SA213
/glossary/sa213ASME specification for seamless ferritic and austenitic alloy steel boiler tubes.
SA213 is the ASME call-out for seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes. Kanpur buyers at Panki and UP sugar mills specify T11 (1.25Cr-0.5Mo) and T22 (2.25Cr-1Mo). IBR tubes take Form III-B; Form III-C covers boiler mountings and fittings, not the tube itself. ASTM A213/A213M-25, public scope 1.3, usually furnishes 3.2 mm ID to 127 mm OD. Quotes from RP Sales are ex-warehouse Kanpur, GST 18% extra as the budgeting basis; the tax invoice applies the rate in force.
In detail
SA-213 is the ASME specification for seamless ferritic and austenitic alloy steel boiler, superheater, and heat-exchanger tubes. It covers multiple grades including T11 (1.25Cr-0.5Mo), T12 (1Cr-0.5Mo), and T22 (2.25Cr-1Mo). The standard mandates stringent chemical analysis, mechanical testing, and non-destructive examination, making it essential for superheater and reheater tubes in thermal power stations and high-pressure process plants.
What SA213 is, and what it is not
SA213 is a tube specification, not a pipe specification. Indian RFQs write SA213 or SA-213; the ASTM publication is A213/A213M. The active ASTM store listing retrieved 2026-09-03 is ASTM A213/A213M-25, titled Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes.
Public scope 1.1 of that page covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes, designated Grades T5, TP304, and the steels listed in Tables 1 and 2. The public abstract names T5 and TP304 as examples. It does not print T11 or T22 chemistry on the free page. Grade names T11 (1.25Cr-0.5Mo), T12 (1Cr-0.5Mo), and T22 (2.25Cr-1Mo) are the call-outs already used on this site.
The tubes shall be made by the seamless process and shall be either hot finished or cold finished, as specified (ASTM A213/A213M-25 abstract). Grade TP347HFG shall be cold finished. Heat treatment is separate from heating for hot forming. Ferritic alloy and ferritic stainless steels shall be reheated. Austenitic stainless tubes shall be furnished in the heat-treated condition.
SA213 is not ASTM A106 / ASME SA-106 pipe, not SA192 minimum-wall carbon boiler tube, and not SA210 medium-carbon boiler tube. It is not ERW under IS 1239. It is not a welded superheater tube. Commodity MS pipe from the Kanpur yard does not become SA213 by adding an MTC.
Buying SA213 tube in Kanpur
Panki industrial estate sits about 12 km from the Bartan Bazar stockyard. Fabricators there take SA213 T11 and T22 for superheater bundles, almost always against an ITP with stage-wise inspection and IBR Form III-B on the tube heats. See seamless boiler tubes in Kanpur and steel pipes in Kanpur.
Dada Nagar, about 8 km away, is process-heater and waste-heat work. Jajmau, about 10 km away, runs lower-pressure steam for hide processing and is mostly SA192. The largest off-Kanpur stream is the Bundelkhand and central-UP sugar belt. Those mills buy SA210 Gr A1 in water-wall sizes and step up to SA213 T11 on superheater sections of co-generation boilers.
RP Sales dispatches daily from Kanpur across Uttar Pradesh, Bihar, Madhya Pradesh, Delhi NCR, and Uttarakhand. Intra-Kanpur runs to Panki, Dada Nagar, and Jajmau leave from the Bartan Bazar / Basanti Nagar (208014) yard.
The Kanpur steel market at Bartan Bazar / Basanti Nagar (208014) is the IBR-grade niche. Alloy seamless is mill-direct more often than yard stock. Ask the quotation to state the TPI and IBR inspection windows; they add to the mill date.
Who should specify T11, T12, or T22
Specify SA213 when the approved drawing names chrome-moly tube. The metal-temperature limit comes from the allowable-stress tables of the purchased ASME Section II-D edition, not from this page. The drawing grade wins over a trade nickname.
T11 is the entry alloy: 1.25Cr-0.5Mo. T12 is 1Cr-0.5Mo. T22 is 2.25Cr-1Mo. Substitution between T11, T12, and T22 changes allowable-stress calculations and needs designer approval. Do not swap SA210 for T22 because the yard has carbon stock.
Mechanical properties already tabulated for T11 and T22 on the SA213 standard page: yield 205 MPa min, tensile 415 MPa min, elongation 30% min. Ferritic grades are normalized and tempered. IBR Form III-B for alloy tubes must show Cr and Mo product analysis, heat-treatment cycle, and hardness.
