Manufacturer of Stainless Steel 304L Flanges

The stainless steel flange is a class 150 stainless steel 304L channel fitting with female National Pipe Taper strings used to join two areas of a piping framework. This strung flanges has female NPT strings for joining with the mating pipe and jolt openings for interfacing with level surfaces or different flangess. Made of stainless steel 304L, the low carbon substance of this fitting guarantees more prominent consumption resistance than 302 evaluation steel. This class 150 fitting meets steel 304 quality measures, 304L additional low carbon models, and benchmarks ASTM A182 and ASME SA182 for quality confirmation. Class is a standard identifying with resilience, development, measurement, and divider thickness, yet it is not an immediate estimation of greatest working weight.

Pipe fittings are parts utilized for associating, ending, controlling stream, and altering the course of channeling in various commercial ventures. At the point when acquiring channel fittings, consider the application, as this will influence material sort, shape, estimate and required solidness. Fittings are accessible strung or unthreaded, in numerous shapes, styles, sizes, and plans.


Table 1. Composition ranges for Stainless Steel 304L Flanges

Grade 304l C Mn Si P S Cr Mo Ni N
min. - - - - - 18.0 - 8.0 -
max. 0.030 2.0 0.75 0.045 0.030 20.0 - 12.0 0.10

Table 2. Mechanical properties of Stainless Steel 304L Flanges

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
304L 485 170 40 92 201
304H also has a requirement for a grain size of ASTM No 7 or coarser.

Table 3. Physical properties of Stainless Steel 304L Flanges

Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (m/m/0C) Thermal Conductivity (W/m.K) Specific Heat 0-1000C (J/kg.K) Electrical Resistivity (n.m)
0-1000C 0-3150C 0-5380C at 1000C at 5000C
8000 193 17.2 17.8 18.4 16.2 21.5 500 720

Table 4. Grade specifications for Stainless Steel 304L Flanges

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
304L S30403 304S11 - 1.4306 X2CrNi19-11 2352 SUS 304L
These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.

Table 5. Standard specifications for Stainless Steel 304L Flanges

Designation A 182 / A 240, SA 182 / SA 240
Class 150#, 300#, 400#, 625#, 900#, 1500# & 2500#
Size 1/2" NB TO 48" NB
Standards ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings, ASTM, ASME Flanges, ANSI Flanges, DIN Flanges, EN Flanges, BS Flanges etc.
Grade A 182 304L

Types of Stainless Steel 304L Flanges

   SS 304L Expander Flanges
   Stainless Steel 304L Weldo / Nipo Flanges
   SS 304L WNRF Flanges
   Stainless Steel 304L Ring Type Joint Flanges
   SS 304L Weld Neck Flanges Series A or B
   Stainless Steel 304L Spades Ring Spacers Flanges
   SS 304L Threaded Flanges
   Stainless Steel 304L Long Neck Weld Flanges
   Stainless Steel 304L Groove & Tongue Flanges
   SS 304L SWRF Flanges
   Stainless Steel 304L SORF Flanges
   SS 304L Flat Flanges

   Stainless Steel 304L Forged Flanges
   SS 304L High Hub Blinds Flanges
   Stainless Steel 304L Blind Flanges
   SS 304L Spectacle Blinds Flanges
   Stainless Steel 304L Reducing Flanges
   SS 304L Loose Flanges
   SS 304L Orifice Flanges
   Stainless Steel 304L RTJ Flanges
   SS 304L Socket Weld Flanges
   Stainless Steel 304L Screwed Flanges
   SS 304L Slip On Flanges
   Stainless Steel 304L Weld Neck Flanges
   Stainless Steel 304L Flange Facing Type & Finish
   SS 304L Lapped Joint Flanges
   SS 304L Square Flanges

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  •         47, 2st Carpenter Street
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