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Homepage>>>Products>>>Globe Valve>>>Duplex stainless steel globe valve - Alloy Steel globe valve

DUPLEX STAINLESS STEEL | SPECIAL ALLOY GLOBE VALVES


Size Range: DN15 - DN600 / 1/2" - 24"
Design Standards: MSS-SP80 / BS5154/BS1873 /ASME B16.34
Pressure Ratings: Class 150LB, Class 300LB,CLASS600LB Class900,class1500, PN10~PN250
End Connections: Flanged ASME B16.5, EN1092-1 (Flat Face FF or Raised Face flange (RF) , RING TYPE JOINT FLANGE(RTJ))
Face to Face: ASME B16.10 ,ASME B16.47 , EN558-1
Globe valve Type Through way type , Y type Globe valve, and Angle Type globe valve, OS&Y, Rising Stem .
DISC Plug type disc, regulating disc(throttling disc) ,regular disc,
Seat Integral Seat , Optional Extras Renewable Seats 2"/ DN50 and above
Operated type :Hand wheel , Gear Operated, Pneumatic Operated, Electric Operated, Impact Hand wheel Operated
Pressure Testing: API 598 or BS EN 12266-1:2003,DIN3230
Optional Extras: Locking Devices
Open and Close Indicator
Bare stem with ISO5210 top mounting pad for actuator etc.

Stainless Steel Globe valves :
A351 CF8(F304),CF8M(F316),CF3(F304L),CF3M(F316L),CF8C(F347),F321,F321H,CK20

Alloy Steel Globe valves :
Monel 400, monel k500, alloy20,904L,CN7M, Inconel, Hastelloy® B&C

Duplex Stainless Steel Globe valves:
A351 CN7M(B473), CD4MCu(F50),CK3MCuN(F44),CG8M,A890-1A,4A,5A,6A, A182 F44,F50,F51,F53,F310

Bronze Globe valves , Nickel aluminum bronze(NAB) Globe valves , Gunmeta Globe valves:
B148 C95500,C95800,C95400,B62, C83600,B61,B62 C92200, B150 C63200

DIN Stainless Stee Globe valves: 1.4408, 1.4308

alloy-globe-valve-Duplex-stainless-steel-globe-valvealloy-globe-valve-Duplex-stainless-steel-globe-valve

alloy-globe-valve-Duplex-stainless-steel-globe-valvealloy-globe-valve-Duplex-stainless-steel-globe-valvealloy-globe-valve-Duplex-stainless-steel-globe-valve


Duplex stainless steel globe valve - Alloy Steel globe valves manufacturer & supplier: SEDELON VALVE CO.,LTD.

Nickel Alloy / Monel®Globe valve

Monels® are a Nickel alloy material with addition of:

  • Copper (Cu)
  • Silicon (Si)
  • Manganese
  • These materials are also known as Monel, Alloy 400 and Alloy K500

    Common Material Specifications

    Ni Cu30 Fe3.5 Si1.5(+) (Monel 400)
  • A494 M-35-1 (UNS N24135) (Low Si –weldable)
  • A494 M-35-2 (UNS N04020)
  • BS3071: NA1
  • BS3071: NA3
  • OTHERS

  • Wrought equivalent Alloy 400 (UNS N04400)
  • Typical Properties

  • Tensile 430 N/mm2
  • Yield 170-205 N/mm2
  • Elongation 20-25%
  • Hardness HB 100-150
  • Density 8.8 g/cm3
  • Pressure temperature rating: B16.34 Group 3.4 15.9 bar class 150
  • Corrosion Properties

  • Good general corrosion for seawater service
  • Especially good for higher flow rates
  • Excellent trim material for NAB, gains cathodic protection with many alloys.
  • Not recommended for low velocities
  • Additional Uses & Comments

  • Variety of wrought/ bar specifications available, good for trim material. Excellent strength from K500
  • Used for oxygen service
  • Reasonable castabilty with suitable design and higher Si content
  • Weldable with lower Si content
  • Excellent for hydrofluoric & other acids (not nitric)
  • Cautions

  • Ease of manufacture: trade-off between castability and weldability
  • Pitting can be a problem at low velocities
  • Don’t use as trim for austenitic stainless
  • P/T rating class 300=600 psi CWP
  • Cost effectiveness need consideration


  • Alloy 20 / 904L GLOBE VALVES

    Alloy 20 & 904L are special Stainless (Austenitic) :

        Al20
    904L
    Chrome
    (Cr) 20%
    20%
    Nickel (Ni) 25%
    29%
    Molybdenum (Mo) 2% 4.5%
    Copper
    (Cu) 
    3% 1.5%
    Columbium
    (Cb) trace
    -
    (=Niobium,Nb)      

    These materials are also known as:

  • Alloy 20:UNS N08020, CN7M (N08007), URANUS B6M similar
  • 904L: UNS N08904, URANUS B6
  • Typical Properties

  • Tensile 425 min N/mm2
  • Yield 170 min N/mm2
  • Elongation 35%
  • Hardness
  • Density   
  • Corrosion Properties

  • Good for seawater service
  • Especially good for:
  • General corrosion
  • Erosion /corrosion
  • Stress corrosion cracking
  • Corrosion fatigue
  • Occasional pitting will occur
  • Poor fouling resistance
  • Additional Uses & Comments

  • Good for sulphuric acid + wide range of acids
  • Extra conditions re: NACE MR0175 (AOD must be used, restrictions on chemical analysis) 22HRC max
  • Insulate from Copper piping


  • Duplex Stainless Steel GLOBE VALVES

    Duplex Stainless Steels are;