Do not specify SA213 for IS 1239 water lines, GI plumbing, fire hydrants, or borewell casing. Those duties use IS 1239, galvanised pipe, or IS 3589. Do not specify SA213 as NPS × schedule pipe; order boiler tubes by OD and wall.
SA213 grade comparison for Kanpur boiler RFQs
Use the table to match the drawing grade to the nominal alloy before the PO. Chemistry is the 1.25Cr-0.5Mo / 1Cr-0.5Mo / 2.25Cr-1Mo set already used on this site. The table contains the typical use and the usual furnished size from ASTM A213/A213M-25 public scope 1.3; do not infer a design temperature from it.
| Grade | Nominal alloy | Typical use | Usual furnished size (ASTM 1.3) |
|---|---|---|---|
| SA213 T11 | 1.25Cr-0.5Mo | Superheaters, reheaters | 3.2 mm ID to 127 mm OD |
| SA213 T12 | 1Cr-0.5Mo | Superheaters | 3.2 mm ID to 127 mm OD |
| SA213 T22 | 2.25Cr-1Mo | High-temp superheaters | 3.2 mm ID to 127 mm OD |
| SA210 Gr A1 | Medium-carbon CS | Boilers, superheaters (carbon) | Order as SA210, not SA213 |
| SA192 | Carbon, min-wall | Stationary boilers | Order as SA192, not SA213 |
Wall thickness usually furnished to ASTM A213/A213M-25 scope 1.3 is 0.4 to 12.7 mm minimum wall, or average wall if the order says so. Other diameters may be furnished if they meet the rest of the specification. Confirm the drawing OD × wall before asking the mill for a non-standard size.
How to specify SA213 on an RFQ
Write the RFQ as a tube line, not a pipe line. Attach the boiler drawing or the superheater schedule. Use the SA213 T11/T22 seamless guide to prepare the grade, inspection, and document lines. RP Sales responds to RFQs within 4 working hours with a technical and commercial offer.
- Standard: ASME SA-213 / ASTM A213, grade T11, T12, or T22 as on the drawing. Do not write "alloy boiler tube" alone.
- Size: OD and minimum wall in mm (not NB × class, not NPS × schedule). Usual furnished range 3.2 mm ID to 127 mm OD, wall 0.4 to 12.7 mm.
- Process: seamless, hot-finished or cold-finished as specified. End finish: plain end or bevel for welding.
- Length: SRL 4-7 m, DRL 7-14 m, or cut-to-length. Quantity in metres and MT.
- Heat treatment: normalized and tempered for ferritic T11/T12/T22. Ask for the cycle on the MTC.
- Tests: tension, hardness, flattening, flaring, and either hydrostatic or nondestructive electric test (ASTM A213/A213M-25 abstract).
- Documents: EN 10204 3.1 MTC as standard; 3.2 when TPI is named. IBR Form III-B for tubes; Form III-C only when the line is a boiler mounting or fitting. Heat number on tube and challan.
- Inspection: TPI by SGS, Bureau Veritas, Lloyds, or TUV is coordinated at the Kanpur yard when the RFQ names it, or the buyer-nominated IBR Inspecting Authority.
- Delivery: ex-warehouse Kanpur or FOR destination. GST 18% extra. Packing: end caps, labelled bundles, heat identity preserved.
Worked mass example for a T11 / T22 size
Theoretical plain-end steel mass uses W = (OD − t) × t × 0.02466 kg/m, with OD and wall in millimetres. The constant 0.02466 is π × 7850 / 1,000,000 for carbon steel at 7850 kg/m³. Alloy density is close enough for a dispatch estimate; the mill weighs the bundle.
Take OD 50.8 mm and wall 3.6 mm, a row already on the boiler tube price list (SA192 / SA210 A1 / SA210 C columns; SA213 is indent, not a listed band). W = (50.8 − 3.6) × 3.6 × 0.02466 = 47.2 × 3.6 × 0.02466 = 4.19 kg/m. A 6 m length is 25.14 kg.
The boiler tube price list has no ₹/kg band for SA213 T11 or T22; these alloy grades are available on indent, so send OD, wall, grade, and quantity for an indent quotation. SA210 A1 at 50.8 × 3.6 mm is ₹118-142 per kg ex-warehouse Kanpur as of 24 May 2026, GST 18% extra. Do not treat that carbon band as a T22 quote.
