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Super Duplex Bolts

We are Manufacturer, Supplier and Exporter of high quality Super Duplex Steel Fasteners in china. We also offer a complete range of Super Duplex Steel Fasteners such as Bolts, Nuts, Washer, Screw, threaded rod and duplex steel screws etc. These are available in various size, shapes, specification & thickness as per the clients requirments. Our range of these fasteners are widely used in rotors, fans, shafts, and press rolls, automobiles etc. We can offer our product as per ASTM, DIN, BS, AISI, JIS or any international standard or as per customer's specifications.

We are Manufacturer, Supplier and Exporter of high quality Super Duplex Steel Fasteners in china. We also offer a complete range of Super Duplex Steel Fasteners such as Bolts, Nuts, Washer, Screw, threaded rod and duplex steel screws etc. These are available in various size, shapes, specification & thickness as per the clients requirments. Our range of these fasteners are widely used in rotors, fans, shafts, and press rolls, automobiles etc. We can offer our product as per ASTM, DIN, BS, AISI, JIS or any international standard or as per customer's specifications.

 

We are well-known suppliers of  Super Duplex Stainless Steel 2507 Fasteners. Super Duplex Steel 2507 Washers is also used in LPG cylinders, corrosion resistant steel, critical structural application steel, boiler quality, automotive, precision tubes and medium/high carbon grades and among others.  Super Duplex Stainless Steel 1.4410 Bolts is inspected on several parameters in order to supply a faultless range.   typically finds application of this Alloy 2507 Fasteners include marine engineering, chemical and hydro-carbon processing, heat exchangers, valves and pumps


Standard Specification For Super Duplex Bolts

Material
Size
     
Length
Specification

Super Duplex Stainless Steel

M02 to M30

3 mm to 200 mm

IS

BS

ASTM


Material:
Duplex Stainless Steel, Super Duplex Stainless Steel.
Standard :

ASTM / ASME F60 / F51/ F61 / F55 / F53

Grade:

UNS S31803, S32205, S32550, S32750, S32760

Type of Fasteners:

Bolts : Bolts stud bolts, hex head bolts, socket hexagon head screw anchor bolts, u-bolts, J bolts, mushroom head square neck bolts, t- head bolts, wing screw, eye bolt, eye bolt, foundation bolts and structural bolts


Washer : Plain washer , plain big & small OD washer , spring lock washer , spring washer heavy duty , tooth washer , star washer , tab washer with one & two tab

Nuts : Hexagon nuts, hexagon coupling nuts, hexagon thin nut, square nut, hexagon castle nuts, self locking nut, hexagon domed cap nuts

Screw : Pan head slotted screws, cheese head slotted screws, countersunk head slotted screws, countersunk raised head slotted screws, pan phillipse head screw, countersunk Phillipse raised head screws, slotted cheese trim head machine screws, socket head allen cap screws, allen countersunk socket head cap screws, socket head shoulder screws, socket head cap screw low head, hexagon socket set screw with flat point, hexagon socket set screws with cone point, hexagon socket set screw with dog point, hexagon socket set screws with dog point, hexagon socket set screws with cup point, imprial socket cap screws.

Other : Threaded rod, as per drawing and customers spec. coating, hot dipped galvanizing, phosphate, Teflon, xylon, zinc, cadmium.


     

    In Form of:

    Hex, Square, Round , Threading as per Gauge Etc.


    Alloy 2507 Bolts Equivalent Grades

    Alloy
    Common Name
    Related Specification


    European
    UNS
    ASTM/ASME
    Alloy 2507
    SAF 2507 ®
    1.4410
    S32750
    F53


    Zeron 100 Bolts Equivalent Grades

    Alloy
    Common Name
    Related Specification


    European
    UNS
    ASTM/ASME
    Zeron 100
    Zeron 100 ®
    1.4501
    S32760
    F55


    Chemical Composition of Super Duplex 2507 Bolts

    Element
    Content (%)
    Chromium, Cr
    24 – 26
    Nickel, Ni
    6 – 8
    Molybdenum, Mo
    3 – 5
    Manganese, Mn
    1.20 max
    Silicon, Si
    0.80 max
    Copper, Cu
    0.50 max
    Nitrogen, N
    0.24 – 0.32
    Phosphorous, P
    0.035 max
    Carbon, C
    0.030 max
    Sulfur, S
    0.020 max
    Iron, Fe
    Balance


    Chemical Composition of Zeron 100 Bolts

    Cr
    Ni
    Mo
    C
    W
    Cu
    24.0-26.0
    6.0-8.0
    3.0-4.0
    0.030 Max
    0.5-1.0
    0.50-1.0
    N
    Mn
    Si
    P
    S
    Fe
    0.2-0.3
    1.00 Max
    1.0 Max
    0.03 Max
    0.01 Max
    Balance


    UNS S32750 Bolts Mechanical Properties

    Grade

    Tensile Strength

    (MPa) min

    Yield Strength

    0.2% Proof (MPa) min

    Elongation

     (% in 50mm)

    Hardness

    ockwell C (HR C)

    UNS-S 32750
    795
    550
    15
    32max


    UNS S32760 Bolts Mechanical Properties

    Grade

    Tensile Strength

    (MPa) min

    Yield Strength

    0.2% Proof (MPa) min

    Elongation 

    (% in 50mm)

    Hardness

    Rockwell C (HR C)

    ZERON-100 (UNS-S32760)
    750
    550
    25


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