ASTM A335 P91 Seamless Pipe

ASME SA335 — 9Cr-1Mo-V CSEF chrome moly

Savoy Piping Inc. supplies A335 P91 seamless pipe for high-temperature power and process service.

A335 P91 main · A213 T91

Typical applications

  • Main steam / hot reheat piping
  • High-temperature process headers
  • CSEF power-plant systems

Selection guidance

Confirm heat treatment condition and welding procedure before purchase.


Alloy Steel P91 Pipes Tube Range

Specifications ASTM A 335 ASME SA 335
Dimensions ASTM, ASME and API
Size 1/8″NB TO 30″NB IN
Schedule SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Thickness 0.3mm – 50 mm
Type Seamless / Stainless Steel / EFW / Fabricante
Form Round, Hydraulic Etc
Length Single Random, Double Random & Cut Length.
En Plain End, Beveled End, Treade

Chemical Composition of Alloy Steel P91 Pipes

Grade P91 C, % Mn, % P, % S, % Si, % Cr, % Mo, %
UNS K91560 0.08-0.12 0.30-0.60 0.020 max 0.010 max 0.20 -0.50 8.00 - 9.50 0.85 - 1.05

Mechanical Properties of Alloy Steel P91 Pipes

Tensile Strength, MPa Yield Strength, MPa Elongation, %
585 min 415 min 20 min

Other Types of Alloy Steel P91 Pipes

AS Seamless Pipe & Tube Alloy Steel Seamless Pipe & Tube
ASTM A335 Alloy Steel Seamless Pipes ASME SA335 Alloy Steel Seamless Tube
AS Welded Pipe & Tube Alloy Steel Welded Pipe & Tube
ASTM A335 Alloy Steel Welded Pipes ASTM A691 Alloy Steel Welded Tubes
Alloy Steel Round Pipe & Tube AS Round Pipe & Tube
ASTM A691 Alloy Steel Round Pipes ASTM A335 Alloy Steel Round Tubes
AS Square Pipes & Tubes Alloy Steel Square Pipe & Tube
ASTM A691 Alloy Steel Square Pipes ASME SA691 Alloy Steel Square Tube
AS Rectangular Pipe & Tube Alloy Steel Rectangular Pipes & Tubes
ASTM A335 Alloy Steel Rectangular Pipes ASTM A691 Alloy Steel Rectangular Tubes
AS Custom Pipe Alloy Steel Custom Pipe
Alloy Steel Polished Pipe & Tube AS Polished Pipe & Tube
ASTM A691 Alloy Steel Polished Pipes ASTM A335 Alloy Steel Polish Tube
AS Decorative Pipe & Tube Alloy Steel Decorative Pipe & Tube
ASTM A335 Alloy Steel Decorative Pipes ASTM A691 Alloy Steel Decorative Tubes
AS Sanitary Tubes Alloy Steel Sanitary Tube
ASTM A691 Alloy Steel Custom Pipes ASTM A691 Alloy Steel Sanitary Tubes
AS Thick Wall Pipe Alloy Steel Thin Wall Pipe
ASTM A335 Alloy Steel Electropolished Pipes AS Instrumentation Tubes
Alloy Steel Heat exchanger Tubes ASTM A691 Alloy Steel Bright Annealing Tube

Other Grade Alloy Steel P91 Pipes in Ready Stock for Urgent Deliveries

  • Alloy Steel P1 Pipe
  • Alloy Steel P5 Pipe
  • Alloy Steel P9 Pipe
  • Alloy Steel P11 Pipe
  • Alloy Steel P12 Pipe
  • Alloy Steel P17 Pipe
  • Alloy Steel P22 Pipe
  • Alloy Steel P91 Pipe

Alloy Steel P91 Pipes Application Industries

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


We Export To

Russia, Algiers, Antananarivo, Mbuji-Mayi, Subra al-Haymah, Nairobi, Bulawayo, London, Fez, Algeria, Maiduguri, Giza, Port Elizabeth, New Zealand, Johannesburg, Indonesia, Italy, Colombo, Ghana, Mozambique, Colombia, Qatar, Argentina, Zaria, Pretoria, Freetown, Khartoum, South Africa, Lagos, Bahrain, Turkey, Australia, Angola, United States, Douala, Kampala, Luanda, Hong Kong, Azerbaijan, Conakry, Kuwait, Casablanca, Tunisia, Abu Dhabi, Houston, Peru, Ethiopa, Kolwezi, Kaduna, Oman, UK, Israel, Dar es Salaam, Mogadishu, Alexandria, Saudi Arabia, Accra, Kinshasa, Abidjan, Yemen, Africa, Cairo, Cameroon, Brazil, Chine, Venezuela, Vietnam, Ouagadougou, Iran, Brazzaville, Addis Ababa, Dubai, Jordan, Thailand (Bangkok), Trinidad and Tobago, Tripoli, Cape Town, Uganda, Cyprus, Nigeria, Soweto, New York, Democratic Republic of the Congo, Omdurman, Mexico, Morocco, Egypt, Singapore, Iraq, Sri Lanka, Bamako, Harare, Durban, Kazakhstan, Yaoundé, Lubumbashi, Maputo, Germany, Ibadan, Benin, Malaysia, UAE, Sudan, Rabat, Lebanon, Port Harcourt, Canada, Kano.


We Supply To

Bhiwadi, Abu Dhabi, Hyderabad, Suryapet, Yemen, Ghana, Tadepalligudem, Tripura, Durban, Subra al-Haymah, Rabat, India, Conakry, Benin, Maharashtra, Uganda, Miryalaguda, Cairo, Angola, Benin, Port Harcourt, Nairobi, Cameroon, Antananarivo, Freetown, Jaipur, Lucknow, Hong Kong, Pune, Casablanca, Mumbai, Mozambique, Zaria, Kolkata, Ethiopa, Mizoram, Singapore, Karnataka, Bulawayo, Algeria, Ballia, Dar es Salaam, Venezuela, Cyprus, Mogadishu, Colombo, Surat, Port Elizabeth, Tripoli, Abidjan, Oman, New York, Bundi, Lagos, Thailand (Bangkok), Kano, Kolwezi, Addis Ababa, Buxar, Soweto, Cape Town, Baraut, Udgir, Betul, Kinshasa, Fez, Lubumbashi, Alexandria, Kerala, Ibadan, Khartoum, Manipur, Nagapattinam, Douala, Sadar, Democratic Republic of the Congo, Algiers, Bansberia, Jamalpur, Kaduna, Mbuji-Mayi, Bangalore, Maiduguri, Jordan, Morocco, Harare, Qatar, Ahmedabad, Lebanon, Chennai, Luanda, Kampala, Russia, Dakar, Maputo, Yaoundé, Accra, Johannesburg, Andhra Pradesh, Giza, Omdurman, Ambala, Puducherry, Ouagadougou, Bamako, Pretoria, Brazzaville, Muktsar, Delhi.


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Frequently asked questions — ASTM A335 P91 Pipe

What is P91?

A modified 9Cr-1Mo-V CSEF alloy steel seamless pipe grade for high-temperature creep strength.

Related tube?

ASTM A213 T91 is the common boiler/HX tube twin.

Fabrication note?

Requires qualified CSEF welding/heat-treatment procedures.

Main page?

See our primary A335 P91 supplier page for full chemistry tables.