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Reducing Flange

Your position: Home > Products  > Reducing Flange > A182 F316L STAINLESS STEEL FLANGES


  • Standard:ASTM A182
  • Size:
  • Pressure:
  • Specification:1/2” - 48”
  • Material:316L

Product Information





SpecificationsStainless Steel 316L Flanges
ASME B16.5 Stainless Steel 316L Flanges size range1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Stainless Steel 316L Flanges StandardsANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flanges.
Stainless Steel 316L Flanges Standard DIN6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
Stainless Steel 316L Flanges Standard ANSIClass 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Stainless Steel 316L Flanges Standard UNI6Bar 10Bar 16Bar 25Bar 40Bar
Stainless Steel 316L Flanges Standard JIS5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
Stainless Steel 316L Flanges Standard EN6Bar 10Bar 16Bar 25Bar 40Bar
Main TypesForged / Threaded / Screwed / Plate
Flange supporting materialGasket, Ring Joint, Flange Bolts
Stainless Steel 316L Pipe Flanges Test CertificatesEN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Production techniqueForged, Heat treated and machined
Connect Type/ Flange Face TypeRaised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, , Groove
Most common types of Stainless Steel 316L FlangesLap Joint Ring Flange (LJRF), Stainless Steel 316L Flanges
Socket Weld Ring Flange (SWRF), Stainless Steel 316L Flanges
Slip-On Ring Flange (SORF), Stainless Steel 316L Flanges
Blind Ring Flange (BLRF), Stainless Steel 316L Flanges
Threaded Ring Flange, Stainless Steel 316L Flanges
Ring Type Joint Flange (RTJF), Stainless Steel 316L Flanges
Weld Neck Ring Flange (WNRF), Stainless Steel 316L Flanges
TestDirect-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
OriginIndian / West Europe / Japan / USA / Korean
EquipmentPress machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc
Stainless Steel 316L Flanges StandardANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange, ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE,
BS Flange, EN Flange, API 6A Flange etc
B.S: BS4504 , BS3293, BS1560, BS10
AS 2129: Table D; Table E; Table H
ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48
ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
American standard (ANSI)
German (DIN)
British standard (BS)
Any other specilised flanges
DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638
The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203;UNI2276
Key markets and industries for Stainless Steel 316L FlangesNuclear power (mostly seamless).
Petrochemicals and acids.
Bitumen upgraders.
Heavy oil refineries.
Stainless Steel 316L Flanges ApplicationTo Connect Pipe & Tubes in Petroleum, Power, Gas, Metallurgy, Shipbuilding Construction, Chemical etc

Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175


A182 F316L Flanfes Chemical Composition:



A182 F316L Flanfes Mechanical Properties:

GradeTensile Str(Mpa) minYield Str 0.2% Proof(Mpa) minElong(% in 50mm) minHardness
Rockwell B maxBrinell max


Grade 316L, the low carbon version of F316L pipe flange has immunity against sensitisation, otherwise known as grain boundary carbide precipitation. Thus, the Gr F316L is extensively used in heavy gauge welded components, where the wall thickness can be over 6mm. The austenitic structure in the astm a182 f316l also gives this grades excellent toughness properties ,that can be witnessed at to cryogenic temperatures.


As compared to other chromium-nickel austenitic stainless steels, A182 F316L stainless steel offers a much higher creep strength, stress to rupture strength and tensile strength, even at elevated temperatures. The ss 316L flanges have an excellent performance in a broad range of atmospheric environments as well as many corrosive media.


Generally the werkstoff A182 F316L tends to be more resistant to corrosive media when compared to grade 304 stainless steel. Although these stainless steel 316L flanges are a subject to pitting & crevice corrosion in warm chloride environments, and to stress related corrosion cracking at temperatures above 60 °C, sa 182 F316L flange is considered resistant to potable water. The astm A182 Gr F316L is displays corrosion resistance in potable water, which can cantainup to about 1000 mg/L chlorides at ambient temperatures & gets reduced further to about 500 mg/L at 60 °C.


flange astm a182 f316l is usually regarded as the standard “marine grade stainless steel”.But the astm A182 grade F316L is not resistant to warm sea water. In many marine environments 316l ss flanges material does tend to exhibit surface corrosion. This surface corrosion usually visible as brown staining, which is especially associated with crevices and rough surface finish.


316L ss flanges exhibit good oxidation resistance in intermittent applications up to a temperature of 870 °C and in continuous service to 925 °C. Continuous use of flange astm A182 f316l between the temperature range of 425 °C - 860 °C is not recommended if subsequent aqueous corrosion resistance is important in any application. Many 316L stainless steel flanges manufacturers note that the alloy is more resistant to carbide precipitation and can be used in the above that temperature range.



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