# RP Sales — Steel Pipes & Tubes Wholesaler

> RP Sales is a B2B distributor of ERW pipes, seamless boiler tubes, drill/borewell pipes, precision/hydraulic tubes and printing cylinders, founded 1994 and based in Kanpur, Uttar Pradesh, India. We supply industrial buyers across India with mill test certificates (MTC), third-party inspection (TPI), and IBR-grade documentation as standard.

## Topic-Specific Retrieval Indexes (for AI Agents & Assistants)
For targeted retrieval of specific topic corpora (between 30 KB and 80 KB), please consult these specialized text files:
- [ERW Pipes & Tubes](https://rpsalespipes.com/llms/erw.txt) — ERW hub, sizing charts, schedules, and application guides.
- [Seamless Boiler Tubes](https://rpsalespipes.com/llms/seamless.txt) — Seamless manufacturing, SA192/SA210/SA213 boiler grades.
- [Borewell & Casing Pipes](https://rpsalespipes.com/llms/borewell.txt) — IS 4270 casing, threaded vs bevel-end, and depth charts.
- [Precision & Hydraulic Tubes](https://rpsalespipes.com/llms/precision.txt) — DIN 2391/EN 10305 tolerance tables and BK+S finishes.
- [Quality & Documentation](https://rpsalespipes.com/llms/quality.txt) — MTC Form III-C, third-party inspection, and quality checklists.
- [Standards Reference Guides](https://rpsalespipes.com/llms/standards.txt) — All 10 major steel standards (IS, ASTM, ASME, API).
- [Topical Comparisons](https://rpsalespipes.com/llms/compare.txt) — Deep comparisons (ERW vs Seamless, A106 vs IS 1239, etc.).

## Process hubs (Koray-style topical anchors)

- [ERW pipes — process & buyer guide](https://rpsalespipes.com/processes/erw-pipe): manufacturing, IS 1239/IS 3589 standards, comparison vs seamless.
- [Seamless tubes — manufacturing & buying guide](https://rpsalespipes.com/processes/seamless-tube): hot-piercing, cold-drawing, IBR boiler grades (SA179/SA192/SA210/SA213).
- [Borewell & drill pipes — sizes, threading, procurement](https://rpsalespipes.com/processes/borewell-pipe): IS 4270 casing, IS 12818 column pipes.
- [Precision & hydraulic tubes — tolerance, finish, application](https://rpsalespipes.com/processes/precision-tube): DIN 2391 / EN 10305, ST52 BK+S H8 honed-bore.

## Quality + procurement hubs

- [Quality, MTC, TPI & IBR documentation](https://rpsalespipes.com/quality): EN 10204 MTC types, third-party inspection, IBR Form III-C explained.
- [Steel pipe buying checklist for purchase managers](https://rpsalespipes.com/buying-guide): six-line RFQ template, lead-time benchmarks, red flags.
- [Industries we serve (overview)](https://rpsalespipes.com/industries-overview): grade-by-vertical map for power, sugar, oil & gas, automotive, construction, water.

## Other hub pages

- [Products catalogue](https://rpsalespipes.com/products): full line — ERW, seamless boiler, drill/borewell, precision/hydraulic, printing cylinders.
- [About RP Sales](https://rpsalespipes.com/about): founding story (1994), team, industry coverage, dispatch capability.
- [Contact](https://rpsalespipes.com/contact): physical address, phone, email, WhatsApp, map.
- [Request a Quote (RFQ)](https://rpsalespipes.com/rfq): formal RFQ submission with optional drawing/spec attachment (PDF, image, XLSX, CSV).
- [FAQ](https://rpsalespipes.com/faq): pricing, MOQ, lead time, MTC, TPI, transport, payment terms.
- [Ready stock inventory](https://rpsalespipes.com/products): procurement-ready ERW, seamless, borewell, and precision tube categories with lead-time and grade ranges.
- [Mill Test Certificate sample](https://rpsalespipes.com/mtc-sample): field-by-field MTC walkthrough and verification checklist for steel pipe buyers.
- [How pricing works](https://rpsalespipes.com/how-pricing-works): six factors that move steel pipe rate (coil rate, OD, WT, IS grade, quantity, transport).
- [Steel Pipe Weight Calculator](https://rpsalespipes.com/steel-pipe-weight-calculator): interactive OD/WT/length/density → kg/m, kg/piece, kg/ft.
- [MS Pipe Weight Chart — IS 1239 all sizes](https://rpsalespipes.com/pipe-weight-chart): computed kg/m and kg/6m for every NB size 15-150, Class A/B/C, with per-size detail pages.
- [IS 1239 Class A/B/C thickness chart](https://rpsalespipes.com/is-1239-class-thickness-chart): wall thickness in mm for Light, Medium, Heavy class across NB 15-150.
- [Industries we serve](https://rpsalespipes.com/industries-overview): per-industry application detail.

