Stainless Steel Flanges Supplier to Thailand

Leading Manufacturer & Exporter of
Stainless Steel Flanges to Thailand

Werner Flanges is a premier manufacturer and exporter of high-quality stainless steel flanges to Thailand, serving the nation's rapidly expanding petrochemical, energy, and industrial sectors. With over two decades of manufacturing excellence, we supply precision-engineered stainless steel flanges that meet the rigorous demands of Thailand's industrial corridor, particularly in the Eastern Economic Corridor (EEC) comprising Rayong, Chonburi, and Chachoengsao provinces.

Our stainless steel flanges are manufactured to international standards including ASME B16.5, ASTM A182, DIN, and EN specifications, making them ideal for Thailand’s diverse industrial applications. We supply a comprehensive range of stainless steel flanges in grades 304, 304L, 316, 316L, 321, 347, and duplex variants to industries across Bangkok, Rayong, Map Ta Phut, Sriracha, Laem Chabang, and other major industrial zones throughout Thailand.

Thailand’s position as Southeast Asia’s second-largest economy and a major petrochemical hub demands reliable, corrosion-resistant piping components. Our stainless steel flanges are specifically engineered to withstand the challenging conditions found in chemical processing plants, offshore platforms in the Gulf of Thailand, power generation facilities, and marine applications along Thailand’s extensive coastline.

We manufacture stainless steel flanges in all standard configurations including Weld Neck, Slip On, Blind, Socket Weld, Threaded, and Lap Joint types, available in pressure classes ranging from 150# to 2500# and sizes from 1/2″ to 60″. Each flange undergoes rigorous quality testing including PMI (Positive Material Identification), dimensional inspection, mechanical testing, and non-destructive examination to ensure compliance with international standards and customer specifications.

Our strategic manufacturing capabilities enable us to offer competitive pricing combined with fast delivery times to major Thai ports including Laem Chabang Port, Map Ta Phut Port, and Bangkok Port. With complete material traceability, comprehensive test documentation, and third-party inspection services available through TÜV, Lloyd's Register, Bureau Veritas, and SGS, Werner Flanges is your trusted partner for stainless steel flanges in Thailand.

Thailand Stainless Steel Flanges | Laem Chabang, Map Ta Phut & Bangkok Port Delivery | TÜV, LR, BV & SGS Certified | Full Traceability & Test Documentation

Specifications

Specification	Details
Pressure Rating	Class 150 to Class 2500
Flange Type	Plate Flange
Facing Type	Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
Size Range	½” to 24” (DN 15 to DN 600)
Temperature Range	-29°C to +593°C (Depending on Material & Pressure Class)
Applications	Oil & Gas, Petrochemical, Power Generation, Water Treatment, Marine & Industrial Sectors
Manufacturing Process	Forged / Machined
Certification	EN 10204 3.1 / 3.2, IBR, NACE MR0175 / ISO 15156 (as applicable)

Matel and Grade

Type of Materials	Common Specifications / Customization Available on Request
Duplex Steel	ASTM/ASME A182 F51, F60, F61, UNS S31803, UNS S32205
Super Duplex Steel	ASTM/ASME A182 F53, F55, UNS S32750, UNS S32760, F44 (6Mo)
Stainless Steel	ASTM/ASME A182 F304, F304L, F316, F316L, F310, F317L, F321, F347
Carbon Steel	ASTM A105, A350 LF1, LF2, LF3, A266 Class 1/2, A694 F42 to F70, A765 Gr. II
Alloy Steel	ASTM/ASME A182 F1, F5, F9, F11, F12, F22
Non-Ferrous Alloys	Titanium, Brass, Admiralty Brass, Copper Nickel, Nickel Alloys, Hastelloy
Titanium	ASTM/ASME B381 Gr.1, Gr.2, Gr.5, Gr.7, Gr.12, Gr.16
Copper Nickel	ASTM B151 UNS C70600 (Cu-Ni 90/10), C71500 (Cu-Ni 70/30)
Brass, Al-Brass	ASTM B152 UNS C26000, C27200, C28000; ASTM B111 for Al-Brass
Nickel Alloys	ASTM B160, B161, B564 – UNS N02200, N02201, N04400, N08800, N08825, N06600, N06601, N06625, Monel K500
Alloy 20	ASTM B462 UNS N08020
Hastelloy	ASTM B564 UNS N10276 (Hastelloy C276), N06022 (Hastelloy C22)
Cladded Materials	ASTM B898, B265, B424 or custom explosion/clad bonding using dissimilar metals
Cladded Materials	Titanium-Steel, Nickel-Steel, Titanium-Copper, Stainless Steel-Carbon Steel, Bimetallic/Trimetallic Combinations

