304 Austenitic Blind Flange

QS Flange: Fujian 304 Austenitic Blind Flange

A182 F304 austenitic stainless steel blind flange, 6 inch 150LB RF per ANSI B16.5, for blocking and isolating pipe lines.

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One-Minute Overview

Solid A182 F304 austenitic stainless steel disk that blocks flow at a 6 inch flange joint.
Rated 150LB with a raised face, dimensioned to ANSI B16.5.
Austenitic 304 steel resists corrosion in water and general chemical service.
Install where a line must be isolated for inspection, pressure testing or future tie-in.

The 304 austenitic blind flange closes a 6 inch piping joint with a solid plate instead of a matching pipe run. Forged from A182 F304 austenitic stainless steel, it delivers the corrosion resistance of 304 steel in a pressure-boundary part. The raised face matches standard 150LB flange facings, and every dimension follows ANSI B16.5 so the blind mates with standard weld neck, slip on and socket weld flanges.

Name: 304 Austenitic Blind Flange
Size: 6"
Pressure: 150LB
Material: A182 F304
Flange Face: RF
Standard: ANSI B16.5

Blind flanges go at the end of a header, at a future branch point, or across a valve during maintenance so a section can be opened safely. The austenitic structure of A182 F304 keeps the part tough at low temperature and suits water systems where carbon steel would corrode. Bolt with the stud bolting of the adjoining flange class and tighten in a star pattern to the gasket guidance.

FAQ

Q1. Which standard governs this blind flange's dimensions and facing?

Every dimension, the raised-face finish and the 150LB pressure rating follow ANSI B16.5. That same standard fixes the bolt circle and drilling, so the blind mates directly with standard 6 inch weld neck, slip on and socket weld flanges of the matching class, with no adapter and no special gasket required.

Q2. Can I bolt it straight onto the flanges already on my line?

Yes. ANSI B16.5 fixes the bolt pattern and drilling for this 6 inch 150LB blind, so it drops into any standard joint of the same size and class. Match the raised face to the mating flange, fit the gasket specified for the service, and the bolting sequence is the same as any other flange joint on the site.

Q3. Why pick a 304 austenitic blind instead of a plain carbon steel one?

The disk is forged from A182 F304 austenitic stainless steel, which resists corrosion in water and general chemical service. When the line carries corrosive media or the joint sits outdoors, that corrosion resistance keeps the pressure boundary sound and avoids the rust a carbon steel blind can pick up in the same position.

Q4. What is the smallest order I can place?

Standard flange insulation gasket kits start at one set, and standard gaskets, studs, washers and sleeves start at one piece. Parts made to your drawing or to a non-standard bolt pattern are quoted one by one, because the minimum really depends on the material and the tooling involved.

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