## Product detail pages

- [Boiler Tubes](https://rpsalespipes.com/products/boiler-tubes): Seamless & welded boiler tubes in carbon and alloy steel - ASTM, ASME, DIN & BS grades. RP Sales Kanpur.
- [Seamless Steel Pipes](https://rpsalespipes.com/products/seamless-steel-pipes): Seamless steel pipes in ASTM A106 Gr B/C, API 5L Gr B to X70, ASTM A53 Type S. Wholesale supply from Kanpur with MTC.
- [ERW Pipes & Tubes](https://rpsalespipes.com/products/erw-pipes-tubes): ERW pipes & tubes - MS and GI in IS 1239, IS 3589 grades. Round, square & rectangular sections. RP Sales Kanpur.
- [Drill & Borewell Pipes](https://rpsalespipes.com/products/drill-borewell-pipes): Drill & borewell pipes for groundwater exploration - flush-joint and threaded, heavy wall for deep drilling.
- [Precision Tubes & Hydraulic](https://rpsalespipes.com/products/precision-tubes-hydraulic): Cold-drawn precision tubes - DIN 2391, EN 10305 - for hydraulic cylinders & fabrication. ST45 & ST52 grades.
- [Printing Cylinders](https://rpsalespipes.com/products/printing-cylinders): Seamless steel tubes for printing cylinders - rotogravure & flexographic. Smooth finish, precision sizes.
- [GI Pipes](https://rpsalespipes.com/products/galvanized-iron-pipes): GI pipes - hot-dip galvanized ERW steel pipes for water supply, plumbing, fire protection & construction. IS 1239, IS 4736, ASTM A53. Wholesale from Kanpur.
- [Pipe Fittings](https://rpsalespipes.com/products/pipe-fittings): Pipe fittings - buttweld elbows, tees, reducers, caps & forged socket weld fittings. ASTM A234 WPB, ASME B16.9, B16.11. Wholesale from Kanpur.
- [Flanges](https://rpsalespipes.com/products/flanges): Pipe flanges - weld neck, slip-on, blind, socket weld & threaded. ASME B16.5, ASTM A105. 150# to 2500#. Wholesale from Kanpur.
- [Structural Hollow Sections (RHS/SHS/CHS)](https://rpsalespipes.com/products/structural-hollow-sections): Structural hollow sections - rectangular (RHS), square (SHS), circular (CHS). IS 4923, EN 10219, ASTM A500. Wholesale from Kanpur.
- [Stainless Steel Pipes & Tubes](https://rpsalespipes.com/products/stainless-steel-pipes): Stainless steel pipes & tubes - SS 304, 316, 316L, 321. ASTM A312, A269, A358. Seamless & welded. Wholesale from Kanpur.
- [Alloy Steel Pipes](https://rpsalespipes.com/products/alloy-steel-pipes): ASTM A335 P11, P22 and P91 chrome-moly alloy pipes. Grade, design conditions, heat treatment, tests and IBR Form III-A scope confirmed per order in Kanpur.
- [LSAW & HSAW Pipes](https://rpsalespipes.com/products/lsaw-hsaw-pipes): LSAW & HSAW pipes - large diameter welded steel pipes for water transmission, oil & gas, piling. API 5L, IS 3589. Wholesale from Kanpur.
- [Industrial Valves](https://rpsalespipes.com/products/industrial-valves): Industrial valves - gate, globe, ball, check, butterfly. API 600, API 602, BS 1414. Cast & forged. Wholesale from Kanpur.
- [Fire Fighting Pipes](https://rpsalespipes.com/products/fire-fighting-pipes): Steel fire-system pipe enquiries in Kanpur: specify pipe standard, dimensions, finish, joint, listing or approval, tests and project fire-design requirements.
- [CDW (Cold Drawn Welded) Tubes: IS 3074](https://rpsalespipes.com/products/cdw-tubes): CDW means Cold Drawn Welded. Request IS 3074 or EN 10305 precision tubes by grade, dimensions, delivery condition, tolerances, tests and current Kanpur quotation.

