Industrial Pipe & Fitting Sourcing
Engineered for Reliability
ADK eliminates procurement uncertainty for EPC contractors and industrial enterprises across Southeast Asia. We provide factory auditing, on-site quality inspection, and end-to-end supply chain management across China's top steel manufacturers.
Live Auditing & Inspection
Solving Cross-Border Sourcing Vulnerabilities
Overseas contractors face fake test reports, wall thickness non-conformity, and delivery delays. ADK serves as your full-time local engineering liaison in China.
The Common Pain Point
Unverified suppliers deliver substandard wall thicknesses, wrong steel grades, or forge MTC certificates without third-party liability.
Strict mill pre-qualification + chemical PMI spectrometer verification before dispatch.
Remote Blind Spots
EPC engineering managers cannot afford full-time personnel stationed in China to oversee manufacturing and packing milestones.
Live photographic reports, dimensional video logs, and milestone-based production tracking.
Schedule Delays & Rejection
Site-level pipeline rejection upon port arrival results in crushing liquidated damages and construction standstills.
Strict factory gate inspection. No product leaves the mill floor unless 100% compliant.
Core Product Catalog
Supplying carbon, stainless, alloy steel tubular products and precision butt-weld/forged fittings.
High Pressure
Seamless Steel Pipes
ASTM A106 / A53 / API 5L Gr.B / X42-X70
- OD: 1/2" to 36" (21.3mm - 914.4mm)
- Schedule: SCH 10 to SCH XXS
- Applications: Oil & Gas, Boilers, Power
Corrosion Proof
Stainless Steel Pipes
ASTM A312 / A269 / TP304/304L, 316/316L, 321
- Grades: Austenitic, Duplex (2205/2507)
- Finish: Pickled, Annealed, Mirror Polish
- Applications: Petrochemical, Food, Marine
Large Diameter
Welded Pipes (ERW/LSAW/SSAW)
ASTM A53, API 5L, EN 10219, BS 1387
- OD Range: Up to 120" (3000mm)
- Coating: 3LPE, 3LPP, FBE, HDG Hot Dip
- Applications: Water Transmission, Piling
Piping Accessories
Fittings & Flanges
ASME B16.9 / B16.5 / B16.11 / MSS SP-75
- Items: Elbows (45°/90°/180°), Tees, Reducers
- Flanges: WN, SO, Blind, Threaded (150#-2500#)
- Material: Carbon, Low Temp, Stainless, Alloy
Third-Party Inspection Available
We coordinate on-site verification with SGS, BV, TÜV, or your designated inspector prior to vessel loading.
Our 4-Stage Sourcing Assurance
We do not simply place orders. We physically audit the mills, supervise line runs, perform sample laboratory analysis, and certify shipping packaging.
Mill Pre-Audit & Capacity Evaluation
Verifying raw billet supply, rolling equipment calibration, ISO/API credentials, and historical defect rates before issuing POs.
In-Line Production Supervision
Monitoring chemical heats, wall thickness tolerance (tolerance checking according to ASTM/ASME limits), and hydrostatic test execution.
Pre-Shipment Dimensional & Visual Verification
100% check on pipe length, roundness, bevel angle, end cap protection, marking stencil accuracy, and anti-rust varnishing.
Container Lashing & Port Loading Oversight
Ensuring moisture-proof tarping, heavy-duty steel strap binding, and proper crane handling to eliminate transit damage.
Serving Southeast Asian Heavy Industries
Proven supply lines connected directly to ports in Haiphong, Ho Chi Minh, Manila, Batangas, Jakarta, Surabaya, and Port Klang.
Oil, Gas & Petrochemical
High-pressure seamless pipes, NACE MR0175 sour service steel, ASTM A333 low-temp piping, and ANSI class flanges for downstream processing plants.
EPC Construction & Civil Piling
Large-diameter SSAW/LSAW welded casing pipes, structural hollow sections, and custom length pile tubes for bridge and foundation engineering.
Power & Water Transmission
ASME SA213 boiler tubes, heat exchanger U-tubes, ductile iron and lined carbon steel water transmission mains engineered for maximum life cycle.
Get a Comprehensive Quote within 24 Hours
Send your Bill of Materials (BOM), project pipe schedule, or standard requirements. Our bilingual engineering sales team will return verified mill pricing, lead times, and shipping terms (FOB/CIF).