SA192

In detail

SA-192 is the ASME Boiler and Pressure Vessel Code Section II material specification for minimum-wall seamless carbon steel boiler and superheater tubes for high-pressure service. Usual furnished sizes on the ASTM A192 abstract are 12.7 to 177.8 mm OD with 2.2 to 25.4 mm minimum wall. Order it by OD and minimum wall against the approved drawing. Where the tube is an Indian boiler pressure part, the IBR certificate is Form III-B.

What SA192 is, and what it is not

SA192 is a minimum-wall seamless carbon steel boiler and superheater tube specification. It is one carbon grade in ASME SA-192/SA-192M, and it is a tube standard, not a pipe schedule product or a chrome-moly alloy.

Scope 1.1 of the A192/A192M-24 store abstract covers minimum-wall seamless carbon steel boiler and superheater tubes for high-pressure service. Scope 1.2 usually furnishes 1/2 to 7 inch OD (12.7-177.8 mm) with 0.085-1.000 inch (2.2-25.4 mm) minimum wall.

The steel is deliberately lean: carbon 0.06-0.18%, manganese 0.27-0.63%, phosphorus 0.035% max, sulphur 0.035% max, and silicon 0.25% max. Site MTC checks use tensile 325 MPa min and yield 180 MPa min.

SA192 is not ASTM A106 pipe, which orders by NPS and schedule. It is not SA210 medium-carbon tube, not SA213 alloy tube, and not IS 1239 water tube.

Who should order SA192, and who needs SA210 or alloy

Buy SA192 for generating-bank, economizer, and other carbon-steel heat-transfer tubes when the boiler drawing names SA192 or A192. Bagasse boilers and industrial water-tube boilers use it when the designer stays with plain carbon steel.

Do not buy SA192 for a drawing that says SA210 Grade A1 or Grade C. Tensile minima differ (SA192 325 MPa min against SA210 A1 415 MPa min on this site), and the allowable-stress basis differs with them.

Do not use SA192 as site steam pipe where the isometric says A106 Sch 40. Tube OD and pipe NPS are different ordering languages, and expansion into a tube sheet needs tube dimensions.

A 2 inch A106 Grade B pipe is 60.3 mm OD while a 2 inch boiler tube is 50.8 mm OD. Ordering pipe dimensions for a tube sheet makes the material unusable and earns only return freight.

SA192 price bands and sizes

Bands are indicative ex-warehouse Kanpur as of 24 May 2026, before GST and freight. SA210 A1 sits beside SA192 for budget context; only the drawing selects the grade.

The full boiler band is ₹100-170 per kg ex-Kanpur across SA192, SA210 A1, and SA210 C. The site price tables list no SA213 T11 or T22 band; alloy tube is indent material quoted per OD, wall, grade, and IBR need.

How to specify SA192 on an RFQ

Write the RFQ as a tube line from the approved drawing, not as a pipe size with a boiler remark.

• Standard: ASME SA192 or ASTM A192 with the edition on the drawing; state minimum wall in words.
• Size: OD and minimum wall in mm; straight or bent form; length and quantity in metres and MT.
• Condition and heat treatment as ordered, with marking and packing needs.
• Tests: flattening, flaring, hardness, and hydrostatic per the A192 abstract, with hydro or NDE reports.
• Documents: MTC 3.1, heat traceability, chemical and mechanical results, and inspection release; Form III-B for IBR tubes.
• Inspection agency and TPI scope, IBR need, and delivery schedule on the same enquiry.
• Delivery: ex-warehouse Kanpur or FOR destination, GST 18% extra.

Worked example: 150 lengths of 38.1 by 3.2 mm tube

W = (38.1 − 3.2) × 3.2 × 0.02466 = 34.9 × 3.2 × 0.02466 = 2.75 kg/m, so one 6 m tube is 16.52 kg.

One hundred fifty tubes are 150 × 16.52 = 2,478 kg, about 2.48 MT. Minimum wall means the supplied tube must not fall below the ordered basis after the applicable tolerance.

The SA192 band for 38.1 by 3.2 mm is ₹108-132 per kg ex-warehouse Kanpur as of 24 May 2026. The steel line is 2,478 × 108 = ₹267,624 (about ₹2.68 lakh) to 2,478 × 132 = ₹327,096 (about ₹3.27 lakh), before GST and freight.

The matching SA210 A1 band at this size is ₹122-148 per kg, but that gap is budget context only. Grade follows the drawing, design calculation, and ITP, never the cheaper row.

Common mistakes on SA192 orders

In practice, buyers order by size match alone: a 50.8 mm OD turns up, but the grade, wall basis, or traceability is wrong. The boiler inspector then rejects the installation.

A106 Sch 40 is offered because both are seamless carbon. Pipe schedule will not expand into a 50.8 mm tube-sheet hole the way the drawing expects.

SA192 is quoted against an SA210 drawing since the OD and wall match and the SA192 rate looks attractive. The material designation and allowable-stress basis no longer match the design.

An MTC 3.1 is offered as a substitute for Form III-B on the tube heat. Form III-C is the certificate for boiler mountings and fittings, and a mill certificate is not an IBR form.

SA192 and SA210 share one bundle because they look identical on the rack. Segregate heats and mark bundles before dispatch, and keep SA179 heat-exchanger tube on its own line.

Standards and compliance for SA192

ASME SA-192/SA-192M sits in Boiler and Pressure Vessel Code Section II Part A; ASTM A192/A192M is the closely aligned ASTM publication. Use the exact designation and edition the drawing states.

The A192/A192M-24 abstract requires chemistry for carbon, manganese, phosphorus, sulphur, and silicon, plus flattening, flaring, hardness, and hydrostatic tests. Mechanical requirements skip tubing under 1/8 inch ID or 0.015 inch wall.