Types of Flanges

Slip On Flanges	Weld Neck Flanges	Blind Flanges	Socket Weld Flanges	Threaded Flanges
Lap Joint Flanges	Reducing Flanges	Orifice Flanges	Long Weld Neck Flanges	Plate Flanges

Industries and Applications We Supply

Industry	Applications
Oil & Gas Industry	Thailand’s oil and gas sector, dominated by PTT Exploration & Production (PTTEP), represents a major consumer of corrosion-resistant stainless steel flanges. The Gulf of Thailand contains numerous offshore production platforms operating in challenging marine environments with high chloride exposure and humidity. Upstream Applications: Offshore Production Platforms: F316/F316L flanges for seawater injection systems, firewater systems, and produced water handling at platforms in Erawan, Bongkot, and Arthit fields Wellhead Equipment: High-pressure F316 and duplex F51 flanges for Christmas trees and wellhead assemblies Gas Compression Systems: F321 flanges for high-temperature gas compression discharge lines Subsea Pipelines: Super duplex F53/F55 flanges for subsea manifolds and pipeline end terminals (PLETs) Midstream Applications: Gas Processing Plants: Rayong Gas Separation Plant and Map Ta Phut Industrial Port use F316L flanges for amine treating units, glycol dehydration systems, and sour gas handling Gas Transmission Pipelines: F304/F316 flanges for meter stations and valve stations along PTT’s natural gas transmission network LNG Terminals: Map Ta Phut LNG receiving terminal employs cryogenic-service stainless steel flanges for regasification systems Downstream Applications: Refineries: Thai Oil’s Sriracha Refinery, Bangchak Petroleum’s Bangkok Refinery, Star Petroleum Refining (SPRC) in Rayong use F316L flanges in fluid catalytic cracking units (FCCU), hydrodesulfurization (HDS) units, and naphtha reformers Corrosive Service: F321 flanges in high-temperature refinery heaters and F316L in sour water stripper systems.
Power Generation	Thailand’s Electricity Generating Authority (EGAT) and independent power producers operate numerous power plants across the kingdom, requiring high-temperature, corrosion-resistant flanges.Applications: Combined Cycle Gas Turbines: F321 flanges in high-temperature steam piping (superheated steam up to 550°C) at EGAT’s Bang Pakong, Nong Khae, and Si Racha power plants Coal-Fired Power Plants: F304 and F316L flanges in flue gas desulfurization (FGD) systems handling corrosive sulfuric acid condensate at Mae Moh and Krabi power plants Biomass Cogeneration: F321 flanges in high-pressure steam lines at sugar mills and palm oil processing plants throughout Thailand Geothermal Potential: F316L and duplex flanges for future geothermal projects in northern Thailand Cooling Water Systems: F316L flanges for seawater cooling circuits in coastal power plants at Laem Chabang and Bang Saen
Petrochemical Processing	Thailand’s petrochemical industry, concentrated in the Map Ta Phut Industrial Estate and Rayong Province, is the largest in Southeast Asia. The Eastern Economic Corridor (EEC) hosts major chemical complexes requiring corrosion-resistant piping components.Key Installations: PTT Global Chemical (PTTGC): Olefins complex, polyethylene and polypropylene plants use F304L and F316L flanges for ethylene/propylene handling, cooling water systems, and waste treatment SCG Chemicals: Integrated petrochemical complex employs F321 flanges in high-temperature cracking furnaces and F316L in chlor-alkali production IRPC (Thai Oil Group): Aromatics complex and paraxylene production units utilize F316L flanges for corrosive chemical streams Siam Cement Group: Chemical production facilities use F304 flanges for general chemical processing and F316L for corrosive media Applications: Ethylene and propylene production crackers Aromatic hydrocarbon (benzene, toluene, xylene) production Polymer production (PVC, polyethylene, polypropylene) Phenol and acetone plants Styrene monomer production Chemical storage tank connections (F316L for aggressive chemicals)
Water & Wastewater Treatment	Thailand’s expanding urban population and industrial growth drive demand for water infrastructure improvements across Bangkok Metropolitan Region and provincial centers.Applications: Desalination Plants: Coastal locations use F316L flanges in seawater intake, reverse osmosis (RO) feed systems, and brine discharge piping Municipal Water Treatment: Bangkok Metropolitan Administration (BMA) water treatment plants use F304 flanges for chlorine dosing systems and F316L for ozone generation equipment Wastewater Treatment Plants: Industrial estates in Rayong, Chonburi employ F316L flanges in aeration systems and F304 in chemical dosing Industrial Effluent Treatment: Petrochemical plant wastewater facilities use F316L for biological treatment and membrane systems

