ASTM A213 T11 Chrome Moly Seamless Tube (1.25Cr-0.5Mo)

ASME SA213 Grade T11 alloy steel boiler, superheater and heat-exchanger tubing


ASTM A213 T11 alloy steel seamless tubes for boiler waterwall and economiser service

Savoy Piping Inc. supplies ASTM A213 T11 / ASME SA213 Grade T11 seamless chrome moly tubes — the familiar 1.25Cr-0.5Mo grade that underpins a large share of thermal power boiler and HRSG tubing in India and export markets.

When boiler makers ask for “T11 tubes,” they usually mean waterwall, economiser or intermediate-temperature heat-transfer tubing where carbon steel runs out of strength and oxidation resistance, but full 2.25Cr or 9Cr CSEF material is not yet required. That is the practical home of T11.

What buyers check first: OD and wall (min / avg), normalised-and-tempered condition, hydrostatic or NDE status, and — for Indian boiler jobs — SA213 T11 with IBR Form III-C plus EN 10204 3.1 / 3.2 MTCs.

Related grades: T5, T9, T22, T91, and matching pipe ASTM A335 P11.

ASTM A213 T11 Alloy Steel Seamless Pipe Range

A213 T11 Alloy Steel Seamless Tubes Specification ASTM A213 / ASME SA213
A213 T11 Alloy Steel Seamless Tubes Grades ASTM A213 T5, ASTM A213 T9, ASTM A213 T11, ASTM A213 T22, ASTM A213 T91, ASME SA213 T5, ASME SA213 T9, ASME SA213 T11, ASME SA213 T22, ASME SA213 T91
A213 T11 Alloy Steel Seamless Tubes Type Seamless - Hot Rolled / Cold Drawn
A213 T11 Alloy Steel Seamless Tubes Outer Diameter Size A213 - 3/8" NB to 30" NB (Nominal Bore Size)
A213 T11 Alloy Steel Seamless Tubes Wall Thickness Schedule 20 to Schedule XXS (Heavier On Request) Up to 250 mm Thickness
A213 T11 Alloy Steel Seamless Tubes Length 5 to 7 Meters, 09 to 13 Meters, Single Random Length, Double Random Length And Customize Size.
A213 T11 Alloy Steel Seamless Tubes Pipe Ends Plain Ends / Beveled Ends / Coupling
A213 T11 Alloy Steel Seamless Tubes Delivery Conditions As Rolled, Cold Drawn, Normalizing Rolled, Thermomechanical Rolled / Formed, Normalizing Formed, Normalized and Tempered / Quenched and Tempered - BR / N / Q /T
A213 T11 Alloy Steel Seamless Tubes Coating Epoxy Coating / Colour Paint Coating / 3LPE Coating.
A213 T11 Alloy Steel Seamless Tubes Other Testing Tensile Test, Transverse Tension Tests, Flattening Test, Metal Structure and Etching Tests, Photomicrographs, Hardness Tests, etc.
A213 T11 Alloy Steel Seamless Tubes Dimension All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM, ASME, API.
A213 T11 Alloy Steel Seamless Tubes Value Added Services Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Galavanizing / Heat Treatment
A213 T11 Alloy Steel Seamless Tubes Packaging Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector
A213 T11 Alloy Steel Seamless Tubes 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 / 4 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes
A213 T11 Alloy Steel Seamless Tubes 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

What is ASTM A213 T11 tube?

ASTM A213 / ASME SA213 Grade T11 is seamless ferritic alloy-steel tubing for boilers, superheaters and heat exchangers. Composition is approximately 1.25% chromium and 0.5% molybdenum — the tube counterpart to A335 P11 pipe.

T11 balances elevated-temperature strength, weldability and cost, which is why it remains one of the most widely procured chrome moly boiler tube grades. Always confirm design metal temperature and allowable stresses against the applicable boiler code; T11 is not automatically interchangeable with T22 or T91.

Typical applications of ASTM A213 T11 tube

  • Boiler waterwall and generating bank tubes in subcritical plants
  • Economiser tubes in coal-fired boilers and HRSGs
  • Intermediate-temperature superheater / reheater sections where 1.25Cr-0.5Mo is classed
  • Heat-exchanger tubing for elevated-temperature process service
  • Matched Cr-Mo packages with A335 P11 headers and piping

T11 vs T22 — which grade for boiler tubes?

T11 (1.25Cr-0.5Mo) is the everyday chrome moly tube for many waterwall, economiser and intermediate boiler sections. T22 (2.25Cr-1Mo) is preferred as metal temperatures climb in hotter superheater / reheater duties. For supercritical CSEF steam tubes, designs move to T91. Matching pipe: A335 P11 / P22.

