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Industrial Pipes
Industrial Pipes
Industrial Pipes( Steel & Metallic )｜Global Sourcing for Engineering & Procurement
1. Scope and Supply Forms
Integrated portfolio covering seamless pipes, welded pipes, stainless and nickel-alloy pipes and tubes, serving full-cycle EPC and procurement needs.
• Carbon and low-alloy: seamless hot-finished and cold-finished, ERW∕HFW, LSAW, SSAW∕HSAW, EFW for pressure and structural use.
• Stainless and duplex: seamless and welded for process, seawater, high-chloride, sanitary and UPW services.
• Boiler∕heat-exchanger tubes: “tubes” for boilers, superheaters and exchangers, distinct from “pipes” used for process and pipelines.
• Line pipe: onshore∕offshore transmission, stations and skids.
• Dual dimensional universes: NPS∕Schedule and DN∕EN ISO 1127, with bevel, plain end or threaded ends.
2. Standards Matrix & Applicability
General & size systems
• General requirements: ASTM A530∕ASME SA530 for carbon and low-alloy pipes; ASTM A999∕ASME SA999 for alloy and stainless pipes; ASTM A1016∕ASME SA1016 for boiler∕HX tubes.
• Size series: ASME B36.10M (carbon∕alloy pipes), ASME B36.19M (stainless pipes), EN ISO 1127 (stainless tubes), EN 10220 and ISO 4200 (general dimensions). Mill test certificates per EN 10204.
Carbon & low-alloy (mainly Pipe)
• General∕structural: ASTM A53, EN 10255, GB∕T 8163 (fluid), GB∕T 8162 (structural).
• High-temperature: ASTM A106, ASTM A335 (P-series), GB∕T 5310, GB∕T 9948.
• Low-temperature: ASTM A333.
• Line pipe: API 5L and ISO 3183 (PSL1∕PSL2), GB∕T 9711.
• EFW and SAW alloy pipes: ASTM A671∕A672 (EFW CS∕LAS), ASTM A691 (EFW Cr-Mo).
• Piling & structural hollow sections: ASTM A252, EN 10219, EN 10210, ASTM A500.
Stainless & duplex (Pipe and Tube)
• Process∕pipeline pipes: ASTM A312 (austenitic), ASTM A358 (EFW austenitic large OD), ASTM A790 (duplex pipe), ASTM A928 (EFW duplex). EN 10216-5, EN 10217-7, GB∕T 14976, GB∕T 12771, GB∕T 13296 as regional counterparts.
• Boiler∕HX∕instrument tubes: ASTM A213 (ferritic & austenitic seamless tubes), ASTM A269 (austenitic tubes for general∕instrumentation), ASTM A789 (duplex tubes), ASTM A270 (sanitary tubes).
• Nickel alloys: ASTM B163∕B167∕B444∕B423∕B622∕B619 (600, 625, 800H, 825, C-22, C-276, etc.).
3. Grades Coverage (examples)
• Carbon & low-alloy: A53, A106 Gr.B∕C, A333 Gr.6, A335 P11∕P22∕P91∕P92, API 5L B∕X42–X80, GB Q345∕20.
• Austenitic SS: TP304∕304L, 316∕316L, 321, 347H, 310S, 904L, 6Mo.
• Duplex∕super duplex: S32205∕S31803, S32750∕S32760.
• Ferritic∕martensitic SS: 409L, 430, 444, 410, 420, 431.
• Nickel alloys: 600, 625, 800H∕HT, 825, C-22, C-276, 625LCF.
4. Dimensions & Tolerances
• Pressure piping: ASME B36.10M and B36.19M, NPS 1∕8 to 48, Schedules Sch 5S to XXS.
• EN∕ISO series: EN ISO 1127 and EN 10220, tolerances D1–D3 and T1–T3. Chinese GB per each product standard.
• Tubes for HX & instrumentation: OD 6–114.3 mm, WT 0.5–6 mm, 6 m or 12 m; sanitary per ASTM A270 and ASME BPE.