Frequently Asked Questions (FAQs)

Q1: What stainless steel grades are best for Thailand’s marine environment?: for thailand’s coastal and offshore applications, particularly in the gulf of thailand, astm a182 f316/f316l stainless steel flanges are recommended for superior chloride-induced pitting and crevice corrosion resistance. for severe marine or offshore conditions, duplex f51 or super duplex f53/f55 offer higher corrosion resistance and strength. f304/f304l is suitable for inland applications away from coastal salt exposure.
Q2: How long does delivery take to Map Ta Phut and Rayong petrochemical complexes?: sea freight to map ta phut port takes 20-24 days from order confirmation, including 2-3 weeks manufacturing plus 7-10 days sea transit from indian ports. customs clearance: 2-4 days; inland transport to rayong: 1-2 days. air freight to suvarnabhumi airport reduces delivery to 5-7 days for urgent requirements.
Q3: Do your stainless steel flanges comply with PTT and SCG specifications?: yes, our flanges are manufactured to asme b16.5 and astm a182 standards, accepted by ptteP, ptTGC, scg chemicals, irpc, and other major thai operators. complete material traceability with en 10204 3.1 mtc is provided. third-party inspection by tuv, lloyd’s register, bureau veritas, or sgs is available as specified.
Q4: Can you supply flanges with special heat treatment for high-temperature petrochemical applications?: yes, f321 (titanium-stabilized) stainless steel flanges undergo solution annealing followed by stabilization annealing for high-temperature petrochemical furnaces, refinery heaters, and power plant superheated steam lines. heat treatment charts and additional stress relief can be provided as required.
Q5: What documentation do you provide for import into Thailand?: we provide full documentation including mtc per en 10204 3.1, dimensional inspection reports, pmi test reports, ndt reports (lpi/ut as applicable), commercial invoice with hs codes, packing list, bill of lading, certificate of origin form e (asean preferential tariff), and fumigation certificate for wooden packaging. pdf copies are provided pre-shipment; originals accompany cargo.
Q6: Do you offer duplex and super duplex stainless steel flanges for offshore applications?: yes, astm a182 f51 (duplex 2205), f53, and f55 (super duplex) flanges are supplied for thailand’s offshore oil and gas platforms. these grades have double the yield strength of austenitic stainless steel and superior resistance to stress corrosion cracking and chloride corrosion. complete material traceability and impact testing for subsea applications are available.
Q7: What are your payment terms for Thailand customers?: standard terms: 30-50% advance via proforma invoice, balance against copy of shipping documents before cargo arrival. established customers may request extended credit. payments accepted via t/t, lc, or mutually agreed methods.
Q8: Can you manufacture flanges to DIN or EN standards for European equipment in Thailand?: yes, we can produce flanges to din 2527, din 2628, or en 1092-1 standards if required for integration with european equipment. dual-certification (asme and din) is also available. please specify required standard when requesting a quotation.

GET A QUOTE

Werner Flanges offers fast, competitive quotations for stainless steel flanges with delivery to anywhere in Thailand. Our experienced export sales team understands the requirements of Thai industrial buyers and responds promptly to inquiries.

How to Request a Quote:

Email: sales@wernerflanges.com