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