Short Description

Model No.: F316L-WNRTJ-Flange-3/4"-FNPT-1"-CL1500

China Flange Manufacturer www.steeljrv.com offers ASTM A182 ANSI B16.5 F316L WNRTJ Flange, 3/4″, FNPT, 1″, CL1500.

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Key Specifications / Features

Type: 316L WNRTJ Flange
Material: 316L
Pressure: CL1500
Size: DN25 (1″)
Standard: ANSI
Ends: RTJ
Connection:FNPT

Chemical Composition and Mechanical Property for 316L

Steel Grade

Chemical Composition

Mechanical Performance

C(Max)

Si(Max)

Mn(Max)

P(Max)

S(Max)

Ni

Cr

N(Max)

Mo

Tensile Strength
(Min)

Yield Strength
(Min)

Mpa

Mpa

316L

0.03

0.75

2.00

0.045

0.03

10.0–14.0

16.0–18.0

0.1

2.00–3.00

485

170

     1505913188 3581 ringjointflange - ANSI B16.5 ASTM A182 F316L WNRTJ Flange 3/4" FNPT 1" CL1500

A ring joint flanges (RTJ) is used when a metal-to-metal seal between the mating flanges is required (which is a condition for high-pressure and high-temperature applications, i.e. above 700/800 C°).

A ring joint flange features a circular groove to accommodate a ring joint gasket (oval, or rectangular). As the two ring joint flanges are bolted together and then tightened, the applied bolting force deforms the gaskets inside the flange groove creating a very tight metal-to-metal seal. To make this happen, the material of the ring joint gasket has to be softer (more ductile) than the material of the flange.

RTJ flanges can be sealed by RTJ gaskets of different styles (R, RX, BX) and profiles (example: octagonal/oval for the R style).

The most common RTJ gasket is the R style with an octagonal section, as it ensures a very strong seal (the oval section is an older type). A “flat groove” design, however, accepts both RTJ gaskets having an octagonal or oval section.

Ring Joint flange - ANSI B16.5 ASTM A182 F316L WNRTJ Flange 3/4" FNPT 1" CL1500

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