Unifit Fastener is one of the well-known manufacturers and distributors of Duplex Steel UNS S31803 & UNS S32205 Washers, where heat treatment after welding is normally not usual. Known for their long lasting life and resistance to wear and tear, these Duplex Steel UNS S31803 Flat Washers are highly acclaimed among the client-base we have gained. The lower carbon content of Duplex Steel UNS S32205 Lock Washers does reduce its high temperature strength. UNS S31803 Duplex Steel Sealing Washers offer oxidation resistance and moderate strength at high temperature.
The following are the specific areas of applications in UNS S32205 Duplex Steel Split Washers: Fans, Trays, Baskets, Rollers, Burner parts, Oven linings, Tube hangers, Retorts linings, Conveyor belts, Refractory supports, Containers for hot concentrated acids, ammonia, and sulfur dioxide. Duplex Steel 2205 Slot Washers is resistant to suffixation and can likewise be utilized as a part of gently carburizing environments. Combined with its low carbon content, Stainless 2205 Machine Washers is also effective at resisting embrittlement.
This makes Alloy 2205 Star Washers the grade of choice for high temperature applications. Duplex Stainless Steel S31803 Wire Spring Washers has good resistance to oxidation at temperatures of up to 1040°C in intermittent service and 1150°C in continuous service. Duplex Stainless Steel S32205 Flat Spring Washers is a Multi-Purpose Austenitic Heat Resistant Stainless Steel with Oxidation Resistance Under Mildly Cyclic Conditions to 2010°F.
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- What Are Duplex Steel UNS S31803 Washers?
- What are Duplex Steel UNS S32205 Washers?
- Duplex Steel S31803 / S32205 Washers Specification
- Send Your Enquiry
- Duplex Steel S31803/S32205 Washers Equivalent Grade
- Types of Duplex Steel ASTM A479 UNS S31803 & UNS S32205 Washer
- Duplex Stainless Steel Washers Chemical Composition
- Ferritic / Austenitic Duplex Steel Washers Mechanical Properties
- Duplex Stainless Steel 2205 Washers Sizes
- 2205 Duplex Steel Washers Weight Chart
- Other Types Of Duplex Steel Washer
- Applications of Duplex Steel UNS S31803 & UNS S32205 Washers
- FAQ’s About Duplex Steel UNS S31803 & UNS S32205 Washers
What Are Duplex Steel UNS S31803 Washers?
Duplex Steel UNS S31803 washers are performance stainless steel fittings that are characterized by high strength, durability and corrosion resistance. These washers are designed to survive under extreme temperatures and under difficult conditions and are commonly found in oil and gas, petrochemical, chemical processing, marine applications, and other applications in industries. They are well-built in design and hence perform well even in the hardest conditions.
Besides the strength, Duplex Steel UNS S31803 washers can be characterized by high chromium and molybdenum content, which contributes to their high wear resistance. They are essential in ensuring that bolts are firmly attached, ensuring tight enclosures among the parts and reducing vibrations in the machines or engines. The washers are also diverse and can be used in building construction projects, automobile repairs, electrical installations, among others. Duplex Steel UNS S31803 nuts and Duplex Steel S32205 washers are related products that give complete solutions for fastening.
UNS S31803 Plain Washers, Duplex Steel S31803 Washers Supplier, Duplex 1.4462 Locking Washer, Duplex S32205 Spring Washers, Duplex Steel UNS S32205 Washers, Duplex Steel Washers Manufacturer in India.
What are Duplex Steel UNS S32205 Washers?
Duplex Steel UNS S32205 washers are designed for situations where durability and corrosion resistance are of essential concern. These washers are superior to conventional carbon steel in their resistance to corrosion and are therefore a good choice in chemical plants, offshore installations, and marine installations where they are exposed to saltwater, which can readily damage conventional metals.
UNS S32205 washers also have excellent corrosion protection with the added benefit of high mechanical strength, which means they do not change shape under heavy loads or impulsive hits. This strength is needed when attaching heavy machinery or engine parts that are subjected to high movement or stress. They are preferred in industries that require resilience as well as accuracy because of their high performance and long life.
Duplex Stainless Steel S32205 Countersunk Washer, 2205 Duplex Fender Washers, Duplex Steel S31803 Square Washers, S31803 Duplex Ogee Washers, Grade S32205 Duplex Star Washers, Duplex Steel 2205 Flat Washer Supplier in Mumbai, India.
Duplex Steel S31803 / S32205 Washers Specification
| Parameter | Details |
|---|---|
| Specifications | ASTM A193 / ASME SA193 DIN, ASTM, BS and all International Standards |
| Length | 3mm to 200mm |
| Size | M02 to M33, Custom Sizes |
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Duplex Steel S31803/S32205 Washers Equivalent Grade
Duplex Steel S31803/S32205 washers match the widely used Duplex 2205 grade, offering excellent strength and corrosion resistance across industrial environments. Their equivalent grades ensure consistent performance and compatibility with global standards.
