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              2507气动高压截止阀


              • 应用领域 Applications

                1、纸浆和造纸工业

                2、海水淡化

                3、烟气净化

                4、热交换器

                5、化学品液货船管道系统

                6、海水系统等

                1.Pulp and paper industry

                2.Seawater desalination

                3.Flue gas purification

                4.Heat exchangers

                5.Chemical crystallizer cargo ship piping systems

                6.Seawater system, etc.

                 

                材料特性 Material Characteristics

                S32750是一种铁素体-奥氏体(双相)不锈钢,它综合了许多铁素体钢和奥氏体钢最有益的性能,由于该钢铬和钼的含量都很高,因此具有极好的抗点腐蚀、缝隙腐蚀和均匀腐蚀的能力。双相显微组织保证了该钢具有很高的抗应力腐蚀破裂的能力,而且机械强度也很高。

                机械特性:S32750具有很高的耐压强度、冲击强度及较低的热膨胀系数和较高的导热性。这些特性适用于很多结构零件及机械部件。

                S32750 is a ferritic-austenitic (duplex) stainless steel. It combines the most beneficial properties of many ferritic and austenitic steels. Because of its high chromium and molybdenum content, it has extremely high Good resistance to pitting, crevice and uniform corrosion. The dual-phase microstructure ensures that the steel has high resistance to stress corrosion cracking and high mechanical strength.

                Mechanical characteristics: S32750 has high compressive strength, impact strength, low thermal expansion coefficient and high thermal conductivity. These characteristics apply to many structural parts and mechanical parts.

                 

                机械性能 Mechanical Properties


                名称
                  Type

                标椎(ASTM)
                  Standard

                合金状态
                  Alloy State

                抗拉强度≥
                  Tensule Strenght

                屈服强度≥
                  Yield Strenght

                延展率≥
                  Elongation

                硬度≤
                  Hardness


                管件
                  Fitting

                A815

                固溶
                  Solid Solution

                800-965

                550

                15

                310


                无缝钢管
                  Seamless Steel Pipe

                A790

                固溶
                  Solid Solution

                800

                550

                15

                310


                有缝钢管
                  Welded Steel Pipe

                A790

                固溶
                  Solid Solution

                800

                550

                15

                310


                板材
                  Plate

                A240

                固溶
                  Solid Solution

                795

                550

                15

                310


                棒材
                  Bar

                A182

                固溶
                  Solid Solution

                800

                550

                15

                310


                锻件
                  Forging

                A182

                固溶
                  Solid Solution

                800

                550

                15

                310

                 

                化学成分 Chemical Composition


                名称
                  Type

                标椎(ASTM)
                  Standard

                Ni

                Cu

                Mo

                Mn

                C

                Si

                S

                Cr

                P

                N


                管件
                  Fitting

                A815

                6.0-8.0

                0.5

                3.0-5.0

                1.20

                0.030

                0.08

                0.020

                24.0-26.0

                0.035

                0.24-0.32


                无缝钢管
                  Seamless Steel Pipe

                A790

                6.0-8.0

                0.5

                3.0-5.0

                1.20

                0.030

                0.08

                0.020

                24.0-26.0

                0.035

                0.24-0.32


                有缝钢管
                  Welded Steel Pipe

                A790

                6.0-8.0

                0.5

                3.0-5.0

                1.20

                0.030

                0.08

                0.020

                24.0-26.0

                0.035

                0.24-0.32


                板材
                  Plate

                A240

                6.0-8.0

                0.5

                3.0-5.0

                1.20

                0.030

                0.08

                0.020

                24.0-26.0

                0.035

                0.24-0.32


                棒材
                  Bar

                A182

                6.0-8.0

                0.5

                3.0-5.0

                1.20

                0.030

                0.08

                0.020

                24.0-26.0

                0.035

                0.24-0.32


                锻件
                  Forging

                A182

                6.0-8.0

                0.5

                3.0-5.0

                1.20

                0.030

                0.08

                0.020

                24.0-26.0

                0.035

                0.24-0.32

                 


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