Carbon Steel Slip-On Plate Flange ASTM A105

Short Description:

Product Name :Slip On Plate Flange,Plate flange for welding
Size:1/2"-48" DN15-DN1200
Sealing surface: Raised Face (RF), Full Face (FF)
Varieties: Class 150lb -Class 2500lb; PN2.5;PN6;PN10;PN16;PN25;PN40; 5K,10K,16K,20K
Material: Carbon steel ASTM A105. ASTM A350,Q235,P245GH
Standard AWWA C207 ;GOST12820,GOST33259;DIN2501,DIN2502,DIN2503;JIS B2220, JIS B2238; BS 4504,BS10;EN1092-1
Surface;Anti-rust oil, clear lacquer, Black lacquer, Yellow lacquer,hot-dipped Galvanized,electrical galvanized
Connection;Welding, Threaded
Technical Forged, Casting
Application;Water works, Shipbuilding industry, Petrochemical & Gas industry, Power industry, Valve industry,and general pipes connecting projects etc.
Package;"1. Wooden Case  2. As Customers' Requirements"

Product Detail





Product Tags

Product Data

Product Name Slip On Plate Flange,Plate flange for welding
Size 1/2″-48″  DN15-DN1200
Varieties Class 150lb -Class 2500lb
Material Carbon steel ASTM A105. ASTM A350,Q235,P245GH
Stainless steel F304/304L, F316/316L,321
Standard AWWA C207
JIS B2220, JIS B2238
BS 4504,BS10
Surface Anti-rust oil, clear lacquer, Black lacquer, Yellow lacquer,hot-dipped Galvanized,electrical galvanized
Connection Welding, Threaded
Technical Forged, Casting
Application Water works, Shipbuilding industry, Petrochemical & Gas industry, Power industry, Valve industry,and general pipes connecting projects etc.
Package 1. Wooden Case
2. As Customers’ Requirements

Product Introduction

Carbon steel slip on plate flange is a type of flat welding flange made of carbon steel. It is a commonly used flange connection equipment, commonly used to connect equipment such as pipelines, valves, pumps, etc. It consists of two flange plates and sealing gaskets.


1. Material: Made of carbon steel material, with good mechanical properties and corrosion resistance.

2. Structure: The flange plate is welded flat, with straight inner holes and fixed holes at both ends, making it easy to connect with other equipment.

3. Sealing: The sealing between the flange and gasket can effectively prevent fluid leakage.

4. Welding mode: Flat welding mode is used for connection, with smooth and firm welds that can withstand high pressure and temperature.

5. Scope of application: Widely used in the industrial field, especially suitable for conveying pipelines of high-pressure, high-temperature, and high viscosity media.

Advantages and disadvantages:


1. Price economy: Compared to flanges made of other materials, carbon steel flanges have a relatively lower price and are suitable for projects with limited budgets.

2. High strength: Carbon steel has high strength and stiffness, which can meet some demanding engineering applications.

3. Good wear resistance: Carbon steel has good wear resistance and is suitable for some working conditions with high wear, such as ore processing, chemical industry, and other industries.

4. Good processing performance: Carbon steel is easy to process and manufacture, and can be customized and processed according to needs.


1. Poor corrosiveness: Carbon steel is prone to oxidation and corrosion, especially in humid or chemical environments, which can easily cause corrosion.

2. Large weight: Carbon steel has a relatively high density, so carbon steel flanges are relatively heavy and not suitable for projects with high weight requirements.

3. Relatively short lifespan: Due to the susceptibility of carbon steel to corrosion, the lifespan of carbon steel flanges is relatively short.
In summary, carbon steel flat welding flanges have the advantages of lower price, high strength, and good processing performance, but they also have the disadvantages of poor corrosion and relatively short lifespan, which need to be selected according to specific engineering needs.


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    1.Professional manufactory.
    2.Trial orders are acceptable.
    3.Flexible and convenient logistic service.
    4.Competitive price.
    5.100% testing,ensuring the mechanical properties
    6.Professional testing.

    1.We can guarantee the best material according to related quotation.
    2.Testing is performed on each fitting before delivery.
    3.All packages are adapt for shipment .
    4. Material chemical composition is conformed with international standard and environment standard.

    A) How can I get more details about your products?
    You can send an email to our email address. We will provide catalogue and pictures of our products for your reference.We can also supply pipe fittings, bolt and nut, gaskets etc. We aim to be your piping system solution provider. 

    B) How can I get some samples?   
    If you need, we will offer you samples for free, but new customers are expected to pay express charge. 

    C) Do you provide customized parts? 
    Yes, you can give us drawings and we will manufacture accordingly. 

    D) To which country have you supplied your products?
    We have supplied to Thailand, China Taiwan, Vietnam, India, South Africa, Sudan, Peru , Brazil, Trinidad and Tobago, Kuwait, Qatar, Sri Lanka, Pakistan, Romania, France, Spain, Germany, Belgium, Ukraine etc. (Figures here only include our customers in latest 5 years.). 

    E) I can’t see the goods or touch the goods, how can I deal with the risk involved?  
    Our quality management system conforms to the requirement of ISO 9001:2015 verified by DNV. We are absolutely worth your trust. We can accept trial order to enhance mutual trust.

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