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TOBO International Trading(Shanghia)Co.,Ltd       Tianda Oil Pipe Co., Ltd

TOBO Pipeline Equipment Co.,Ltd        TPCO & TISCO Pipe(Tianjin)Co.,Ltd.                        


May 17, 2022

ASME B16.5 Class 150 Carbon Steel Weld Neck Flanges Size 1-60 Inch , Max Diameter 1M

ASME B16.5 Class 150 Carbon Steel Weld Neck Flanges Size 1-60 Inch , Max Diameter 1M



Detailed Product Description

Size: 1/2’’-60’’ Material: A105 Cabon Steel
DN: 15-1500 Standard: DIN,EN,ASTM,BS,JIS,GB,etc.
Product Type: Steel Flange    

Forged Steel Flanges ASME B16.5 Class 150 Forged Carbon Steel Slip On Welding Flange Size1-60inch



1 material Cast iron, grey iron, ductile iron, Steel, Stainless steel, brass, copper, aluminum, zinc etc
2 process sand casting, precision casting, investment casting, lost wax casting, die casting, forging, stamping, machining etc
3 machine lathe, CNC, drilling machine, milling machine, boring machine, planting machine, machining center etc
4 tolerance casting:0.5mm, machining:0.05mm, finish machining:0.005mm
5 capacity max diameter:1M, max weight:200KG
6 surface treatment powder coating, painting, spraying, galvanization
7 standard JIS, ANSI, DIN, BS, GB


Term Alibaba suplier forged 304 316 stainless steel flange price
Material Aluminum, aluminum alloy, steel, Stainless steel, Iron, titanium alloy, copper, brass, phosphor bronze, engineering plastic like POM, ABS, PEEK, PVC, etc.
Tolerance +/-0.002mm for metal material; +/-0.05mm for plastic material
Surface treatment Anodizing, chrome plating, silver plating, polishing, galvanized, electroplating, passivation, powder coating, spraying, and painting, etc
Main process CNC Machining, turning, lathe, milling, drilling, grinding, boring, stamping, threading, tamping, EDM, wire walking, laser cutting, laser marking, NC bending, and surface treatment
Quality control

Strictly Quality control in the whole process, from material to packing for the precision edm parts

Industry CT Scanning,3D projector, x-ray technology, coordinate-measuring machine

Usage Inspection& Electric Instrument, Medical Equipment, Construction Equipment, Home appliances field and so on
Customized drawings

AutoCAD, JPEG, PDF, STP, IGS, and most other file formats are accepted


Steel Flange, Compact Flanges 1/2Inch - 48Inch And 150# To 2500# With A182 / F51 / Inconel 625.


Compact Flanges (RCF ), NORSOK L005 , A182 F316/316L, F51, F53, F55, Inconel 625, Incoloy 825, A105, A350 LF2, LF52-70


Based on NORSOK L005 code, suitable for critical sealing applications with high thermal expansion, cyclic loading such as Risers, single point mooring systems, manifolds, X-Trees, subsea pipelines, heat exchangers and a multitude of process piping systems.

· RCF Advantage

o Space saving

§ Weight saving up to 70%~80% than ANSI flanges

o Double Independent Seals make it safer

§ Positive sealing method

o Integrated sealing system (both inside and outside)

§ Larger range in design temperature and pressure

· RCF Working Principle

o The RCF compact flange design principle is that the flange face includes two independent seals. The first seal is created by application of seal seating stress at the flange heel. The main seal is the IX seal ring. The seal ring force is provided by the elastic stored energy in the stressed seal ring. Any heel leakage will give internal pressure acting on the seal ring inside intensifying the sealing action.


· RCF Size and Pressure Rating

o 1/2”~48” in size and Class 150# to 2500# in pressure rating.

o Bigger size and higher pressure rating on request.

· RCF Materials

o ASTM A105, A350 LF2, LF6, A694 F52~F70

o AISI 4130, AISI 8630

o A182 F316/316L, F51, F53, F55, Inconel 625, Incoloy 825.

o Other material on request

o RCF IX seal ring, axial forces are exerted on the taper of the metal seal ring and translated into a radial sealing force. Furthermore with increased pre-load, the bevel is closed and face to face contact is achieved at the outer wedge while most of the bolt pre-load is transferred as compressive forces between the flange faces at the heel.

· RCF Design and Verification

o Yuhong Special Steel provides calculation service based on ASME section VIII Division 1, 2 and 3. Also we have ANSYS software engineers to do the analysis and design verification

Contact Details