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| Duplex 2205 | 1.4462 | S31803 / S32205 |
Types of Duplex Steel ASTM A479 UNS S31803 & UNS S32205 Washer
Duplex Steel UNS S31803 Round Washer
Duplex Steel UNS S32205 Square Washer
Duplex Steel UNS S31803 Lock Washer
Duplex Steel UNS S32205 Spherical Washer
Duplex Steel UNS S31803 Tab Washers
Duplex Steel UNS S32205 Fender Washer
Duplex Steel UNS S32205 Ogee Washer
Duplex Steel UNS S31803 Dome Tooth Washer
Duplex Steel UNS S31803 Countersunk Washer
Duplex Stainless Steel Washers Chemical Composition
Duplex Stainless Steel S31803 and S32205 washers feature a balanced blend of chromium, molybdenum, and nickel for high strength and excellent corrosion resistance. Their low carbon and optimized nitrogen levels ensure durability and stability in demanding environments.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
| S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 - 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
Ferritic / Austenitic Duplex Steel Washers Mechanical Properties
| Tensile Strength, ksi | 0.2% Yield Strength, ksi | Elongation, % | Hardness [HRC] |
|---|---|---|---|
| 90 min | 65 min | 25 min | 293 max |
Duplex Stainless Steel 2205 Washers Sizes
Duplex Stainless Steel 2205 washers come in multiple sizes to meet various industrial fastening needs. Their precise dimensions ensure reliable fit, strength, and performance in demanding applications.
| Duplex Stainless Steel 2205 Washers Sizes | ||||
|---|---|---|---|---|
| Sizes | A | B | C | Weight (lbs.) Per 100 Pieces |
| Inside Diameter | Outside Diameter | Thickness | ||
| 1/2 | 9/16 | 13/8 | 0.109 | 4 |
| 5/8 | 11/16 | 13/4 | 0.134 | 8 |
| 3/4 | 13/16 | 2 | 0.148 | 11 |
| 7/8 | 15/16 | 21/4 | 0.165 | 15 |
| 1 | 11/16 | 21/2 | 0.165 | 19 |
| 11/8 | 11/4 | 23/4 | 0.165 | 22 |
| 11/4 | 13/8 | 3 | 0.165 | 26 |
| 13/8 | 11/2 | 31/4 | 0.180 | 33 |
| 11/2 | 15/8 | 31/2 | 0.180 | 38 |
| 15/8 | 13/4 | 33/4 | 0.180 | 43 |
| 13/4 | 17/8 | 4 | 0.180 | 50 |
| 17/8 | 2 | 41/4 | 0.180 | 57 |
| 2 | 21/8 | 41/2 | 0.180 | 63 |
| 21/4 | 23/8 | 43/4 | 0.220 | 83 |
| 21/2 | 25/8 | 5 | 0.238 | 96 |
| 23/4 | 27/8 | 51/4 | 0.259 | 110 |
| 3 | 31/8 | 51/2 | 0.284 | 130 |
2205 Duplex Steel Washers Weight Chart
The Duplex 2205 washer weight chart provides approximate weights for various metric and inch sizes, helping in quick selection and accurate load or material planning.
| APPROX. WEIGHT IN KGS FOR 100 NOS | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| SIZE | PLAIN PUNCHED WASHER IS:2016 |
HEAVY WASHER IS:6610 |
MACHINED WASHER IS:2016 |
SQUARE TAPER WASHERS | SPRING WASHER FLAT SECTION IS:3063-72 | SPRING WASHER SQUARE SECTION IS:6735-72 DIN : 7980 |
Size (Inches) | PLAIN PUNCHED WASHER BS:3410 TABLE 7 |
|||
| MACHINED | HIGH STRENGTH FRICTION GRIP |
||||||||||
| FOR CHANNELS IS:5372-75 |
FOR I-BEAM IS:5374-75 |
TYPE-B (CHANNELS) IS : 6649-85 |
TYPE-C ( I-BEAMS ) IS : 6649-85 |
||||||||
| M-3 | 0.01 | 0.01 | |||||||||
| M-4 | 0.02 | 0.02 | |||||||||
| M-5 | 0.04 | 0.04 | 0.03 | 0.03 | |||||||
| M-6 | 0.11 | 0.11 | 0.08 | 0.04 | 1/4" | 0.21 | |||||
| M-8 | 0.20 | 0.21 | 1.10 | 1.20 | 0.16 | 0.11 | 5/16" | 0.35 | |||
| M-10 | 0.39 | 1.60 | 0.40 | 1.00 | 1.10 | 0.25 | 0.20 | 3/8" | 0.48 | ||
| M-12 | 0.58 | 1.90 | 0.62 | 2.00 | 2.20 | 2.00 | 1.80 | 0.38 | 0.23 | 1/2" | 1.07 |
| M-14 | 0.82 | 0.60 | 0.38 | ||||||||
| M-16 | 1.06 | 2.90 | 1.13 | 3.40 | 3.75 | 9.00 | 8.50 | 0.89 | 0.59 | 5/8" | 1.85 |