• Line pipe & large OD: API 5L∕GB∕T 9711 up to very large DN; manufacturing UOE∕JCOE∕HSAW∕LSAW.
• General clauses per A530∕A999∕A1016 for straightness, ovality, end squareness, mass tolerance, recorded in PO.
5. Quick Mapping — Service → Material → Standard → Size
• Utilities: A53 or GB∕T 8163; sizes per B36.10M or EN 10220.
• High-T steam: A106∕A335 or GB∕T 5310; tube bundles per A213; sizes per B36.10M.
• Cryogenic: A333 and 304L∕316L per B31.3∕B31.12 with CVN and He-leak as required.
• Refining & chemicals: A312 austenitic and A790 duplex; strong oxidizers∕mixed acids consider B444∕B622; instrumentation per A269; sizes per B36.19M or EN ISO 1127.
• Seawater∕chlorides: 2205∕2507 piping; for high-flow mains consider lined CS API 5L with CRA branches.
• Sanitary∕UPW: A270∕ASME BPE 316L with EP/BA and defined Ra; clamp and flange per BPE.
• Transmission & stations: API 5L∕ISO 3183 or GB∕T 9711 PSL2; skid branches A106∕A312.
• Boilers∕HX: A213 tubes (austenitic & ferritic), duplex tubes per A789, headers per A312∕A358.
6. Manufacturing & QA Highlights
• Routes: seamless piercing–rolling–HT–straightening–NDT–cut; welded plate forming–welding–HT–hydro–NDT–coating.
• Testing: chemistry, mechanicals, metallography; IGC per ASTM A262, duplex phase and G48 pitting, NDT per standard & ITP.
• Documentation: EN 10204 3.1∕3.2; lock standard editions in PO; pressure/tightness per design.
• Compliance: NSF∕ANSI 61∕372 for potable∕reuse, ASME BPE & FDA∕USP for sanitary.
• Coatings: 3LPE∕3LPP∕FBE for buried/offshore; AWWA C210∕C213 for waterworks; internal linings as specified.
7. RFQ Essentials
• Code set and edition, size and Schedule or WT, length and ends.
• Grade: A106 Gr.B, A335 P22, A312 TP316L, A790 S32205, API 5L PSL2 X65, A213 TP304H, A269 TP316L, A789 S32750.
• Route & exams: seamless or welded, NDT coverage, hydro method, 3.1∕3.2 MTC, TPI scope.
• Specials: NACE compliance, CVN, sanitary Ra, coatings, cleanliness & He-leak, duplex ferrite window.
8. Spec Line Examples
• Pipe, ASTM A53 Gr.B, NPS 6, Sch 40, BE, ASME B36.10M, Hydro per A530, MTC 3.1.
• Pipe, ASTM A335 P22, NPS 10, Sch 80, BE, NDE per A335∕A530, HT N+T, MTC 3.1.
• Pipe, ASTM A312 TP316L, NPS 4, Sch 10S, BE, B36.19M, Pickle & passivate per A380∕A967, MTC 3.1.
• Pipe, ASTM A790 S32205, NPS 8, Sch 40S, BE, Ferrite 35–65% reported, G48-A pass, MTC 3.1.
• Tube, ASTM A269 TP316L, 12.7 mm × 1.24 mm, 6 m, A269 tolerances, cleanliness statement attached.
• Tube, ASTM A213 TP304H, 25.4 mm × 3.05 mm, 12 m, A1016 general requirements, hydro or ET per drawing.
• Pipe, API 5L PSL2 X65, OD 762 mm × WT 19.1 mm, LSAW, CVN per spec, 3LPE coating, MTC 3.2.
9. Risk Notes
• Do not swap “tubes” (A213∕A269∕A789) for “pipes” (A312∕API 5L).
• Always pair grade with its standard and size series.
• Freeze standard editions to lock P–T ratings.
• Declare NACE for H₂S wet service with hardness limits.
• Avoid 304∕316 in seawater; use duplex or nickel alloys.
• Sanitary requires ASME BPE and defined Ra.
• Cross-system joints require fit and strength checks.
