ASTM A691 91 Pipe, ASME SA691 91 Pipe, A691 91 EFW Pipe, A691 91 Alloy Steel Pipe, P91 Welded Pipe.
Manufacturing Alloy Steel EFW Pipes in ASTM A691 91. ASME SA691 91 Pipe, IBR Approved, Dealer, Distributor, Exporter, Supplier in India.
ASTM A691 Grade 91 is a specification standard developed by the American Society for Testing and Materials (ASTM) for electric-fusion-welded steel pipes. Specifically, ASTM A691 Grade 91 pertains to high-strength, low-alloy (HSLA) steel pipes used in various industrial applications, including but not limited to, oil and gas transportation, power generation, and chemical processing. These pipes are designed to withstand high-temperature and high-pressure conditions, making them suitable for critical service applications.
Valour Alloy Inc., we carry a full inventory of ASTM A691 Grade 91 Pipe and Supply ASTM A691 Grade 91 Pipe products in a variety of sizes to meet the High temperature service requirements for applications the Power Plants, Petro Chemical Plants and Refineries industries. Alloy Steel EFW Pipe steel pipe can be structural in nature or used in fluid and oil transmission.
We are specializes in ASTM A691 Grade 91 Pipe with years of Experience in Manufacturing ASTM A691 Grade 91 Pipe. we offer high quality, lower cost but the best service. As a result to that our Alloy Steel EFW Pipes export account today is in various countries like Iran, Iraq, Kuwait, Saudi Arabia, Oman, UAE, Singapore, Malaysia, Indonesia, South korea, Chile, Peru, Venezuela, Australia, Nigeria, Angola, Senegal, Mozambique, Algeria, Libya, Azerbaijan, Netherlands, Brazil, Norway, United Kingdom, Mexico, Canada etc.

ASTM A691 Grade 91 Pipe Manufacturer

ASTM A691 Grade 91 Pipe Exporter
We Supply Alloy Steel EFW Pipes and Tubes in ASTM A335 Grade P5, ASTM A335 Grade P9, ASTM A335 Grade P11, ASTM A335 Grade P22, ASTM A335 Grade P91, ASTM A213 Grade T5, ASTM A213 Grade T9, ASTM A213 Grade T11, ASTM A213 Grade T22, ASTM A213 Grade T91. The grade indicates the testing methods required for a given application. It is critical that structural grades of Carbon Steel Pipe not be used for Pressure or Fluid applications.
PED 2014/68/EU approved ASTM A691 91 Pipe suppliers offers ASME SA 335 welded pipe for boilers and high temperature applications, Manufacturer of large size fabricated AS Welded Pipes & Seamless Alloy Steel Pipes in Mumbai, Boiler pipe material according to ASTM A335, ISO 15156-2, NACE MR0175 standards
Material Composition: ASTM A691 Grade 91 pipes are made from a specific type of HSLA steel known as Grade 91 steel. This steel contains a well-balanced combination of alloying elements, including chromium, molybdenum, vanadium, and niobium. These alloying elements enhance the strength, corrosion resistance, and high-temperature performance of the pipes.
Manufacturing Process: These pipes are manufactured using the electric-fusion-welding (EFW) process. In this method, the steel is melted and fused together to create a seamless and homogenous pipe. This manufacturing process ensures the pipes' durability and integrity, making them suitable for demanding applications.
Size and Dimensions: ASTM A691 Grade 91 pipes are available in various sizes and dimensions to meet different project requirements. The standard covers a range of nominal pipe sizes, wall thicknesses, and lengths.
Standards Compliance: These pipes adhere to ASTM A691 standards, ensuring quality, consistency, and reliability. They are manufactured to meet strict specifications and undergo rigorous testing to ensure they meet industry standards for strength, toughness, and resistance to corrosion and high temperatures.
