China ANSI ASME B16.47 Welding Neck Flanges for Thailand Projects
Large-diameter forged weld neck flanges built for high-pressure oil refining and gas transport pipelines across Map Ta Phut and Rayong industrial complexes.
View Specifications →Engineered to withstand extreme pressure, severe chemical corrosion, and high thermal fatigue in Southeast Asian industrial environments.
Large-diameter forged weld neck flanges built for high-pressure oil refining and gas transport pipelines across Map Ta Phut and Rayong industrial complexes.
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ISO certified high-precision NPT/BSPT threaded flanges ideal for zero-weld utility pipelines, fire protection networks, and commercial HVAC infrastructure in Thailand.
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Bespoke forged outer rings and flanges designed to absorb severe thermal expansion, structural stress, and vibration in marine and Gulf of Thailand offshore installations.
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PED and ISO 9001 certified EN standard PN-rated weld neck flanges engineered for heavy-duty boiler headers, power generation, and chemical process units.
View Specifications →Thailand has firmly established itself as the manufacturing epicenter of Southeast Asia. Driven by the ambitious Eastern Economic Corridor (EEC) development plan spanning Rayong, Chonburi, and Chachoengsao provinces, the nation is expanding its heavy industrial infrastructure at an unprecedented scale. From megawatt power plants and LNG regasification terminals in Map Ta Phut to advanced automotive assembly hubs and biochemical complexes, the demand for certified pressure-retaining piping components—specifically high-performance forged flanges—has surged exponentially.
Procurement teams and EPC (Engineering, Procurement, and Construction) contractors operating within Thailand face unique operational challenges:
High-pressure Class 900 to 2500 Weld Neck and Ring Type Joint (RTJ) flanges engineered specifically for volatile hydrocarbon processing and steam cracking units.
Chonburi and Rayong automotive plants require reliable JIS 10K/20K and ANSI Class 150 Slip-On flanges for high-efficiency robotic cooling circuits and fluid handling.
Laem Chabang Port Expansion Phase 3 and regional water utility schemes mandate large-diameter EN 1092-1 Type 01 Plain Flanges with epoxy anti-corrosion coatings.
Global energy volatility and regional supply disruption have forced industrial buyers in Thailand to reconsider their sourcing strategies. Dependence on domestic stockists often leads to limited material availability and inflated prices, while traditional European imports suffer from extended 16–24 week lead times.
Shanxi Yuxin Casting & Forging Co., Ltd. bridges this critical gap. Situated in Dingxiang, Shanxi—internationally recognized as the “Hometown of Forging in China”—our integrated Industry 4.0 manufacturing eco-system delivers unmatched efficiency, cost optimization, and technical reliability to Thai engineering firms.
By integrating automated ring-rolling machines, closed-die hydraulic presses, and real-time thermal telemetry furnaces, YUXIN aligns internal crystal grains along the contour of the flange. This continuous grain flow eliminates structural cleavage planes, maximizing impact toughness at temperatures down to −40°C and pressure ratings up to 10,000 PSI.
Every single flange exported to Thailand carries a laser-stamped heat number tied directly to its raw material billet batch. Our digital Quality Assurance system issues comprehensive EN 10204 3.1 Mill Test Certificates (MTC) detailing exact spectral chemical analysis, mechanical tensile/yield strength, Charpy V-notch impact tests, and NDT inspection reports (UT/MT/PT).
Comprehensive engineering reference comparing dimensions, material grades, pressure ratings, and localized application fit.
| Flange Standard | Pressure Class / PN | Nominal Size (DN / Inch) | Available Materials | Primary Application in Thailand |
|---|---|---|---|---|
| ASME / ANSI B16.5 | Class 150, 300, 600, 900, 1500, 2500 | 1/2" to 24" (DN15 - DN600) | ASTM A105, A350 LF2, A182 F304/F316L, F51 Duplex | Oil & Gas Refineries, Offshore Wellheads (Gulf of Thailand) |
| ASME / ANSI B16.47 A/B | Class 75, 150, 300, 600, 900 | 26" to 60" (DN650 - DN1500) | ASTM A105, A516 Gr.70, Stainless Steel 304L/316L | Large Bore Storage Terminals, Power Plant Water Lines |
| EN 1092-1 / DIN | PN6, PN10, PN16, PN25, PN40, PN63, PN100 | DN15 to DN3000 | P245GH, P280GH, S235JR, 1.4301, 1.4404 | Biochemical Facilities, Industrial Boilers, HVAC Networks |
| JIS B2220 | 5K, 10K, 16K, 20K, 30K | 15A to 1000A | SS400, SF440A, SUS304, SUS316 | Japanese Automotive Assembly Plants (Eastern Seaboard) |
| Non-Standard / OEM Drawing | Bespoke Rating up to 400 Bar | Up to 3,000 mm (Outer Dia) | Alloy Steel (F11, F22), Super Duplex, Inconel Clad | Custom Heat Exchangers, Hydro-Turbines, OEM Equipment |
Our dedicated bilingual export engineering desk delivers custom technical proposals, CAD drawing verification, and firm pricing within 24 hours.
