Specialist in Manufacturing Industrial Steel Fasteners

S31803 Duplex Stainless Steel Fasteners

ASTM F51 Duplex S31803 Fasteners, High Tensile Fasteners, Custom Grade & Size Available At Best Price & Free Sample

Vision Alloys are the leading manufacturer of high integrity Duplex S31803 Fasteners (e.g. bolts, set screws, stud-bolts, nuts and washers), meeting clients’ exacting demands for critical applications in hostile environments. Whether for offshore (buoyancy and petrochemical), seawater, pump, valve or nuclear, the demands for an exceptional service and supply is never ending. We believe manufacturing bolting in exotic materials is an art form and it is something we have perfected at Vision Alloys.

Our Duplex S31803 Fasteners product range includes Duplex S31803 Steel Bolts, Hexagon head bolt, Hexagon head screw, Round head square neck bolt, Hexagon socket head cap screw in full thread and half thread, Hexagon wood screw, Hexagon socket button head screw, Hexagon socket button flange screw, Hexagon socket counter sunk head cap screw in full thread and half thread, square nuts, square weld nuts, hexagon weld nuts, thick nyloc nuts, hexagon flange nuts, threaded rods, dowel screws, Plain / Flat Washer, Spring Washers, Countersunk Washer,Tooth Lock Washer and many more. We provide products as per DIN, ANSI, JIS standards.

Vision Alloys produces Duplex S31803 Fasteners in all grades of duplex, to customer specification.ALLOY 31803 is a chromium nickel molybdenum austenitic and ferritic grade. It has improved resistance to stress corossion cracking, piiting, crevice corrossion and high strengths in comparison to other stainless steel grades. It has very good oxidation resiatnce at high temperatures. However, it is prone to embrittlement at 475 Degree celcious if exposed for more than 2 hours. It is widely used in brewing , power generating equipments and wide varierty of marine and oil and gas applicants. If we do not have your Duplex S31803 Fasteners in stock (Inch or Metric) we can have these manufactured to your specification.

Duplex S31803 Fasteners Specification :

Material
Size
Length
Specification

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.

Grade Designation :

Alloy
Common Name
Related Specifications
 
 
European
UNS
ASTM/ASME
31803
31803
1.4462
S31803
F51

Duplex S31803 Fasteners Composition :

Chemical Composition
Typical compositional ranges for grade Duplex S31803 Fasteners

C Mn Si P S Cr Mo Ni N
2205
(S31803)
0.03
max
2.0
max
1.0
max
0.03
max
0.02
max
min: 21.0
max: 23.0
min: 2.5
max: 3.5
min: 4.5
max: 6.5
min: 0.08
max: 0.20

Mechanical Properties
Typical mechanical properties for grade Duplex S31803 Fasteners

Yeild strength
Tensile strength
Elongation
Reduction
Hardness
Mpa
Mpa
%
%
BHN
min
min
min
min
450
620
25
50
297

Physical Properties
Typical physical properties for annealed grade Duplex S31803 Fasteners

Density
Elastic Modulus
Mean Coefficient of Thermal
Thermal Conductivity
Specific Heat
Electrical Resistivity
(Kg/m3)
(Gpa)
Expansion(?m/m/°C)
(W/m.K)
0-100°C
(µ?.m)
7810
190
11 X10-6
15
400
0.85

Duplex S31803 Fasteners Surface Coatings :

  • Hot Dipped Galvanizing
  • Epoxy Coating
  • Electro Polished
  • Passivation
  • Zinc Plating
  • Chrome Plating
  • Mirror Buffed
  • Teflon Coating
  • Oxidized
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