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DUPLEX WASHER

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We are leader duplex 2205 S32205 1.4462 F51 fasteners supplier from China!
Our stud bolt standard is DIN975,DIN976,DIN939,IFI 131
Our goods used in cooling tower widely!
Our Duplex22057 bolt and nut are used in India power plant  on 2017!
Our Duplex2507 bolt and nut are used in Oman power plant  on 2019!
Our Duplex2205 bolt and nut are used in Bangladesh power plant  on 2020!
Our Duplex2507 bolt and nut are used in ISRAEL power plant cooling tower system on 2020!
Our Super duplex F55 fasteners are used in Oman Power plant on 2010&2016&2024!
Our Super duplex fasteners are used in Mexico Power plant's cooling tower on 2024!
  • DIN125A

  • HT&FST

  • 1.4462DIN125AM16

Size:
Availability:
Quantity:

Name

Duplex washer

Standard

DIN125A/DIN9021/DIN434,ISO7089/ISO7093,ASME B 18.22.1

Size Range

M5-M100 or non-standard as requested

Finish

Bright&Clean

Marking

HT&FST or customization

Material

Duplex 2205 & Super duplex 2507 & S32760

Grade

Grade HV200

Certificates

EN10204-3.1B

Non-standards

OEM is available, according to drawing or samples

Samples

Samples available

Package

Bulk in box and then in cartons, then on pallets,

or according to customers' requirement.

Payment

T/T,Western Union




Duplex 2205

UNS

ID

JIS

W.Nr

S31803 F51 SUS32953L 1.4462


Chemical composition of duplex 2205

Alloy % Ni Cr Fe Mo N C Mn Si S
P
Duplex 2205 Min. 4.5
21 margin 2.5 0.08




Min. 6.5 23 3.5 0.2 0.03 2 1 0.02 0.03


Minimum mechanical properties of duplex 2205 alloy at room temperature

Tensile strength Rm N/mm2 Yield strength RP0.2 N/mm2 Elongation rate A5% Brinell hardness HB
620 450 25 290


Super Duplex 2507


UNS

ID

AISI/ASTM

W.Nr

S32750 F53 2507 1.4410



Chemical composition of Super Duplex 2507


Alloy % Ni Cr Mo N C Mn Si S P Cu
2507
Min. 6.0 24 3.0 0.24 0.08




Min. 8.0 26 5.0 0.32 0.03 1.2 0.08 0.02 0.035 0.5



Minimum mechanical properties of alloy for Super Duplex 2507 at room temperature


Tensile strength Rm N/mm2 Yield strength RP0.2 N/mm2 Elongation rate A5% Brinell hardness HB
800 550 15 310



Super Duplex S32760

UNS

ID

W.Nr

S32760 F55 1.4501



Chemical composition of Super Duplex S32760

Alloy % Ni Cr Mo N
C Mn Si S P Cu W
F55
Min. 6.0 24 3.0 0.2






Min. 8.0 26 4.0 0.3 0.03 1.0 1.0 0.01 0.03 1.0 1.0



Minimum mechanical properties of Super Duplex S32760 alloy at room temperature

Tensile strength Rm N/mm2 Yield strength RP0.2 N/mm2 Elongation rate A5%
820 550 25

HOT PRODUCTS

Size Range:
Diameter M5 - M64 ; 1/4"- 2 1/2" 
Length:10-1000mm ; 1/2"-40"
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0
Size Range:
Diameter M5 - M64 ; 1/4"- 2 1/2" 
Length:10-1000mm ; 1/2"-40"
0
0
Size Range:
Diameter M5 - M64 ; 1/4"- 2 1/2" 
Length:10-1000mm ; 1/2"-40"
0
0
Size Range:
Diameter M5 - M64 ; 1/4"- 2 1/2" 
Length:10-1000mm ; 1/2"-40"
0
0
A comprehensive manufacturer of fasteners and machined parts, specializing in nickel alloy fasteners, pipeline valve fittings, and woodworking auger bits.

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Tel: +86-181-2171-9007
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