Series A/B Flanges Suppliers in Thailand, ASME B16.5 Flanges, Stainless Steel 304, 316, 321, 347, 904L Flange in Bangkok
Omaa Metal Sources delivers high-performance industrial flanges to meet the diverse engineering requirements of Thailand’s growing infrastructure and energy sectors. Our products are designed to serve critical installations such as petrochemical plants in Rayong, LNG terminals in Map Ta Phut, refineries in Sriracha, and power projects across Bangkok, Chiang Mai, and Songkhla. Built to the highest international codes, our flanges ensure mechanical integrity in high-pressure, high-temperature, and corrosive environments.
We manufacture and supply flanges in size ranges from 1/2″ NB to 60″ NB, with pressure ratings from 150# to 2500# and PN6 to PN250. Designed in accordance with ASME B16.5, B16.47 Series A/B, DIN, EN 1092-1, JIS B2220, and API 6A, our flanges are optimized for seamless integration in global-standard pipeline systems. From Weld Neck and RTJ flanges for hydrocarbon transmission, to Socket Weld and Lap Joint flanges for compact process skids, we ensure every flange is machined for dimensional accuracy and operational reliability.
We offer flanges in a full range of metallurgies including Carbon Steel (A105, LF2), High-Yield CS (A694 F52–F70), Stainless Steel (304, 316, 321, 347), and exotic grades such as Duplex & Super Duplex (F51, F53, F55), Nickel Alloys (Inconel, Hastelloy, Monel), and Titanium Grades. Each product undergoes hydrostatic, ultrasonic, and PMI testing, and comes with complete traceability per ASTM, API, and EN material standards. Get a Quote.
Varieties of Flanges Exported to Thailand
Industrial Flange Specifications in Thailand
| Specification | Details |
|---|---|
| Size Range | 1/2” (15 NB) to 60” (1500 NB) & Custom Sizes |
| Class / Pressure Rating |
ANSI/ASME: 150#, 300#, 600#, 900#, 1500#, 2500# API: 2000#, 3000#, 5000#, 10000#, 15000# DIN: PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160, PN250 |
| Standards / Dimensions |
ASME B16.5 (Up to 24”) ASME B16.47 (Series A & B) (Above 24”) MSS SP-44 API 6A EN 1092-1 BS 4504 JIS B2220 DIN 2527, DIN 2631-2635 AWWA C207 |
| Connection Type | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Material Standards |
ASTM A105 / A105N (Carbon Steel) ASTM A350 LF2 (Low-Temperature Carbon Steel) ASTM A182 F304 / F304L / F316 / F316L (Stainless Steel) ASTM A694 F42, F52, F60, F65, F70 (High Yield Carbon Steel) ASTM A182 UNS S31803 / S32205 / UNS S32750 / UNS S32760 (Duplex & Super Duplex Steel) ASTM B564 UNS N06625, N08825 (Inconel & Incoloy) ASTM B381 (Titanium Gr.2, Gr.5) |
| Materials & Grades |
Carbon Steel: A105, A350 LF2, A694 F52-F70 Stainless Steel: 304, 304L, 316, 316L, 321, 347, 904L Duplex & Super Duplex Steel: F51, F53, F55 Alloy Steel: A182 F1, F5, F9, F11, F22, F91 Nickel Alloys: Inconel 600/625, Monel 400/K500, Hastelloy C22/C276 Copper Alloys: Cu-Ni 70/30, Cu-Ni 90/10 |
Industries in Thailand We Serve
- Petrochemicals & Refining
- Oil & Gas Transmission
- LNG Terminals & Marine Facilities
- Power Generation (Thermal, Hydro, Gas)
- Water & Wastewater Management
- Food, Chemical & Fertilizer Manufacturing
Why Partner with Omaa Metal Sources for Flanges in Thailand?
- In-stock and custom flange options available
- Supply coverage across major cities: Bangkok, Rayong, Chonburi, Phuket, Chiang Ma
- International testing & compliance documentation provided
- Rapid response to project-based demands
- Decades of experience in global exports