Turnon Alloys delivers high-quality Threaded Flanges designed for maximum strength, durability, and easy installation. Threaded flanges, also known as screwed flanges, are ideal for piping systems where welding is not feasible. These flanges are threaded on the inner bore to match the external threading on the pipe, enabling a tight, secure fit without welding, reducing risk in flammable or high-pressure applications.

Threaded Flanges Stockists at Turnon Alloys specialize in fabricating these flanges in compliance with international standards such as ASTM A105, ASTM A182 F304, F316, and ASME B16.5. These forged fittings are widely used in industries like oil & gas, chemical processing, and water treatment, where reliable sealing and mechanical strength are essential.
A Threaded Flanges Suppliers benefit lies in the ease of assembly and disassembly. These flanges offer significant time and cost savings, especially in maintenance operations. They are an excellent choice for low-pressure systems and are preferred in explosive zones due to their no-weld configuration, which reduces the risk of ignition.
Turnon Alloys is recognized globally as one of the trusted Threaded Flanges Stockists offering a complete range of sizes and pressure ratings from Class 150 to Class 2500. Our flanges are manufactured under stringent quality checks, ensuring durability and dimensional accuracy. Grades such as ASTM A182 F304/F316 and ASTM A105 are most in demand due to their corrosion resistance, tensile strength, and compatibility with a variety of industrial media.
As Threaded Flanges Exporters, we ship to over 50 countries across North America, Europe, Middle East, and Asia. Depending on the region, these flanges may be referred to as screwed flanges, BSP threaded flanges, NPT flanges, or DIN 2565 PN6 threaded flanges. Our flanges meet international specifications including ANSI B16.5, EN 1092-1, JIS B2220, and BS 4504, making them suitable for global projects.
We offer a wide product range that includes socket weld flanges, slip-on flanges, weld neck flanges, blind flanges, and threaded flanges in pressure classes ranging from 150 to 2500. All products are manufactured using strict quality procedures under ISO and API certification standards, backed by full traceability and mill test certification.
Specification Of Threaded Flanges
Grades | ASTM A105, ASTM A350 LF2(low - temperature carbon steel), ASTM A350 LF3(low - temperature carbon steel), ASTM A694 F42, F46, F52, F60, F65, F70, ASTM A182 F1, F5, F9, F11, F12, F22, F91, ASTM A182 F304, 304L, 304H, ASTM A182 F316, 316L, 316Ti, ASTM A182 F310, 310S, ASTM A182 F321, 321H, ASTM A182 F347, 347H, ASTM A182 F904L, ASTM A182 F44, F45, F51, F53, F55, F60, F61, ASTM SB 61, SB62, SB151, SB152, ASTM SB564, SB160, SB472, SB162 |
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Size | 1/8" NB to 48" NB |
Type |
Carbon Steel Flanges
Alloy Steel Flanges Nickel Alloy Flanges Copper Alloy Flanges |
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