Complete Project BOM Supply
Send us your Bill of Materials — our team will review, clarify, quote and deliver the complete package with full documentation.
BOM Enquiry Submitted
Our project supply team will review and respond within 24 hours.
Reference: sales@rrhydraulics.com
Complete Project BOM Supply
RR Hydraulics provides complete project Bill of Materials (BOM) supply for EPC contractors, owner-operators and engineering companies — covering the full range of piping, fastener and flange commodities from a single source with unified documentation, coordinated delivery and a dedicated project supply team. Submit your MTO and receive a consolidated quotation covering every line item.
Complete BOM Supply Process
& Single-Source Procurement Advantages
Single Source · EPC · Piping Classes · Material Grades
What is Complete Project BOM Supply
A Bill of Materials (BOM) or Material Take-Off (MTO) for a process plant or pipeline project typically contains thousands of line items spanning dozens of commodity types: flanges, pipe fittings, fasteners, gaskets, valves, instrumentation, structural supports and more. Traditionally, EPC procurement teams issue separate enquiries to multiple specialist vendors for each commodity group — a process that creates significant procurement overhead, introduces supplier coordination risk, and complicates documentation management across dozens of partial-supply MTCs.
RR Hydraulics provides complete project BOM supply — a single-source procurement model where your entire piping hardware MTO (or a defined scope of it) is processed, quoted and delivered by one supplier with one consolidated documentation package. This dramatically reduces procurement overhead, eliminates inter-supplier coordination, consolidates EN 10204 MTCs into a single document set, and provides a single point of accountability for delivery schedule and quality.
In a typical EPC project with 5,000–50,000 BOM line items across 15–30 commodity groups, managing separate vendor qualification, separate RFQs, separate purchase orders, separate expediting, separate inspection programmes and separate documentation compilations for each vendor multiplies procurement cost and schedule risk. Single-source BOM supply from RR Hydraulics reduces this to one RFQ, one purchase order, one expediting contact, one consolidated inspection programme (where applicable) and one documentation package — delivering both procurement cost reduction (typically 15–25% of procurement overhead) and schedule risk reduction through unified lead time management and a dedicated project supply coordinator.
Our 4-Step BOM Supply Process
Commodity Coverage
& Product Category Scope
Carbon Steel · Stainless · Duplex · Alloy · Exotic
Full Commodity Scope
Documentation, Compliance
& Quality Management
Consolidated Document Package · Heat Traceability · ITP
Documentation Levels
RR Hydraulics supplies documentation at the level appropriate to the project specification and service criticality:
- EN 10204 3.1 — The standard documentation level for most onshore process plant, utilities and non-critical process service. The material test certificate is issued by the manufacturer's own quality department and certifies chemical composition, mechanical properties and applicable standard compliance. Covers the majority of carbon steel and stainless steel commodity supply.
- EN 10204 3.2 — Required for offshore, sour service (NACE), safety-critical, alloy steel (F11/F22/F91) and exotic alloy supply. The MTC is issued by an independent third-party inspection (TPI) body — Bureau Veritas, DNV, Lloyd's, SGS, TÜV — which has witnessed the testing and countersigned the certificate. Every EN 10204 3.2 MTC from RR Hydraulics includes the TPI inspector's name, stamp and certification number.
- NACE MR0175 / ISO 15156 Compliance — Hardness survey of finished product cross-sections per NACE limits; separate hardness report issued per heat. For HIC-resistant grades, NACE TM0284 test report with CLR/CTR/CSR values. For duplex grades, ferrite content measurement per ASTM E562.
