Stainless Steel Flange

Stainless steel 316 flange

Stainless steel 316 flange

Custom Stainless Steel Flange

Ming Xiao Mfg have a freind factory which specialize in Stainless Steel Flange & Rings manufacturing,the Flanges and Rings are made from hot forging, then CNC turning & machining.

Flanges are disc-shaped parts that are most common in pipeline engineering. The flanges are used in pairs and with the matching flanges on the valve. In plumbing, flanges are primarily used for pipe connections. In the pipelines that need to be connected, a variety of flanges are installed. The low-pressure pipelines can use wire-bonded flanges, and the welding flanges are used at pressures above 4 kg. A gasket is placed between the two flanges and then bolted. Different pressure flanges have different thicknesses and use different bolts.

Pumps and valves, when connected to the pipeline, the parts of these equipment are also made into the corresponding flange shape, also known as flange connection. Connection parts that are closed at the same time by bolting on both planes are generally referred to as “flanges”. For example, the connection of ventilation ducts may be referred to as “flange parts”. However, this connection is only a part of the equipment, such as the connection between the flange and the water pump, it is not good to call the pump “flange parts”. Smaller such as valves, etc., can be called “flange parts”.


 ANSI Stainless Steel Forged Flange
Best quality and competitive price
Description Stainless steel Flange
Products category SOP SOH BL WN MSS API AWWA LONGWN Flange
Airtight surface type
and customers’ drawings for special use
Technology forged Flange
certificate ISO9001:2000,QS-9000,CNAS, TUV, BV
accessories and access to quality inspection
Inspections Factory in-house or Third Party inpection
Our main markets Europe, Middle East Asia,Korea,etc
Material 316L, 316, 304L, 304,
Class 150#,300#,400#,600#,900#,1500#,2500#
Production process raw material–cutting–heating–forging–heat treatment
Application Petroleum, chemical, power, gas, metallurgy,
shipbuilding,construction, etc
Delivery 7-45 Days
Remarks As customers’ request


1) ANSI B16.5, ASME B16.47 FLANGE

Size range: 1/2″ to 24″  DN15 to DN600

Design: welding neck, slip on, blind, socket welding, threaded, lap-joint

Pressure: 150#, 300#, 600#,900#,1500#, 2500#

Wall thickness for welding neck flange: STD, SCH40, SCH80, SCH160. SCHXXS

Material: stainless steel  304/304L, 316/316L

Coating: Bright

Package: seaworthy plywooden case, wooden pallet


2) EN1092-1 FLANGE

Size range: DN15 to DN600

Design: type01 plate flange, type02 loose flange, type05 blind flange, type11 welding necking

type12 slip on flange, type 13 threaded flange

Pressure: PN6, PN10, PN16, PN25, PN40, PN64, PN100

Material: carbon steel C22.8, S235, S235JR, P235GH, stainless steel: 304/304L, 316/316L

Coating:   Bright

Package: sea worthy plywooden case, wooden pallet



Size range:   DN15 to DN600

Design: slip on flange DIN2573,2576,2502,2503, 2543,2545

welding neck falnge DIN2631, 2632,2633,2634,2635

blind flange DIN 2527 PN6, PN10, PN16, PN25, PN40

threaded falnge DIN2565,2566,2567,2567

loose flange DIN 2641,2642,2656,2673

Material: stainless steel 1.4301, 1.4404

Coating: rust-proof oil, transparent paint, cold and hot galvanize

Package: sea worthy plywooden case, wooden pallet



Size range: DN15 to DN 2000

Design : plate falnge 12820-80, welding neck flange 12821-80

Pressure: PN6, PN10, PN16, PN25, PN40

Material: stainless steel 304/304L, 316/316L

Coating: rust-proof oil, cold and hot galvanize

Package: sea worthy plywooden case, wooden pallet


Size ragne : 15A to 2000A

Design: SOP, BIND, SOH,

Puressure: 1K, 2K, 5K, 10K, 16K, 20K, 30K, 40K, 210k, 280k, 350k

Material: stainless  steel SUS304, SUS316

Coating : bright

Packing: sea worthy plywooden case, wooden pallet

Hot forging the rough round rings, then Machining by CNC turning Machines,Drilling holes…

Follow are the informations about our precision parts by CNC machining.


● CNC Precision machining parts accuracy

Machining accuracy: IT6 level, such as the 10mm dimensions, tolerances can be done0.009mm, 20mm size tolerances can be 0.013mm

● Maximum size of Precision parts suit to CNC machining

Lathe parts (turning parts , such as axes, coupling,bushing, thread rod , etc.) followingthe outer diameter of 300mm, length less than 150mm

Milling parts (box, cylinder, etc.) 800mm long, 330mm wide, 120mm high.

Stianless Steel 304 / 304L, 316 / 316L

Can provide Material certificates of EN10204 3.1, PED4.3, Materials comply with CNAS, TUV, BV, ABS,
accessories and access to quality standards.

Lead time for custom samples of metal machined parts is 15days.

Lead time for mass production:generally a order is 30-60days, if machining process is too complicated or quantity is very high,the lead time will longer.

We can provide COC (material certificates), Test Report, ROHS / SGS

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