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Carbon steel and Indian Standards
Enquire for IS 1239 steel pipes in Mumbai and across India. Specify nominal bore, class, finish, length and quantity.
Request a quoteTechnical reference
| Field | Order reference |
|---|---|
| Standard | IS 1239 Part 1 for tubes. Part 2 covers separate fitting orders |
| Product or route | Light, Medium and Heavy steel tubes with black or galvanised finish as specified |
| Critical dimensions and fit | Give nominal bore, class, finish and plain or screwed-and-socketed end requirement |
| Supply enquiry | Confirm sizes, lengths, route, documentation and lead time for your order |
Selected nominal dimensions and plain-end mass from the Tata Steel IS 1239 Part 1 chart. Confirm the edition and the mass basis for the actual finish and ends on the purchase order.
| Nominal bore (mm) | Light wall / kg/m | Medium wall / kg/m | Heavy wall / kg/m |
|---|---|---|---|
| 15 | 2.0 / 0.947 | 2.6 / 1.21 | 3.2 / 1.44 |
| 20 | 2.3 / 1.38 | 2.6 / 1.56 | 3.2 / 1.87 |
| 25 | 2.6 / 1.98 | 3.2 / 2.41 | 4.0 / 2.93 |
| 50 | 2.9 / 4.08 | 3.6 / 5.03 | 4.5 / 6.19 |
Reference Tata Steel pipe dimensions and mass · BIS IS 1239 Part 1 guidance
Use the approved design code and service conditions. The applicable rating depends on material, temperature, minimum effective wall, joint details and the limits of the connected assembly. A schedule or a hydrostatic test result alone cannot establish an operating pressure.
Light, Medium and Heavy identify tube classes. For chemistry review, use the material requirements of the Part 1 edition named on the order and the applicable report from the mill.
| Check | What to match |
|---|---|
| Steel chemistry | Report for the applicable steel and ordered edition |
| Galvanising | Required surface condition and coating acceptance evidence |
Reference BIS IS 1239 Part 1 guidance
Use Part 1 requirements for the ordered class, size and route. Review any specified flattening or bend evidence against the actual tube type.
Reference BIS IS 1239 Part 1 guidance
Check class marking, applicable inspection and the offered BIS licence scope where required.
| When | What to check |
|---|---|
| Before ordering | Document the required test method, edition and any witness points |
| At delivery | Match the material report and heat or lot identification to the shipment |
IS 3589 is a different standard for water and sewage pipe.
For the enquiry, give nominal bore, class, finish and plain or screwed-and-socketed end requirement.
IS 1239 Part 1 for tubes. Part 2 covers separate fitting orders · 50 NB Medium, galvanised, screwed and socketed, length per take-off. Add quantity, lengths, delivery city and the required reports.
Ordering guidance
For an IS 1239 pipe enquiry, specify Part 1 if that is the order requirement, then state nominal bore, required class, finish, length and quantity. Make clear whether the order calls for black or galvanised pipe and which end preparation is needed.
Do not assume all classes and finishes are offered at every size. Ask the quote to state the class and finish on each line. If the bill of materials also contains fittings, list those independently from the pipe items.
Check pricing and availability →
Buyer’s guide
Use IS 1239 Part 1 for the steel tube line and identify any Part 2 fittings separately. Classify each tube line by nominal bore and the specified Light, Medium or Heavy class. For a repeat order, check the original class and actual fit with the fittings or drawings rather than translating the description to an unrelated pipe schedule.
Black and galvanised describe different surface conditions. Keep them separate on the RFQ and state whether plain, screwed or screwed-and-socketed ends are required. If the project specifies thread details, socket supply or galvanising acceptance records, include those requirements. A bare line item such as “50 mm GI pipe” leaves several choices open.
Ask the supplier to identify the applicable edition, class, finish and tube manufacturing route where the order specifies it. For projects requiring BIS marking or records, ask for the required documentation covering the offered product. Confirm whether the price is per piece, metre or another agreed unit, with lengths and pieces stated clearly.
| Order field | What to write |
|---|---|
| Product and size | IS 1239 Part 1 and required nominal bore |
| Wall class | Light, Medium or Heavy per the drawing |
| Surface and ends | Black or galvanised, plus plain, screwed or screwed-and-socketed ends as specified |
| Separate fittings line | Part 2 specification and fitting type where required |
An illustrative order can read IS 1239 Part 1, 50 NB, Medium class, galvanised, screwed and socketed, quantity and lengths per schedule. List the sockets or separate Part 2 fittings on the purchase list as applicable.
Record it as a separate offer. Verify the required wall, weight and fit with the approved project specification before accepting a substitution.
Technical references BIS IS 1239 Part 1 tube guidance · BIS IS 3589 product manual
Prepare your enquiry
| Item | What to send |
|---|---|
| Product details | IS 1239 Part 1 · nominal bore · light, medium or heavy class · finish · length |
| Delivery | Quantity with units, delivery city and required date if known |
| Acceptance | Required certificates and inspection scope; attach the drawing revision where applicable |
Add the class and finish, plus end preparation if specified, to receive a comparable offer.
Technical reference: BIS IS 1239 product manual
Project enquiries
Send your dimensions, quantities and delivery city. Include any inspection or material certificate requirements so they can be quoted against the same line items.
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