- PMI (Positive Material Identification) — 100% PMI by XRF on all stainless, duplex, alloy steel and exotic alloy items. PMI report listing individual readings for every component, not sampling. Critical for offshore projects where alloy substitution risk is high.
| Product Category | Standard Service (Onshore) | Offshore / NACE Sour | Alloy Steel / High-Temp | Exotic Alloy |
|---|---|---|---|---|
| CS Flanges (A105) | EN 10204 3.1 | 3.2 + TPI + NACE HB | 3.2 + PWHT cert | 3.2 + PMI + TPI |
| SS Flanges (F304L/316L) | EN 10204 3.1 + PMI | 3.2 + TPI + PMI | — | 3.2 + PMI + TPI |
| Duplex Flanges (F51/F53) | 3.1 + PMI + Ferrite | 3.2 + TPI + PMI + Ferrite + NACE | — | 3.2 + TPI + PMI |
| BW Fittings (A234 WPB) | EN 10204 3.1 | 3.2 + TPI + NACE + HIC (if req.) | 3.2 + PWHT | 3.2 + PMI + TPI |
| Stud Bolts (A193 B7) | 3.1 + hardness per heat | 3.2 + NACE HRC + Xylan QC | 3.1 + hardness | 3.2 + PMI + TPI |
| Spectacle Blinds (A516 Gr.70) | 3.1 + flatness + AARH | 3.2 + TPI + NACE + HIC (if req.) | 3.2 | 3.2 + PMI + TPI |
| Gaskets (SWG/RTJ) | Gasket MTC + cert | Gasket MTC + material cert | Gasket MTC | Gasket MTC + PMI |
| Valves | 3.1 + hydrotest cert | 3.2 + TPI + NACE trim cert | 3.2 + PWHT | 3.2 + PMI + TPI |
Inspection and Test Plan (ITP)
For offshore, NACE sour service and safety-critical projects, RR Hydraulics prepares a project-specific Inspection and Test Plan (ITP) for each commodity scope. The ITP defines: (1) the inspection hold points (H) where work stops until TPI approval; (2) witness points (W) where TPI attends but work may proceed if TPI is not available within an agreed notice period; (3) review points (R) where documents are reviewed but no physical witness is required; and (4) the documentation required at each stage. The ITP is submitted to the client's project quality team for approval before fabrication/procurement commences.
Approved TPI agents used by RR Hydraulics for EN 10204 3.2 witness: Bureau Veritas (BV), DNV GL, Lloyd's Register, SGS, TÜV Rheinland, Intertek, Apave. TPI agent selection is per client preference or project specification requirement.
Project Types, Industries Served
& How to Submit Your BOM
Offshore · Refinery · LNG · Chemical · Power · Pipeline
Project Types Served
New-build refinery, petrochemical, gas processing, LNG, power generation and chemical plant projects — where the complete piping hardware BOM must be procured from the detailed engineering phase through to mechanical completion. RR Hydraulics can engage at the front-end engineering (FEED) stage to advise on piping material class specifications, material grade selections and documentation requirements, ensuring that the BOM is optimally specified for both performance and procurement efficiency before the full MTO is issued.
Offshore platform topsides and subsea production system projects require the highest level of material qualification (EN 10204 3.2 with TPI), NACE compliance, PMI and documentation control. RR Hydraulics' offshore project experience covers NORSOK M-630 specification compliance, Shell DEP, BP ETP and operator-specific piping material class requirements. Dedicated offshore project supply coordinators manage documentation, TPI scheduling and expediting for offshore scopes.
Expansion, debottlenecking, rerouting and modification projects at existing plants typically have complex BOM requirements — matching existing piping class specifications (which may be decades old), accommodating obsolete material grades and standards, and integrating new piping into legacy systems. RR Hydraulics' technical team reviews legacy piping class documents and current standards to identify equivalent modern grades, ensuring seamless integration of new materials into existing systems.
Plant turnaround BOMs — covering all flanges to be broken, all gaskets to be replaced, all bolts to be renewed and all spectacle blinds required — are time-critical procurement exercises where late delivery of any item delays the turnaround and costs the plant operator tens of thousands of dollars per hour of extended shutdown. RR Hydraulics specialises in turnaround BOM supply with compressed lead times, pre-kitted bolt sets tagged to equipment numbers, and priority despatch on confirmed orders. Contact our team as early as possible in the turnaround planning cycle — ideally 6–12 weeks ahead of the scheduled start date for standard materials, and 12–20 weeks for exotic alloys.