Weldability: ASTM A691 Grade 91 steel has excellent weldability properties, making it suitable for various welding processes, including submerged arc welding and manual welding methods. Proper welding procedures and techniques must be followed to maintain the integrity of the pipes.
ASTM A691 Grade 91 pipes are high-strength, low-alloy steel pipes designed to withstand extreme temperatures and pressures. They find extensive use in industries where safety, durability, and performance in harsh conditions are critical. These pipes are manufactured to stringent standards and offer a reliable solution for various industrial applications.
ASTM A691 91 Pipe Range
ASTM A691 91 Pipe Specification | ASTM A691 / ASME SA691 |
ASTM A691 91 Pipe Grades | ASTM A691 1-1/4CR, ASTM A691 2-1/4CR, ASTM A691 3CR, ASTM A691 5CR, ASTM A691 9CR, ASTM A691 91, ASME SA691 1-1/4CR, ASME SA691 2-1/4CR, ASME SA691 3CR, ASME SA691 5CR, ASME SA691 9CR, ASME SA691 91, P5, P9, P11, P22, P91 |
ASTM A691 91 Pipe Type | EFW(ELECTRIC FUSION WELDED PIPES) |
ASTM A691 91 Pipe Class Designation | CLASS 10, 11, 12, 13, 20, 21, 22, 23, 30, 31, 32, 33, 40, 41, 42, 43 |
ASTM A691 91 PipeOuter Diameter Size | 16" NB To 100" NB (Nominal Bore Size) |
ASTM A691 91 Pipe Wall Thickness | Schedule 20 To Schedule XXS (Heavier On Request) Up to 75 mm Thickness |
ASTM A691 91 Pipe Length | 5 To 7 Meters, 09 To 13 Meters, Single Random Length, Double Random Length And Customize Size. |
ASTM A691 91 Pipe Ends | Plain Ends / Beveled Ends / Coupling |
ASTM A691 91 Pipe Delivery Conditions | As Rolled, Normalizing Rolled, Thermomechanical Rolled / Formed, Normalizing Formed, Normalized and Tempered / Quenched and Tempered - BR / N / Q /T |
ASTM A691 91 Pipe Coating | Epoxy Coating / Colour Paint Coating / 3LPE Coating. |
ASTM A691 91 Pipe Other Testing | NACE MR0175, NACE TM0177, NACE TM0284, Charpy V-Notch Test, Radiographic Examination, XRAY, Ultrasonic EXAMINATION, Liquid Penetrant, Magnetic Particle, HIC Test, SSC Test, SWC, H2 Service, IBR, PWHT Etc. |
ASTM A691 91 Pipe Dimension | All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM, ASME, API. |
ASTM A691 91 Pipe Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Galavanizing / Heat Treatment |
ASTM A691 91 Pipe Packaging | Loose / Bundle / Wooden Pallet / Wooden Box / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
ASTM A691 91 Pipe Material Test Certificate | Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC |
ASTM A691 91 Pipes Shipment & Transportation | By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes |
ASTM A691 91 Alloy Steel EFW Pipes Class Designation
Class | Heat Treatment on Pipe | Radiography, see Section | Pressure Test, see: |
A691 / SA691 91 EFW Pipe Class 10 | none | none | none |
A691 / SA691 91 EFW Pipe Class 11 | none | 9 | none |
A691 / SA691 91 EFW Pipe Class 12 | none | 9 | 8.3 |
A691 / SA691 91 EFW Pipe Class 13 | none | none | 8.3 |
A691 / SA691 91 EFW Pipe Class 20 | stress relieved, see 5.3.1 | none | none |
A691 / SA691 91 EFW Pipe Class 21 | stress relieved, see 5.3.1 | 9 | none |
A691 / SA691 91 EFW Pipe Class 22 | stress relieved, see 5.3.1 | 9 | 8.3 |
A691 / SA691 91 EFW Pipe Class 23 | stress relieved, see 5.3.1 | none | 8.3 |
A691 / SA691 91 EFW Pipe Class 30 | normalized, see 5.3.2 | none | none |
A691 / SA691 91 EFW Pipe Class 31 | normalized, see 5.3.2 | 9 | none |
A691 / SA691 91 EFW Pipe Class 32 | normalized, see 5.3.2 | 9 | 8.3 |
A691 / SA691 91 EFW Pipe Class 33 | normalized, see 5.3.2 | none | 8.3 |
A691 / SA691 91 EFW Pipe Class 40 | normalized and tempered, see 5.3.3 | none | none |
A691 / SA691 91 EFW Pipe Class 41 | normalized and tempered, see 5.3.3 | 9 | none |
A691 / SA691 91 EFW Pipe Class 42 | normalized and tempered, see 5.3.3 | 9 | 8.3 |
A691 / SA691 91 EFW Pipe Class 43 | normalized and tempered, see 5.3.3 | none | 8.3 |
ASTM A691 91 Pipe Manufacturing Plate Material
Product analysis of plate: The pipe manufacturer shall make an analysis of each mill heat of plate material. The product analysis shall meet the requirements of the plate specification to which the material was ordered.