Send Inquiry NowExplore our full inventory of ASME, DIN, EN, and JIS compliant pipe flanges, ready for direct factory export to Bangkok, Laem Chabang, and Rayong ports.
Economical flat-face and raised-face plate flanges engineered for municipal water supply, fire networks, and low-pressure utility lines across Thailand.
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Precision forged slip-on plate flanges offering smooth internal alignment, quick field installation, and dual-fillet weld security for industrial process loops.
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ISO certified threaded flanges machined with ultra-tight thread tolerances to prevent leakage in gas lines and high-rise plumbing without on-site welding.
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Engineered with recessed socket steps to guarantee smooth fluid flow in small-bore, high-pressure chemical dosing systems in Rayong industrial parks.
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Heavy-duty forged carbon steel blind flanges used to blank off pressure vessel nozzles and pipeline ends during maintenance in Songkhla and Sattahip ports.
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Paired with loose lap joint flanges to cut material costs in stainless steel piping networks; perfect for sanitary food processing facilities in Central Thailand.
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High-integrity forged socket flanges manufactured per ASME B16.5 for critical hydraulic lines, steam turbines, and gas-fired power stations.
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Bulk factory-direct slip-on flanges available in carbon steel and alloy grades with fast 7-15 day dispatch for Thailand distributor stock replenishment.
View Specifications →No two piping installations in Thailand are identical. Operating conditions vary dramatically from high-salinity offshore marine rigs to ultra-pure food and beverage processing lines. YUXIN provides custom metallurgical formulation and protective coatings matched specifically to regional operational demands:
Specified Flanges: Class 600-2500 Weld Neck RTJ, Blind Flanges.
Material Choice: ASTM A182 F316L, Duplex UNS S31803 / NACE MR0175 sour gas service compliant.
Feature: Zero-leakage sealing under extreme pressure spikes and corrosive hydrogen sulfide (H2S) exposure.
Specified Flanges: EN 1092-1 Type 01 Plain, Type 11 Weld Neck.
Material Choice: Carbon Steel ASTM A105, Q235B with hot-dip galvanizing or blue epoxy paint.
Feature: Maximum resistance to tropical humidity, ambient ground movement, and water hammer.
Specified Flanges: Custom Expansion Joint Flanges, ASME B16.47 Series A.
Material Choice: ASTM A350 LF2 Class 1 (Low Temp), Super Duplex F53.
Feature: Engineered impact toughness down to −46°C for offshore FPSO terminals and LNG transfer lines.
Direct answers from our senior forging engineering team regarding standards compliance, shipping logistics, and quality assurance for Thailand imports.
We manufacture forged flanges strictly compliant with all major international standards used in Thailand, including ASME/ANSI B16.5, ASME B16.47 (Series A & B), EN 1092-1, DIN, JIS B2220, GOST, and BS 4504. Pressure ratings span from Class 150 to Class 2500 (ANSI) and PN6 to PN400 (EN/DIN), covering nominal pipe sizes from 1/2" up to 120" (DN15 to DN3000). Custom non-standard flanges and forged rings up to 3,000 mm outer diameter are also manufactured directly from customer CAD drawings.
Shipping to humid tropical ports such as Laem Chabang or Bangkok Port requires meticulous protective packaging. All machined flange faces are treated with anti-rust yellow varnish, transparent rust-preventive oil, or black rust-proof paint based on customer specification. Raised faces are protected with plastic end caps or wooden covers. Shipments are packed in fumigation-free plywood cases or heavy-duty steel-banded pallets lined with waterproof VCI plastic wrapping to eliminate moisture ingress during transit.
Every shipment includes a comprehensive document package accepted by leading inspection agencies in Thailand (such as SGS, TÜV, BV, and Lloyd's Register). You receive an EN 10204 3.1 Mill Test Certificate detailing exact heat number traceability, spectral chemical analysis, mechanical property test results (Tensile, Yield, Elongation, Hardness), heat treatment logs, and non-destructive examination (UT/MT/PT) reports. Third-party EN 10204 3.2 certification is available upon request.
For standard ANSI B16.5 carbon steel (A105) forged blanks held in stock, finish CNC machining and surface coating are completed within 7 to 15 days. Custom forged-to-order flanges, special alloy grades (e.g., Duplex F51, A182 F11/F22), or large-diameter EN 1092-1 flanges typically require 20 to 35 days depending on raw material billet procurement. We support flexible trial order Minimum Order Quantities (MOQs) to assist Thailand stockists and contractors with project initializations.
Yes. Many Japanese-built automotive and electronics factories in Chonburi and Rayong specify JIS B2220 flanges (5K, 10K, 16K, 20K). Our CNC machining centers carry dedicated tooling presets for exact JIS bolt-circle diameter (BCD), hub dimensions, and face finishes. We guarantee 100% dimensional interchangeability with domestic Japanese brands while offering significant cost efficiency and direct factory lead time transparency.
Connect directly with our senior metallurgical engineers. We offer complimentary CAD drawing reviews, material specification optimization, and transparent C&F shipping quotes to Laem Chabang & Bangkok ports.