.875 0.120 2.635 3.53
0.203 2.469 5.80
0.216 2.443 6.14
0.250 2.375 7.02
0.276 2.323 7.67
0.375 2.125 10.02
0.552 1.771 13.71
3 3.50 0.120 3.260 4.34
0.156 3.188 5.58
0.172 3.156 6.12
0.188 3.124 6.66
0.216 3.068 7.58
0.250 3.000 8.69
0.281 2.938 9.67
0.300 2.900 10.26
0.438 2.624 14.34
0.600 2.300 18.6
3 1/2 4.0 0.120 3.760 4.98
0.226 3.548 9.12
0.250 3.500 10.02
0.281 3.438 11.17
0.318 3.364 12.52
0.636 2..728 22.87
4 4.5 0.120 4.260 5.62
0.156 4.188 7.24
0.188 4.124 8.67
0.203 4.094 9.32
0.219 4.062 10.02
0.237 4.026 10.80
0.250 4.000 11.36
0.281 3.938 12.67
0.312 3.876 13.97
0.337 3.826 15.00
0.438 3.624 19.02
0.531 3.438 22.53
0.674 3.152 27.57
5 5.563 0.188 5.187 10.80
0.219 5.125 12.51
0.258 5.047 14.63
0.281 5.001 15.87
0.312 4.939 17.51
0.344 4.875 19.19
0.375 4.813 20.80
0.500 4.563 27.06
0.625 4.313 32.99
0.750 4.063 38.59
6 6.625 0.109 6.407 7.59
0.134 6.357 9.30
0.156 6.313 10.79
0.188 6.249 12.94
0.203 6.219 13.94
0.219 6.187 15.00
0.250 6.125 17.04
0.280 6.065 18.99
0.312 6.001 21.06
0.344 5.937 23.10
0.375 5.875 25.05
0.432 5.761 28.60
0.500 5.625 32.74
0.562 5.501 36.43
0.625 5.375 40.09
0.719 5.187 45.39
0.864 4.897 53.21
1.000 4.625 60.13
1.125 4.375 66.14
ASTM/ASME A335 Gr P11 Alloy Steel Pipe Applications

ASTM A335 P11 pipes are widely used in various high-temperature applications in the power generation, petrochemical, and refining industries. Some of the common applications of these pipes include:

  1. Power Generation:ASTM A335 P11 pipes are widely used in power generation plants for the construction of boiler tubes, superheater tubes, and reheater tubes. These pipes can withstand high temperatures and pressures, making them ideal for use in high-temperature steam and gas applications.
  2. Petrochemical Industry:ASTM A335 P11 pipes are commonly used in the petrochemical industry for various applications, including furnace tubes, heat exchangers, and piping systems. These pipes can withstand high temperatures and pressures and have good corrosion resistance, making them suitable for use in harsh environments.
  3. Refining Industry:ASTM A335 P11 pipes are used in the refining industry for various applications, such as process piping, heat exchangers, and furnace tubes. These pipes can withstand high temperatures and pressures, making them ideal for use in high-temperature refining processes.
  4. Oil and Gas Industry:ASTM A335 P11 pipes are used in the oil and gas industry for various applications, such as downhole tubing, well casings, and pipelines. These pipes can withstand high pressures and temperatures, making them suitable for use in harsh oil and gas production environments.
  5. Aerospace Industry:ASTM A335 P11 pipes are also used in the aerospace industry for various applications, such as engine components, exhaust systems, and hydraulic systems. These pipes can withstand high temperatures and have good corrosion resistance, making them suitable for use in harsh aerospace environments.

Overall, ASTM A335 P11 pipes are widely used in various high-temperature and high-pressure applications in different industries due to their excellent performance and reliability.