Product analysis of weld: The pipe manufacturer shall make an analysis of the finished deposited weld material from each 200 feet or fraction thereof. Analysis shall conform to the welding procedure for deposited weld material.
Pipe Grade | Type of Steel | ASTM Specification | HB, max A | |
Number | Grade | |||
1-1/4 CR | 1-1/4 % chromium, 1/2 % molybdenum steel | A 387/ A 387M | 11 | 201 |
2-1/4 CR | 2-1/2 % chromium, 1 % molybdenum steel | A 387/ A 387M | 22 | 201 |
5CR | 5 % chromium, 1/2 % molybdenum steel | A 387/ A 387M | 5 | 225 |
9CR | 9 % chromium, 1 % molybdenum steel | A 387/ A 387M | 9 | 241 |
91 | 91 % chromium, 1 % molybdenum steel | A 387/ A 387M | 91 | 241 |
ASTM A691 91 EFW Pipe Heat Treatment Parameters
Pipe Grade | ASTM Specification | Post-Weld Heat-Treat Temperature Range (Strees Relieving), F ( C ) |
Normalizing Temperature, max unless otherwise noted, F ( C ) |
Quenching Temperature, max unless otherwise noted, F ( C ) |
Tempering Temperature, min, F ( C ) |
1-1/4 CR | A387 / A387M | 1100 to 1375 (590 to 745) | 182 (1010) | 1700 (925) | 1150 to 1375 (620 to 745) |
2-1/4 CR | A387 / A387M | 1200 to 1400 (650 to 760) | 183 (1010) | 1700 (925) | 1250 to1400 (675 to 760) |
5CR | A387 / A387M | 1200 to 1400 (650 to 760) | 185 (1010) | 1700 (925) | 1300 to 1400 (705 to 760) |
9CR | A387 / A387M | 1325 to 1375 (715 to 745) | B | … | 1325 to 1375 (715 to 745) |
91 | A387 / A387M | 1350 to 1420 (730 to 770) | 1350 to 1420 (730 to 770) | 1900 min (1040 min) | 1350 to 1440 (730 to 780) |
Other Available Products of ASTM A691 91 Pipe
ASTM A691 9CR CR Alloy Steel Seamless Pipes | ASME SA 691 9CR CR Pipes |
ASTM A691 9CR CR Alloy Steel EFW Pipes | ASTM A691 9CR CR Pipes |
ASTM A691 9CR CR Alloy Steel Welded Pipes | 9CR CR A691 Alloy Steel Piping |
ASTM A691 9CR CR Ferritic Alloy Steel Pipes | A691 9CR CR Alloy Steel Fabricated Pipes |
Alloy Steel A691 9CR CR High Pressure Pipes | A691 9CR CR High Temperature Alloy Steel Pipes |
ASTM A691 9CR CR Chrome Moly Alloy Pipes | ASTM A691 9CR CR Alloy Steel SAW Pipes |
ASTM A691 9CR CR Alloy Steel Round Pipes | ASTM A691 9CR CR Alloy Steel LSAW Pipes |
ASTM A691 9CR CR Alloy Steel Rectangular Pipes | ASTM A691 9CR CR Alloy Steel Square Pipes |
9CR CR A691 Alloy Steel Pipes | ASTM A691 9CR CR Chrome Moly Pipes |
A691 9CR CR Alloy Steel EFW Pipes for High-Pressure Service at High Temperatures | ASTM A691 9CR CR AS Pipes |
ASTM A691 91 Pipe Application
- Oil and Gas equipments
- Offshore Technology
- Seawater Desalination Plants
- Chemical Industry