Industrial Pipes( Steel & Metallic )｜Technical Specifications
1) Scope & Definitions
Metallic pipes—SMLS, ERW/HFI, EFW, LSAW/UOE/JCOE, SSAW, TIG/Laser welded—cover carbon/low-alloy, Cr-Mo, stainless (austenitic/ferritic/duplex/SDSS), nickel & nickel-base alloys, Cu-Ni and titanium. Applications include process/pressure piping, boiler/heat-exchanger, cryogenic, line pipe & OCTG, structural/mechanical, sanitary/UPW, waterworks & hydropower, nuclear/hydrogen/semiconductor.
2) Standards Landscape (by application family)
Framework & dimensions
• ASME B31.1/31.3/31.12, ASME BPVC; PED/EN; China: GB/T 20801 (project-defined).
• ASME B36.10M/B36.19M, EN ISO 1127, EN 10220 for dimensional series.
Process & pressure piping
• ASTM/ASME: A106, A53, A312, A335, A333, A790/A928.
• EN/DIN: EN 10216 (SMLS pressure), EN 10217 (welded pressure).
• China: GB/T 8163, GB/T 3091, GB/T 12771, GB/T 9948, GB/T 6479.
Boiler & heat-exchanger tubes
• ASTM/ASME: A213, A269, A249, A268, A556, A688; Ni/Ti/Cu-Ni: B111, B161, B163, B165, B167, B407, B423, B444, B338, etc.
• China: GB 3087, GB 5310, GB/T 13296-2023, GB/T 24593, GB 5312.
Line pipe & OCTG
• API 5L / ISO 3183, GB/T 9711 (PSL1/2); API 5CT (OCTG). Offshore per DNV-ST-F101 (project).
Structural & mechanical
• ASTM A500/A501 (HSS), ASTM A519; EN 10210/10219/10297/10305; GB/T 8162/3639.
Waterworks & hydropower
• AWWA C200/C205/C210/C213/C222; EN 10224; in China may combine GB/T 3091/9711 with added pressure/acceptance clauses.
Sanitary & UPW
• ASTM A270 / ASME BPE; EN 10357 (ex-DIN 11850).
Nuclear/Hydrogen
• RCC-M, ASME III (NB/NC/ND); HAF604; ASME B31.12 (H₂).
General requirements (to cite in contracts)
• ASTM A999/A530/A1016 (steel/stainless), ASTM B829 (nickel alloys).
3) Manufacturing Routes
• SMLS: pierce–hot roll/extrude → cold finish → HT (N, N+T, Q+T, solution, BA/EP).
• ERW/HFI: strip forming + HF weld (small/medium OD, thin/medium WT).
• LSAW/UOE/JCOE / SSAW: large-diameter/long distance/hydropower penstocks (project-specific).
• Stainless/Ni welded: TIG/Plasma/Laser/EFW; for A249/A269 class, weld seam cold work + solution anneal to restore corrosion resistance.
• Clad/Lined: API 5LD CRA lined/clad; cement mortar (AWWA C205), epoxy/FBE/3LPE/3LPP.
• HT windows: CSEF (P91/P92) strict N+T/PWHT & hardness; duplex quick quench to avoid σ/χ.
4) Size & Capability (typical)
• SMLS: OD 6–720 mm, WT 1–100 mm, L ≤ 18 m.
• ERW/HFI: OD 21.3–610 mm, WT 2–22 mm.
• LSAW/UOE/JCOE: OD 406–2540 mm, WT 6–60 mm, L 6–12 m (up to 18 m).
• SSAW: OD 219–2540 mm, WT 5–25.4 mm.
• Ends: PE/BE/NPT/SW; B16.25 bevel; optional AWWA C606 grooved ends.
5) Materials (examples & UNS)
• CS/LTCS/Cr-Mo: A106 Gr.B/C, A53 Gr.B, A333 (Gr.1/3/6/8/9), A335 (P1/P5/P9/P11/P22/P91/P92); EN P235GH/P265GH, 16Mo3, 13CrMo4-5, 10CrMo9-10.
