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Forged Duplex A182 F60 Gate Valve

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Forged Duplex A182 F60 Gate Valve

The opening and closing component of forged steel gate valves is the gate plate, and the direction of movement of the gate plate is perpendicular to the direction of the fluid. Forged steel gate valves can only be fully open and fully closed, and cannot be adjusted or throttled. The gate plate of forged steel gate valve has two sealing surfaces, and the most commonly used mode of gate valve is that the two sealing surfaces form a wedge shape, and the wedge angle varies with the valve parameters.

    Forged steel gate valve refers to a valve whose gate moves vertically along the centerline of the passage. Forged steel gate valves are mainly used for cutting off in pipelines. Forged steel gate valve is a widely used valve, and it is generally used for cutting devices with a diameter of DN ≤ 50. Forged steel gate valves are quite common.

    Duplex stainless steel is a stainless steel in which half of the ferrite phase and half of the austenite phase are present in its solid quenching structure, with a minimum phase content of 30%. Duplex stainless steel is formed by increasing the Cr content or adding other ferrite elements on the basis of 18-8 austenitic stainless steel. It not only has a bi-directional structure of austenite and ferrite, but also saves Ni alloy. Due to the characteristics of the two-phase structure of duplex stainless steel, by correctly controlling the chemical composition and heat treatment process, duplex stainless steel can combine the advantages of ferritic stainless steel and austenitic stainless steel. The presence of austenite in duplex stainless steel reduces the brittleness of Cr ferrite and the tendency for crystal growth, while maintaining excellent toughness and welding performance; The presence of ferrite enhances the yield strength, resistance to intergranular corrosion, and resistance to chloride stress corrosion of austenite.


    Diameter: 1/2" to 2" ( from DN15mm to DN50mm)
    Pressure: 150LB-2500LB (PN16-PN420)
    Connection method: flanged end, threaded end, welded end.
    Drive mode: manual, pneumatic, electric, etc.
    Applicable temperature: -40 ℃~550


    Design specifications: JB/T 7746, API602
    Structural length: JB/T 7746, factory specifications
    Socket/thread: JB/T1751/GB7306, ANSI B16.11/B2.1
    Testing and Inspection: JB/T 9092, API598

    Additional Features

    Compared with austenitic stainless steel, the advantages of duplex stainless steel are as follows:

    Firstly, the yield strength is more than twice that of ordinary austenitic stainless steel, and it has sufficient plasticity and toughness required for forming. The wall thickness of storage or pressure vessels made of duplex stainless steel is reduced by 30-50% compared to ordinary austenite, which is beneficial for reducing costs.

    Secondly, it has excellent resistance to stress corrosion cracking, even duplex stainless steel with the lowest alloy content has higher resistance to stress corrosion cracking than austenitic stainless steel, especially in environments containing chloride ions. Stress corrosion is a prominent problem that ordinary austenitic stainless steel is difficult to solve.

    Thirdly, the corrosion resistance of 2205 duplex stainless steel, which is most commonly used in many media, is superior to that of ordinary 316L austenitic stainless steel. Super duplex stainless steel has extremely high corrosion resistance and can even replace high alloy austenitic stainless steel or even corrosion-resistant alloys in some media.

    Fourthly, it has good resistance to local corrosion. Compared with austenitic stainless steel with similar gold content, duplex stainless steel has better wear resistance and fatigue corrosion resistance than austenitic stainless steel.

    Fifth, the coefficient of linear expansion is lower than that of austenitic stainless steel, similar to carbon steel, suitable for connecting with carbon steel, and has important engineering significance, such as producing composite plates or linings.

    Sixth, regardless of whether under dynamic or static load conditions, duplex stainless steel has higher energy absorption capacity than austenitic stainless steel, which has practical application value for structural components to cope with unexpected accidents such as collisions and explosions.

    Main Components

    F60 Forged Gate Valve
    NO. Part Name Material
    1 Body A182 F60
    2 Seat Ring A182 F60
    3 Wedge A182 F60
    4 Stem A182 F60
    5 Gasket S32205+Graphite
    6 Bonnet A182 F60
    7 Hex.bolt A193 B8M
    8 Gland A182 F60
    9 Gland Eyebolt A193 B8M
    10 Gland Flange A182 F60
    11 Gland Nut A194 8M
    12 Yoke Nut A194 8M
    13 H.W. Nut C.S
    14 Nameplate S.S
    15 Handwheel A197
    16 Packing Graphite


    F60 dual phase steel has a wide range of application areas:

    1. F60 dual phase steel has good corrosion resistance in neutral chloride environments and is suitable for fields such as seawater treatment equipment and offshore platforms.

    2. F60 dual phase steel can withstand high temperature, high pressure, and corrosive media, and is suitable for refining equipment, chemical equipment, chemical reactors, etc.

    3. F60 dual phase steel has excellent corrosion resistance and stress corrosion cracking resistance during oil and gas extraction and transportation, and is suitable for oil and gas pipelines, storage tanks, etc.

    4. F60 dual phase steel can resist corrosion and wear in pulp and paper production, and is suitable for pulp making equipment, pulp conveying pipelines, etc.

    5. F60 dual phase steel can withstand strong acid and alkali environments during the production of fertilizers and urea, and is suitable for fertilizer equipment, urea plants, etc.

    6. F60 dual phase steel has good corrosion resistance in marine environments and is suitable for seawater treatment equipment, marine platforms, ships, etc.

    7. F60 dual phase steel can withstand high temperature, high pressure, and corrosive media, and is suitable for energy equipment, environmental protection equipment, etc.

    8. F60 dual phase steel has excellent hygiene and corrosion resistance, suitable for food equipment, pharmaceutical equipment, etc.

    9. F60 dual phase steel can also be used in high-strength structural components, submarine pipelines, flue gas desulfurization, infiltration desalination equipment, sulfuric acid plants, and other fields.

    In summary, F60 (2205, S32205) dual phase steel has broad application prospects in multiple industrial fields, and its excellent corrosion resistance and mechanical properties make it an ideal material choice.