How to Submit Your BOM
- Email your MTO directly to sales@rrhydraulics.com — attach your BOM spreadsheet, piping class documents and project specification in any format (Excel, PDF, CSV, PDMS/Smart Plant 3D export)
- Use the enquiry form on this page to describe your project and our team will contact you to collect the BOM data
- Request a technical meeting — for large projects (>1,000 BOM line items), a kick-off call with our project supply team and your procurement and engineering teams allows us to clarify documentation requirements, agree material grades and establish the supply schedule before the formal RFQ is issued
- Provide as much detail as possible: piping classes, pressure rating, material grades, NPS ranges, service conditions (NACE/non-NACE, temperature, pressure), coating requirements, documentation level (3.1 or 3.2), and TPI agent preference
- For urgent or time-critical enquiries, mark your email subject as "URGENT BOM — [Project Name]" and we will respond within 4 hours
| Industry / Project Type | Typical Commodity Scope | Key Material Grades | Documentation Level |
|---|---|---|---|
| Refinery / Petrochemical | Flanges, fittings, fasteners, gaskets, valves, spectacle blinds, orifice flanges | A105, A182 F304L/F316L, F11/F22, F51 Duplex | 3.1 standard; 3.2 + TPI sour/critical |
| Offshore Topsides | Full piping hardware BOM per NORSOK M-630; kitted bolt sets; exotic alloy fasteners | A105 Xylan-coated, F51/F53 Duplex, Inconel 625 | EN 10204 3.2 + TPI on all items |
| LNG / Cryogenic | LTCS flanges/fittings, SS 304L cryogenic fittings, Charpy-tested fasteners | A350 LF2, A420 WPL6/WPL3, A403 WP304L | 3.1 + Charpy; 3.2 for offshore |
| Power Generation | WNF, BW fittings, high-temp alloy fasteners, SWG gaskets, steam valves | A182 F22/F91, A193 B16, A234 WP22/WP91 | 3.1 + PWHT cert; 3.2 for critical |
| Chemical / Pharmaceutical | SS flanges, alloy fittings, exotic fasteners, Hastelloy/Monel/Ti items | A182 F316L, Hastelloy C276, Monel 400, Ti Gr.2 | 3.1 + PMI; 3.2 for offshore/critical |
| Subsea / Deepwater | Duplex/super duplex all commodities; Inconel 625 fasteners; subsea flanges | A182 F51/F53, Inconel 625, Ti Gr.5 | EN 10204 3.2 + TPI + PMI all items |
| Pipeline / Gas Transmission | Large bore flanges (B16.47), spectacle blinds, orifice flanges, bolt kits | A105, A350 LF2, A182 F316L (sour) | 3.1 standard; 3.2 + NACE for sour |
| Turnaround / Maintenance | Gaskets, bolt kits, spectacle blinds, replacement flanges and fittings | Match-to-existing piping class specs | 3.1 standard; priority despatch |
RR Hydraulics is a single-source supplier for the complete piping hardware BOM across all major EPC project types. Our manufacturing and supply capability covers: all flange types (weld neck, blind, slip-on, lap joint, orifice, spectacle blind, long weld neck), all butt weld fittings (elbows, tees, reducers, end caps, stub ends), all threaded and socket weld fittings (nipples, couplings, unions), all fasteners (stud bolts, hex bolts, nuts, washers, exotic alloys, specialty coatings), gaskets (SWG, RTJ, full-face, Kammprofile), valves, instrumentation items, piping supports and specialty items in carbon and alloy steel, stainless steel, duplex and super duplex, Inconel, Hastelloy and Monel, and titanium. EN 10204 3.1/3.2 documentation with approved TPI bodies. ISO 9001:2015 certified. Submit your project BOM to sales@rrhydraulics.com — we respond within 24 hours.