• Stainless: 304/304L (S30400/S30403), 316/316L (S31600/S31603), 321 (S32100), 347H (S34709), 904L (N08904), 254SMo (S31254), 2205 (S32205)/2507 (S32750); A268 ferritic series.
• Nickel alloys: 400 (N04400), 600 (N06600)/625 (N06625)/690 (N06690), 800H (N08810)/825 (N08825), C-276 (N10276)/C-22 (N06022), 20 (N08020), Ni200/201 (N02200/N02201).
• Cu-Ni/Ti: 90/10, 70/30; Ti Gr.1/2/7/12.
6) Service → Material/Standard Mapping
• General ambient services: A106/A53, EN 10216-1, GB/T 8163.
• High-T steam/reheat (≥450 °C): A335 P11/P22/P91/P92; EN 10CrMo9-10; strict N+T/PWHT/hardness.
• Cryogenic (-196 to -20 °C): A333 (Gr.6/8/9), 304L/9%Ni; consider He-leak as needed.
• Sour (H₂S/CO₂): per MR0175/ISO 15156 (upstream) / MR0103/ISO 17945 (refining/chemical); 2205/2507, 625/825, C-276; hardness/SSC/HIC control.
• Seawater/high chlorides: 2205/2507, 6Mo, 625 or Cu-Ni/Ti; waterworks with AWWA/EN 10224/EN 10312 + NSF 61/372.
• Sanitary: ASTM A270/ASME BPE (EP/BA, Ra limits, low-S 316L).
• Hydropower/Waterworks: AWWA C200 + C205/C210/C213/C222; or GB/T 9711/EN 10224 (contract add-ons).
• Nuclear/Hydrogen/UHP: RCC-M/ASME III/B31.12 + cleanliness & He-leak.
7) QA/QC
• General: chemistry (low S/P) + mechanical (YS/UTS/El; CVN/hardness where required).
• General clauses: A999/A530/A1016/B829 in the PO.
• NDE: UT E213, ECT E426/E309, RT, MT/PT; line pipe PSL2 CVN/DWTT (API 5L/GB/T 9711).
• Pressure/tightness: hydro or equivalent eddy; He-leak for high-consequence/H₂/nuclear/UHP.
• Corrosion specials: ASTM A262 (IGC), A923 (duplex) + G48 (pitting/crevice), NACE TM0284/HIC & TM0177/SSC for sour.
• Sanitary: Ra/EP report, BPE dossier; FDA/USP-VI elastomers.
• Docs: EN 10204 3.1/3.2, HT curves, NDE/pressure, PMI; PED/CE; TPI (ABS/LR/DNV/BV/TÜV/SGS).
8) Supply & Packaging
Fixed/SRL/DRL lengths; large OD in sections. End caps + VCI + crating; dried and sealed bores. Full traceability heat→lot→MTC.
9) RFQ/PO Template
1. Use & code family (A312/A335/A213; API 5L/GB/T 9711; A270/BPE; AWWA C200…).
2. Grade (A335 P22 / A312 TP316L / A790 S32205 / B444 N06625 / GB/T 13296 1Cr18Ni9).
3. Size: OD × WT × L; Schedule or EN ISO 1127 D/T.
4. Ends/Bevel: PE/BE/NPT/SW; B16.25 geometry.
5. HT/Surface: N/Q+T/solution/BA/EP; pickling passivation (A380/A967); coating (FBE/3LPE/3LPP/paint).
6. Exams: NDE coverage; hydro; HIC/SSC, A262/A923/G48, He-leak when required.
7. Docs/Witness: EN 10204 3.1/3.2; TPI plan; NACE statement; PED/CE.
10) Risk Checklist
AWWA vs ASME/EN rating mismatch; 304/316L in high-Cl⁻/oxidizers; P91/P92 HT/hardness out of window; sour without MR0175/MR0103; cryogenic/H₂/nuclear without He-leak; sanitary without BPE/EP/Ra/gaskets; PSL2 without CVN/DWTT; edition not locked; missing ends/bevel; coating/liner compatibility unaddressed; lack of PMI at HCA points.
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