The product standard states no universal temperature ceiling. The approved boiler design sets the temperature limit through material selection and the allowable-stress basis.

For an IBR-controlled tube, the DPIIT forms index assigns Form III-B. EN 10204 3.1 or 3.2 documents are distinct supporting evidence, not statutory acceptance by themselves.

SA192, SA210, and SA213 need the drawing, code calculation, and ITP behind any selection. This page assigns no generic service-temperature or pressure limit to any grade.

Buying SA192 tubes in Kanpur

Dada Nagar process-heater and waste-heat enquiries copy the specified SA192 or other grade with OD and wall. Jajmau process-steam replacements send the drawing tube, quantity, and shutdown need-by date. Panki water-wall and economiser sizes follow the approved drawing and ITP with stage-wise checks.

Bundelkhand and central-UP sugar mills at Lalitpur, Mahoba, Bijnor, and Maharajganj plan shutdown RFQs backwards from the need-by date. East UP mills use the Gorakhpur drop, and Champaran mills in Bihar order against the crushing-season calendar.

The products catalogue lists Maharashtra Seamless, Jindal Saw, ISMT, and Tenaris among boiler-tube mills. Availability, heat, documents, and dispatch date stay quotation-specific; no catalogue list promises a lot.

RP Sales quotes SA192 tube ex-warehouse Kanpur, GST 18% extra, with daily dispatch across Uttar Pradesh, Bihar, Madhya Pradesh, Delhi NCR, and Uttarakhand. See seamless boiler tubes in Kanpur, the SA192 product page, the boiler tube price list, and SA192 vs SA210.

Form III-B dossier: what travels with the tube

For an IBR-controlled SA192 order, write Form III-B on the enquiry. Ask the quotation to identify the mill lot, Inspecting Authority, and heat-number linkage before allocation.

The tube dossier carries MTC 3.1 with heat traceability, chemical and mechanical results, dimensional and hydro or NDE reports, and the inspection release note. Form III-B is the statutory certificate; the mill documents support it.

Never request Form III-C for a tube heat: the DPIIT index titles III-C for boiler mountings and fittings. Where one PO mixes tubes with mountings, each component keeps its own form.

Timing depends on the proposed heat, mill schedule, witness points, authority availability, and III-B issue. Request a dated milestone schedule in the quotation; manufacturing-stage review cannot be assumed after allocation.

Receiving inspection at the yard or site

Reconcile the purchase order, bundle and tube markings, heat identity, grade, dimensions, wall basis, condition, certificate, heat-treatment reports, tests, and statutory release. Release nothing with a mismatch.

Gauge OD and minimum wall rather than trusting the stencil alone. SA192 and SA210 look alike, so segregated heats and marked bundles are the only visual control.

Confirm the tube ends and surface against the PO before unloading finishes. Any mismatch needs formal engineering disposition before fabrication.

A covering letter after dispatch cannot correct a purchase order that names the wrong standard. The PO, bundle marks, and certificates must agree with the approved drawing and inspection plan.

Lead time and shutdown planning from Kanpur

Stock clears in 3-7 days, mill-direct standard grades in 14-21 days, and mill-direct alloy in 21-30 days, as listed on the glossary lead-time entry. The quotation confirms the date for the offered heat.

Sugar-mill shutdowns run against the crushing-season calendar, so send the drawing revision, governing code, service data, and needed inspection documents before commercial comparison.

RP Sales dispatches SA192 tube daily to sites across Uttar Pradesh, Bihar, Madhya Pradesh, Delhi NCR, and Uttarakhand. State the mill site and need-by date on the RFQ; RP Sales responds within 4 working hours.

Panki sits about 12 km, Dada Nagar about 8 km, and Jajmau about 10 km from the Bartan Bazar / Basanti Nagar (208014) yard. Nearby shutdown lots can be inspected at the yard before loading.

Where you'll meet this in procurement

You will meet SA192 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 SA192 call-out on the RFQ before you lock commercial terms.

Related terms

• SA210ASME specification for seamless medium-carbon steel boiler and superheater tubes.
• SA213ASME specification for seamless ferritic and austenitic alloy steel boiler tubes.
• SeamlessPipe without weld seam, manufactured by hot-piercing solid steel billet.
• Hydrotest PressureLiquid-pressure test of a pipe or assembled line under the governing product standard or approved procedure.

Related resources

• Steel pipe standards library
• SA192 standard reference
• SA192 boiler tube product page
• Boiler tubes catalogue
• SA192 vs SA210 comparison
• Boiler tube price list
• Seamless boiler tubes in Kanpur
• SA192 cluster guide
• Sugar mill boiler tubes
• IBR Form III-C guide
• Steel pipes in Kanpur
• Request a quotation (RFQ)
• Back to full glossary

Key points

• SA192 is minimum-wall seamless carbon boiler and superheater tube, ordered by OD and wall, not by schedule.
• The A192 abstract usually furnishes 12.7-177.8 mm OD with 2.2-25.4 mm minimum wall.
• Lean chemistry (carbon 0.06-0.18) with tensile 325 MPa min and yield 180 MPa min on the site checks.
• IBR tubes need Form III-B plus MTC; Form III-C covers boiler mountings and fittings.
• Quotes are ex-warehouse Kanpur, GST 18% extra; 38.1 by 3.2 mm runs about 2.75 kg/m.

Frequently asked questions

Sources

• ASTM A192/A192M-24. Standard Specification for Seamless Carbon Steel Boiler Tubes for High-Pressure Service (scope 1.1-1.4, abstract tests; store page fetched 2026-09-05) (ASTM International)
• ASME SA-192/SA-192M. Seamless Carbon Steel Boiler Tubes for High-Pressure Service (BPVC Section II Part A) (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 (European Committee for Standardization (CEN))