| M-18 | 1.27 | 0.97 | 0.66 | ||||||||
| M-20 | 1.64 | 4.40 | 1.72 | 5.80 | 6.70 | 8.50 | 8.00 | 1.52 | 1.23 | 3/4" | 2.91 |
| M-22 | 1.75 | 7.50 | 7.00 | 1.65 | 1.36 | 7/8" | 4.27 | ||||
| M-24 | 3.11 | 6.30 | 3.30 | 13.50 | 16.00 | 6.50 | 6.00 | 2.62 | 1.81 | 1" | 6.13 |
| M-27 | 3.94 | 8.00 | 4.23 | 12.50 | 15.00 | 12.00 | 11.50 | 2.87 | 2.06 | 1.1/8" | 7.69 |
| M-30 | 5.05 | 10.10 | 5.36 | 16.50 | 18.70 | 17.50 | 16.00 | 4.43 | 3.20 | 1.1/4" | 9.90 |
| M-33 | 7.10 | 12.00 | 7.54 | 21.00 | 23.50 | 23.00 | 22.50 | 6.30 | 3.50 | ||
| M-36 | 8.73 | 14.60 | 9.20 | 25.50 | 29.20 | 26.50 | 26.00 | 6.73 | 5.25 | 1.1/2" | 17.24 |
| M-39 | 12.60 | 16.70 | 13.30 | 28.30 | 34.50 | 7.17 | 5.61 | ||||
| M-42 | 17.50 | 20.10 | 18.30 | 11.10 | 8.00 | ||||||
| M-45 | 21.20 | 22.20 | 22.00 | 11.70 | 8.53 | ||||||
| M-48 | 28.40 | 26.00 | 29.40 | 12.30 | 9.00 | 2" | 27.78 | ||||
| M-52 | 31.90 | 33.00 | 18.20 | ||||||||
| M-56 | 47.90 | 19.30 | |||||||||
| M-60 | 51.60 | 20.30 | |||||||||
| M-64 | 55.40 | 21.80 | |||||||||
| M-68 | 57.40 | ||||||||||
| M-72 | 63.40 | 24.00 | |||||||||
Other Types Of Duplex Steel Washer
| Duplex Steel UNS S31803 Washer | Duplex Steel UNS S32205 Washers |
| UNS S31803 flat washer | UNS S32205 punched washer Supplier |
| Duplex Steel UNS S31803 machined washer Exporter | Duplex Steel UNS S32205 round washer |
| Duplex S31803 round washer | 2205 square washer Manufacturer |
| Duplex Steel ASTM A479 spring washer | Duplex 2205 lock washer |
| Duplex Steel UNS S31803 spherical washer Exporter | UNS S32205 Duplex Steel Tab Washers Stockist |
| DIN 1.4462 Duplex Steel Fender Washer Manufacturer | Duplex Steel Customized Washer |
| Duplex Steel UNS S31803 Dock Washer | Duplex Steel UNS S32205 Square Washer Exporter |
| UNS S31803 Hexagonal Washer Supplier | UNS S32205 Split /Lock Washer Distributor |
| Duplex S31803 Hex Washers Supplier | Duplex 2205 Ogee Washer |
| Duplex Steel Tooth Lock Washer | Duplex Steel Countersunk Washer Manufacturer |
| Duplex Steel Dome Tooth Washer | Duplex 2205 Dome Washer |
| Duplex Steel UNS S31803 Spring Washers | Duplex Steel UNS S32205 Plain / Flat Washer |
| Duplex Steel flat washer | Duplex Steel punched washer |
| Duplex Steel UNS S31803 machined washer | Duplex Steel UNS S32205 round washer |
Our Related Products
Applications of Duplex Steel UNS S31803 & UNS S32205 Washers
- Oil & Gas Industry
- Chemical and Petrochemical Plants
- Marine and Offshore Engineering
- Heat Exchangers, Pumps & Pressure Vessels
- Desalination & Water Treatment Systems
- Construction and Heavy Engineering
- Paper & Pulp Industry
- Automotive and Mechanical Equipment
FAQ’s About Duplex Steel UNS S31803 & UNS S32205 Washers
What are Duplex Stainless Steel washers?
Duplex stainless steel washers are fasteners made from a dual-phase microstructure combining ferritic and austenitic stainless steel. This gives them high strength, excellent corrosion resistance, and reliable performance in harsh environments.
Where are Duplex Steel 2205 washers commonly used?
These washers are widely used in oil & gas, chemical plants, marine applications, desalination plants, heat exchangers, structural engineering, and heavy machinery.
What is the difference between S31803 and S32205 washers?
Both are Duplex 2205 grades, but S32205 has a slightly optimized chemical balance that enhances corrosion resistance, especially in high-chloride environments.