- Airport, Malls, Buildings
- Storage Tanks
- Medical Industry
- Civil Engineering
- Pressure vessels, Reactor tanks, and Heat exchangers
- Rotors, impellers and shafts
- Power Plants
- Petrochemical
- Shipbuilding Industry
- Mining Industry
- Food Equipments Industry
Test Certificates
We ASTM A691 Grade 91 Pipe with the following details Mill Test Certificate according to EN 10204 3.1, PMI Test, Test Report from NABL Approved Lab, 3.2 Certification by External Testing Authority third, ultrasonic test report, and X-ray report.
Quality Assurance
At ASTM A691 Grade 91 Pipe all types of Such as 3CR, 5CR, 9CR, 91 from raw material purchase to production and product shipping. They are visually inspected for compliance with ASTM, ASME, DIN, EN and JIS codes and standards. We can also designate certified official testing agencies upon customer request so that they can witness the product's material, size and quality compliance reports.
Marking & Packing
Our ASTM A691 Grade 91 Pipe is packaged to ensure no damage during transit. In the case of export, the standard export packing is in a wooden box. All ASTM A691 Grade 91 Pipe are marked with our grade, batch number, size and mark. We can also do custom branding on our products as per buyer's unique requirements
Supplying ASTM A691 91 Pipe to Countries -
We Export ASTM A691 91 Pipe to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East Etc.
Distributing ASTM A691 91 Pipe to Cities -
We Export ASTM A691 91 Pipe to Navi Mumbai, Indore, Baroda, Muscat, Secunderabad, Gimhae-si, Kanpur, Colombo, Kuala Lumpur, Bhopal, Pimpri-Chinchwad, Rajkot, Haryana, Hanoi, Ernakulam, Chandigarh, Surat, Los Angeles, Hong Kong, Ahmedabad, Perth, Petaling Jaya, Hyderabad, Mumbai, Algiers, Edmonton, Ludhiana, Ho Chi Minh City, Karachi, Bangkok, Dallas, Bengaluru, Jakarta, Granada, Seoul, Cairo, Geoje-si, Rio de Janeiro, Abu Dhabi, Port-of-Spain, Sydney, London, Courbevoie, Vung Tau, Sharjah, Jaipur, Lahore, Chennai, Istanbul, Lagos, Thane, Dubai, Coimbatore, La Victoria, Calgary, Jeddah, Busan, Mexico City, Al Khobar, Caracas, Singapore, Atyrau, Manama, Kolkata, Riyadh, Jamshedpur, Brisbane, Toronto, Noida, Ahvaz, Vadodara, Doha, Visakhapatnam, Ulsan, New Delhi, Gurgaon, Bogota, Howrah, Moscow, Nashik, Ranchi, Nagpur, Al Jubail, Houston, Milan, Chiyoda, Aberdeen, Melbourne, New York, Dammam, Montreal, Santiago, Kuwait City, Pune, Tehran, Thiruvananthapuram, Faridabad, Madrid, Ankara Etc.
Frequently Ask Questions (FAQ)
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