Short Description

Model No.: F317L-LWNRF-Flange-DN50-Class300

China LWN Flange Manufacturer www.steeljrv.com offers SA182 F317L LWNRF Flange, DN50, Class300.

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Key Specifications / Features

Type: F317L LWNRF Flange
Material: F317L (UNS S31703)
Standard: ASME, etc
Pressure: 300#
Size: 2″ (DN50)
Length: 200L, 207.6L, 214.3L, 267.5L, 319.8L, 320.8L

Long neck flange blank forged as a whole

2018424205339339969 - SA182 F317L LWNRF Flange DN50 Class300

Many factories make long neck flanges by welding the steel pipe inside the neck of the flange, so the quality of the long neck flanges made is very poor (easy to cause safety accidents), but the price is cheap. Yaang’s long neck flanges are integrally forged, and the quality is guaranteed.

20184241959425674930 - SA182 F317L LWNRF Flange DN50 Class300

The chemical composition of grade 317L stainless steel

Element Content (%)
Iron, Fe Balance
Chromium, Cr 18-20
Nickel, Ni 11-15
Molybdenum, Mo 3-4
Manganese, Mn 2
Silicon, Si 1
Phosphorous, P 0.045
Carbon, C 0.03
Sulfur, S 0.03

The mechanical properties of grade 317L stainless steel

Properties Metric Imperial
Tensile strength 595 MPa 86300 psi
Yield strength 260 MPa 37700 psi
Modulus of elasticity 200 GPa 29000 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30
Elongation at break (in 50 mm) 55% 55%
Hardness, Rockwell B 85 85

PT (Penetrant Testing)

Penetrant Testing, which is called PT, is the earliest nondestructive testing method for the application of Nondestructive Testing. Because of its simple and easy operation, it is widely used in all fields of modern industry.

The main application of osmosis detection is to check the surface openings of metal (stainless steel, aluminum alloy, magnesium alloy, copper alloy, heat-resistant alloy, etc.) and non metal (plastic, ceramic, etc.), such as surface cracks.

In the process of manufacturing and operation of industrial products (pipe fittings, flanges, steel pipes), surface cracks may be produced on the surface of a few microns on the surface. Fracture mechanics research shows that these micro cracks are the source of crack in equipment under bad working conditions.20184242021212340167 - SA182 F317L LWNRF Flange DN50 Class300

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