The glossary lead-time entry lists 3-7 days for stock items, 14-21 days for mill-direct standard grades, and 21-30 days for mill-direct alloy grades such as SA213 T11/T22. Plan sugar-mill shutdowns against that window.
Common mistakes on SA213 orders
In practice, the first failure is a carbon-for-alloy swap. A Panki drawing that says T22 cannot be filled with SA210 Gr A1 because the yard has A1. IBR inspectors catch the grade on Form III-B. The tube then fails site registration.
The second failure is ordering SA213 as 2 inch Sch 80 pipe. Boiler tubes are OD × wall. Pipe schedules belong on ASTM A106 or A53 lines, not on superheater banks.
The third failure is an MTC 3.1 offered as a substitute for Form III-B on a tube. Form III-C is the certificate for boiler mountings and fittings, not the tube heat. A Type 3.2 mill certificate is not Form III-B and is not Form III-C. See IBR Form III-C and the Form III-C guide for what that form actually covers.
The fourth failure is welding T11 or T22 with carbon-steel filler. Use the matching Cr-Mo filler and the preheat and PWHT from the qualified WPS for the exact grade and thickness. Carbon-steel filler on T11 or T22 is a material mismatch the inspecting authority will question. Uncontrolled field welds produce hard heat-affected zones.
The fifth failure is an old IBR mill licence. Verify the mill is live for that exact grade before the PO. Heat numbers must match the tube stencil, the MTC, and the challan.
Standards and compliance for SA213
ASME SA-213 / SA-213M sits in Boiler and Pressure Vessel Code Section II Part A. The ASME catalogue URL stored on this site for SA-213 returned HTTP 404 on 2026-09-03, so this page cites SA-213 by designation only and uses the ASTM A213/A213M-25 store abstract for public scope, process, tests, and usual size.
ASTM A213/A213M-25 public abstract requires tension, hardness, flattening, and flaring on each tube, plus either a nondestructive electric test or a hydrostatic test. Ferritic grades on this site are normalized and tempered; austenitic grades are solution annealed.
Indian Boiler Regulations, 1950, assign Form III-A to steam pipes, Form III-B to tubes, and Form III-C to boiler mountings and fittings. Form III-B names manufacturer, heat, specification (SA-213 T11 or T22), dimensions, chemistry including Cr and Mo, mechanicals, heat treatment, and the Inspecting Authority stamp.
EN 10204 Type 3.1 is standard B2B documentation. Type 3.2 is countersigned by a third party. Every dispatch from RP Sales includes an MTC. TPI by SGS, Bureau Veritas, Lloyds, or TUV is coordinated at the Kanpur yard when the RFQ names it.
Where you'll meet this in procurement
You will meet SA213 when a buyer, consultant, or mill quote names a governing specification. Confirm which revision applies, what tests the standard requires, and whether the grade on the MTC actually matches the SA213 call-out on the RFQ before you lock commercial terms.
Related terms
Related resources
Key points
- SA213 is seamless alloy boiler / superheater / heat-exchanger tube, not A106 pipe and not SA210 carbon tube.
- The approved drawing controls whether the order is T11, T12, T22, or an austenitic SA213 grade.
- Usual furnished size on ASTM A213/A213M-25 scope 1.3 is 3.2 mm ID to 127 mm OD, wall 0.4 to 12.7 mm.
- IBR tubes need Form III-B plus MTC. Form III-C is for boiler mountings and fittings.
- Quotes are ex-warehouse Kanpur, GST 18% extra. The boiler tube price list has no ₹/kg band for SA213 T11/T22; available on indent.
Frequently asked questions
Sources
- ASTM A213/A213M-25. Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes (public abstract, scope 1.1-1.3) (ASTM International)
- ASME SA-213/SA-213M. Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes (BPVC Section II Part A); cited by designation after the stored ASME catalogue URL returned HTTP 404 on 2026-09-03 (American Society of Mechanical Engineers)
- Indian Boiler Regulations, 1950. Forms index: III-A steam pipes, III-B tubes, III-C boiler mountings and fittings (Central Boilers Board, Government of India)
- EN 10204:2004. Metallic products. Types of inspection documents (3.1 / 3.2) (European Committee for Standardization (CEN))