We Supply ASTM A335 grade P11 in listed cities in India

Mumbai, Lucknow, Coimbatore, Imphal, Mysore, Ratlam, Delhi, Kanpur, Darjeeling, Jalandhar, Nagpur, Solapur, Kolkata, Allahabad, Dehradun, Jammu, Nashik, Srinagar, Chennai, Ahmedabad, Faridabad, Jamshedpur, Bhadravati, Chattisgarh, Durgapur, Asansol, Hospet, Bellary, Visakhapatnam, Nellore, Surat, Bangalore, Chandigarh, Ghaziabad, Jhansi, Patna, Siliguri, Hyderabad, Stainless Steel Pipe dealers in Salem, Amritsar, Noida, Kochi (Cochin), Mangalore, Indore, Vadodra, Bhubaneswar, Bikaner, Bhavnagar, Tirupur, Ankleshwar, Warangal, Agartala, Thoothukudi, Stainless Steel Pipe suppliers in Pune, Thiruvanthapuram, Jaipur, Aizawl, Guwahati, Kozhikode, Raipur, Vishakhapatnam, Jabalpur, Bhopal, Gwalior, Ludhiana, Rajahmundry, Thane, Agra, Bhubaneshwar, Gurgaon, Madurai, Rajkot, Varanasi, Bhilai, Haridwar, Meerut, Ranchi, Ahmednagar, Akola, Amravati, Aurangabad, Baramati, Beed, Bhandara, Bhiwandi, Buldhana, Chandrapur, Chimur, Dahanu, Dhule, Dindori, Erandol, Gadchiroli, Hatkanangle, Hingoli, Ichalkaranji, Jalgaon, Jalna, Karad, Khed, Yavatmal, Kolaba, Kolhapur, Kopargaon, Latur, Malegaon, Mumbai, Nagpur, Nanded, Nandurbar, Nashik, Osmanabad, Pandharpur, Parbhani, Rajapur, Ramtek, Ratnagiri, Raver, Sangli, Satara, Shirdi, Shirur, Solapur, Thane, Wardha, Washim, Andhra Pradesh, Jammu and Kashmir, Nagaland, Uttarakhand, Haryana, Lakshadweep, Arunachal Pradesh, Jharkhand, Odisha, West Bengal, Himachal Pradesh, Assam, Karnataka, Punjab, Andaman and Nicobar Islands, Puducherry, Bihar, Kerala, Rajasthan, Chandigarh, Meghalaya, Chhattisgarh, Madhya Pradesh, Sikkim, Dadar and Nagar Haveli, Mizoram, Goa, Maharashtra, Tamil Nadu, Daman and Diu, Tripura, Gujarat, Manipur, Telangana, Delhi, Uttar Pradesh in India.

We Export ASTM A335 grade P11 in listed Country

United States of America, Malaysia, UAE, Indonesia, Saudi Arabia, Iran, Qatar, India, China, United Kingdom, Singapore, Canada, Thailand, South Korea, Turkey, Philippines, Egypt, Germany, Italy, Japan, Russia, Vietnam, Australia, South Africa, Portugal, Morocco, Costa Rica, Kazakhstan, Netherlands, Mexico, Brazil, France, Spain, Taiwan, Nigeria, Bangladesh, Kuwait, Iraq, Ukraine, Poland, Jordan, Romania, Oman, Hong Kong, Venezuela, Colombia, Norway, Chile, Trinidad & Tobago, Greece, Czechia, Belgium, Sri Lanka, Cyprus, Angola, Myanmar (Burma), United Kingdom, Canada, South Korea, Thailand, Netherlands, Spain, Turkey, Australia, Mexico, Pakistan, Vietnam, Brazil, Philippines, France, Taiwan, Poland, South Africa, Russia, Nigeria, Kuwait, Czechia, Norway, Romania, Egypt, Oman, Sweden, Belgium, Hong Kong, Israel, Colombia, Switzerland, Denmark, Finland, Argentina, Venezuela, Peru, Ukraine, Chile, Bangladesh, Portugal, Ireland, Austria, Algeria, Greece, Iraq, New Zealand, Slovakia, Hungary, Kazakhstan, Slovenia, Lithuania, Serbia, Sri Lanka, Bahrain, Bulgaria, Morocco, Tunisia, Croatia, Jordan, Ecuador, Trinidad & Tobago, Estonia, Azerbaijan, Ghana, Lebanon, Cyprus, Dominican Republic, Latvia, Libya, Costa Rica, Cambodia, Macedonia (FYROM), Belarus, Jamaica, Palestine, Turkmenistan

Our Products
Our Main Market