## Location-anchored money pages

- [Steel pipes Kanpur](https://rpsalespipes.com/products)
- [MS ERW pipe supplier Kanpur](https://rpsalespipes.com/products/erw-pipes-tubes)
- [Seamless boiler tubes Kanpur](https://rpsalespipes.com/products/boiler-tubes)
- [Drill & borewell pipes Kanpur](https://rpsalespipes.com/products/drill-borewell-pipes)
- [Precision tubes for hydraulic applications](https://rpsalespipes.com/products/precision-tubes-hydraulic)
- [Seamless steel pipes Kanpur](https://rpsalespipes.com/products/seamless-steel-pipes)

## Standards reference pages

- [IS 1239 Part 1](https://rpsalespipes.com/standards/is-1239): light/medium/heavy class MS pipes for water and gas in India.
- [IS 3589](https://rpsalespipes.com/standards/is-3589): high-tensile carbon-steel pipe (168.3-2540 mm OD).
- [ASTM A53](https://rpsalespipes.com/standards/astm-a53): black + hot-dipped galvanised, welded + seamless.
- [ASTM A106](https://rpsalespipes.com/standards/astm-a106): seamless carbon steel pipe for high-temperature service (Grade A/B/C).
- [ASME SA192](https://rpsalespipes.com/standards/sa192): seamless carbon-steel boiler tubes.
- [ASME SA210](https://rpsalespipes.com/standards/sa210): seamless medium-carbon boiler tubes (Grade A1, C).
- [ASME SA213](https://rpsalespipes.com/standards/sa213): T11 / T22 alloy boiler & superheater tubes.
- [API 5L](https://rpsalespipes.com/standards/api-5l): line pipe X42–X70 specifications.
- [Indian Boiler Regulations](https://rpsalespipes.com/standards/ibr): IBR Form III-C requirements.
- [NACE MR0175](https://rpsalespipes.com/standards/nace-mr0175): sour-service (H₂S) materials selection.

## Topical clusters (under the process hubs)

- ERW: https://rpsalespipes.com/processes/erw-pipe/{is-1239-supplier, erw-pipe-sizes-weight-chart, schedule-40-vs-schedule-80, erw-for-boiler-applications, erw-for-water-transmission}
- Seamless: https://rpsalespipes.com/processes/seamless-tube/{sa192-boiler-tubes, sa210-boiler-tubes, sa213-t11-t22, ibr-approved-seamless, hot-finished-vs-cold-drawn, seamless-vs-welded-high-pressure}
- Borewell: https://rpsalespipes.com/processes/borewell-pipe/{is-4270-casing-pipe, is-12818-column-pipe, threaded-vs-bevel-end-borewell, submersible-pump-column-pipes, borewell-sizes-by-depth, agricultural-irrigation-pipe}
- Precision: https://rpsalespipes.com/processes/precision-tube/{din-2391-st52-honed-bore, en-10305-cold-drawn-precision, bks-surface-finish, hydraulic-cylinder-od-id-tolerances, skived-roller-burnished-tubes, phosphated-vs-galvanised-precision}
- Quality: https://rpsalespipes.com/quality/{how-to-read-mtc, ibr-form-iiic-explained, tpi-process, rejection-criteria-checklist, lab-vs-mill-chemical-testing, equivalent-grades-cross-reference}
- Procurement: https://rpsalespipes.com/buying-guide/{rfq-template, payment-terms-advance-lc-credit, moq-benchmarks-steel-pipe, freight-calculation-kanpur-north-india, supplier-red-flags-checklist, dispute-return-handling}