ASTM A213 T11 Alloy Steel Seamless Tubes chemical compositions

Composition, %
Grade UNS Designation Carbon Manganese Phosporus Sulphur Silicon Nickel Chromium Molybdenum Vanadium Niobium Aluminium Other Elements
T5 K4154 0.15 0.30-0.60 0.025 0.025 0.50 4.00-6.00 0.4-0.65
T9 K90941 0.15 max 0.30-0.60 0.025 0.025 0.25-1.00 8.00-10.00 0.90-1.10
T11 K11597 0.05-0.15 0.30-0.60 0.025 0.025 0.50-1.00 1.00-1.50 0.44-0.65
T22 K2159 0.05-0.15 0.30-0.60 0.025 0.025 0.50 1.9-2.60 0.87-1.13
T91 K991 0.07-0.14 0.30-0.60 0.02 0.010 0.20-0.50 0.4 8.0-9.5 0.85-1.05 0.18-0.25 0.06-0.10 0.02 Ti 0.01 ZR 0.01

ASTM A213 T11 Seamless Tubes Permissible Variation in Wall Thickness

Hot rolled Outside Diameter, mm Tolerance, %
OD≤101.6, WT≤2.4 +40/-0
OD≤101.6, 2.4<WT≤3.8 +35/-0
OD≤101.6, 3.8<WT≤4.6 +33/-0
OD≤101.6, WT>4.6 +28/-0
OD>101.6, 2.4<WT≤3.8 +35/-0
OD>101.6, 3.8<WT≤4.6 +33/-0
OD>101.6, WT>4.6 +28/-0
Cold Drawn Outside Diameter, mm Tolerance, %
OD≤38.1 +20/-0
OD>38.1 +22/-0

ASTM A213 T11 Tubes Permissible Variations in Outside Diameter

Hot rolled Outside Diameter, mm Tolerance, mm
OD≤101.6 +0.4/-0.8
101.6<OD≤19.5 +0.4/-1.2
19.5<OD≤228.6 +0.4/-1.6
Cold Drawn Outside Diameter, mm Tolerance, mm
OD<25.4 ±0.10
25.4≤OD≤38.1 ±0.15
38.1<OD<50.8 ±0.20
50.8≤OD<63.5 ±0.25
63.5≤OD<76.2 ±0.30
76.2≤OD≤101.6 ±0.38
101.6<OD≤19.5 +0.38/-0.64
19.5<OD≤228.6 +0.38/-1.14

SUPPLEMENTARY REQUIREMENT for ASTM A213 T11 Seamless Tubes

S1. STRESS-RELIVED ANNEALED Tubes
S2. STABILIZING HEAT TREATMENT
S3. UNSTRAIGHTENED Tubes
S4. INTERNGRANULAR CORROSION TEST

Frequently asked questions — ASTM A213 T11

What is ASTM A213 T11 used for?

ASTM A213 T11 (1.25Cr-0.5Mo) seamless tubes are used for boiler, economiser, waterwall and heat-exchanger service in power and process plants where chrome moly elevated-temperature performance is required.

What is the difference between T11 and T22?

T11 is roughly 1.25Cr-0.5Mo; T22 is roughly 2.25Cr-1Mo. T22 generally offers better high-temperature strength and oxidation resistance for hotter superheater/reheater duty, while T11 remains widely used for intermediate boiler tube sections.

Do you supply IBR-certified SA213 T11 tubes?

Yes. For boiler work under Indian Boiler Regulations, we can supply ASME SA213 Grade T11 with Form III-C documentation routes, in addition to EN 10204 3.1/3.2 mill test certificates.

How does T11 tube relate to P11 pipe?

Both are ~1.25Cr-0.5Mo chrome moly products. A213 T11 is tube for boilers/heat exchangers; A335 P11 is seamless pipe for high-temperature piping. Projects often use both together in the same Cr-Mo system.

Supplying ASTM A213 T11 Alloy Steel Seamless Tubes to Countries -

We Export ASTM A213 T11 Alloy Steel Tubes 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, Myanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rico, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherlands, 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

Savoy Piping Inc. is a well known worldwide Exporter of ASTM A213 T11 Alloy Steel Seamless Tubes, Savoy Piping Inc. is committed to provide each and every customer with the highest standard of customer service. We deal in A213 T11 Alloy Steel Seamless Tubes in India and Overseas, offering a wide range of ASTM A213 T11 Alloy Steel Seamless Tubes