    Duplex (Austenitic-Ferritic) or 22% Chrome St/St, also with

  • Nickel (Ni) 5%
  • Molybdenum (Mo) 3%
  • Sometimes Copper (Cu) 1%
  • Fe Cr22 Ni5 Mo3

  • UNS J92205
  • Also known as:

  • UNS S31803, SAF2205, Alloy 2205, DIN 1.4462
  • 4A (ASTM 891)
  • Typical Properties

  • Tensile 620 min N/mm2
  • Yield 415 min N/mm2
  • Elongation 20%
  • Hardness 185 HB typ
  • Density 7.8 g/cm3
  • P/T ratings, typically B16.34 group 2.8 =20 bar class 150 (UNS S32570)
  • Corrosion Properties

  • Good for seawater service
  • Especially good for:
  • General corrosion
  • Erosion /corrosion
  • Stress corrosion cracking
  • Corrosion fatigue
  •  



    Super Duplex Stainless Steels GLOBE VALVES

    Super Duplex Stainless Steels are improved Duplex (Austenitic-Ferritic) St/St, typically:

  • Chrome (Cr) 25%
  • Nickel (Ni) 7%
  • Molybdenum (Mo) 3%
  • Sometimes Copper (Cu) 1% or Tungsten (W) 1%
  • Also known as:

  • Zeron 100 (UNS 32760), SAF 2507 UNS S32570, UNS J93380 (Cast Zeron
  • Other similar materials

  • UNS S32550 (Ferralium 255)
  • Cr26 Ni5 Mo3.5 Cu2 N
  • CD-4MCu
  • Cr25.5 Ni5.5 Mo2 Cu3 N
  • Several under brand names
  • Typical Properties

  • Tensile 700 min N/mm2
  • Yield 450 min N/mm2
  • Elongation 25%
  • Hardness 180-200 HB typ
  • Density 7.8 g/cm3
  • Corrosion Properties

  • Good for seawater service
  • Especially good for:
  • General corrosion
  • Erosion /corrosion
  • Chloride and Sulphide Stress corrosion cracking
  • NACE <HRC34
  • Corrosion fatigue
  • Poor fouling resistance
  • Additional Uses & Comments

  • Very high strength
  • Good high temperature rating but limited to 400 oC
  • P/T class 300=750 psi CWP


  • Inconel® /Incoloy® GLOBE VALVES

    Inconel® are Nickel-Chrome-Iron Alloy’s and Incoloy® are Nickel-Crome-Molybdenum Alloy’s,

    Nickel alloy:
      825
    625
    Iron (Fe) 31%
    5%
    Chrome (Cr)
    20%
    21%
    Nickel
    (Ni)
    42%
    62%
    Molybdenum (Mo) 2%
    9%
    Copper (Cu) 2% 1.5%
    Columbium+Ta (Cb)
    trace
    3.7%

    These alloys are also known as:

  • Incoloy® 825: UNS N08825, similar to CU5MCuC
  • Inconel® 625: UNS N06625,CW-6M, CW-6MC, UNS N26625
  • Typical Properties

  • Tensile 520 495 min N/mm2
  • Yield 240 275 min N/mm2
  • Elongation 20% 25%
  • Density 8.1 -8.4 g/cm3
  • P/T rating sim. to B16.34 group 3.8 20 bar class 150
  • Corrosion Properties

  • 825 Good
  • 625 Outstanding
  • Corrosion fatigue, crevice corrosion
  • Both poor re:fouling
  • Additional Uses & Comments

  • Alloy 825
  • specially resistant to sulphuric and phosphoric acids
  • Alloy 625
  • good strength without relying on heat treatment
  • particularly good crevice corrosion resistance
  • outstanding combination of corrosion fatigue and crevice corrosion resistance
  • NACE MR01-75 35 HRC max acceptable
  • Haynes comment “generally superseded by the more capable Hastelloy® grades”
  •  



    Hastelloy® B&C GLOBE VALVES

    Hastelloy® B is a Nickel-molybdenum alloy and Hastelloy® C is a Nickel-chrome-molybdenum alloy.

  • Haynes Stellite alloys
  • Collection of Nickel alloys
  • B: B-2, B-3
  • C: C-22, C-276, C-2000
  • D,G,N,W & X
  • Cast grades
  • B2= N-7M (UNS N30007) sim. to N10665
  • C22=CX-2MW (UNS N26022) sim. To N06022
  • Material Specifications

  • B2= N-7M (UNS N30007)    
  • Ni69% (bal), Mo 28%, Fe2%,Cr1%
  • C22=CX2MW (UNS N26022)
  • Ni56%(bal), Cr22%,Mo13%,Fe3%,Nb3%
  • Typical Properties

      B2 C22
    Tensile
    525 550 min N/mm2
    Yield 275
    240 min N/mm2
    Elongation 20%
    30%
    Density
    8.1 8.7 g/cm3
    P/T rating Similar to B16.34 group 3.7 or 3.8 (20 bar for class 150)    

    Corrosion Properties

  • B2    Good
  • C22    Outstanding
  • Corrosion fatigue, crevice corrosion
  • Both poor re:fouling
  • Additional Uses & Comments

  • Resistant to a wide range of acids, often at high temperatures
    Not generally known for seawater use
    Acceptable to NACE
  • Page keywords: duplex stainless steel GLOBE VALE,stainless GLOBE VALVE,alloy globe valves,Monel Globe valve,Alloy 20/904L GLOBE VALVES,Duplex Stainless Steel GLOBE VALVES,Inconel GLOBE VALVES,Hastelloy GLOBE VALVES, special alloy globe valves, stainless steel globe valve Manufacturer & supplier

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