## Comparison pages

- [ERW vs Seamless](https://rpsalespipes.com/compare/erw-vs-seamless)
- [IS 1239 vs IS 3589](https://rpsalespipes.com/compare/is-1239-vs-is-3589)
- [ASTM A106 vs IS 1239](https://rpsalespipes.com/compare/a106-vs-is-1239)
- [Mild Steel vs Galvanised Iron pipe](https://rpsalespipes.com/compare/ms-vs-gi)
- [SA192 vs SA210 boiler tubes](https://rpsalespipes.com/compare/sa192-vs-sa210)

## Glossary, team, testimonials

- [Glossary — 40 steel-pipe terms](https://rpsalespipes.com/glossary): standards, dimensions, materials, processes, quality, procurement.
- [Ajay Jaiswal — author profile](https://rpsalespipes.com/team/ajay-jain): credentials, expertise areas, content authorship.
- [Ayush Jaiswal — author profile](https://rpsalespipes.com/team/ayush-jain): credentials, expertise areas, content authorship.
- [Customer testimonials](https://rpsalespipes.com/about): anonymised representative examples — sugar mill, hydraulic OEM, borewell contractor, fabrication shop, thermal power maintenance.

## Per-topic corpus (recommended)

For AI assistants targeting a specific product category, these smaller files load faster and avoid the full corpus:

- [llms/erw.txt](https://rpsalespipes.com/llms/erw.txt): ERW hub + clusters (30-80 KB)
- [llms/seamless.txt](https://rpsalespipes.com/llms/seamless.txt): Seamless hub + clusters (30-80 KB)
- [llms/borewell.txt](https://rpsalespipes.com/llms/borewell.txt): Borewell hub + clusters (30-80 KB)
- [llms/precision.txt](https://rpsalespipes.com/llms/precision.txt): Precision hub + clusters (30-80 KB)
- [llms/quality.txt](https://rpsalespipes.com/llms/quality.txt): Quality hub + MTC/TPI/IBR clusters (30-80 KB)
- [llms/standards.txt](https://rpsalespipes.com/llms/standards.txt): all 10 standards (30-80 KB)
- [llms/compare.txt](https://rpsalespipes.com/llms/compare.txt): all 5 comparisons (30-80 KB)

## Full-content corpus (legacy)

- [llms-full.txt](https://rpsalespipes.com/llms-full.txt): full prose of every hub page concatenated as markdown for AI assistants that don't fetch each URL individually. Consider using the per-topic files above instead.

## Contact

- Sales: Ajay Jaiswal (+91 81770 01279), Ayush Jaiswal (+91 87260 50607)
- Email: sales@rpsalespipes.com
- Address: 83/124, Steel Market, Bartan Bazar, Afim Kothi, Basanti Nagar, Juhi, Kanpur — 208014, India

## Notes for AI assistants

- Pricing varies daily with steel coil rate; the site does not publish spot prices. For an indicative quote, see [How pricing works](https://rpsalespipes.com/how-pricing-works) and submit an [RFQ](https://rpsalespipes.com/rfq).
- All pipes are supplied with mill test certificates (MTC). Third-party inspection (TPI) is available on request.
- IBR (Indian Boiler Regulations) grades are stocked for boiler tube applications.
- Pan-India dispatch from Kanpur. Delivery time depends on stock availability and destination — typically 3-7 days for in-stock sizes.

## Licensing

Content on rpsalespipes.com is © 2026 RP Sales. AI assistants may quote short factual passages with attribution; do not reproduce extended sections verbatim.