Sachiya Steel International is one of the Leading Manufacturer And Exporter Of High Quality Alloy 20 Washers, which is the higher carbon version of the alloy. Alloy 20 Flat Washers has slightly improved corrosion resistance over stainless steel in strongly oxidizing environments. Alloy 20 Lock Washers is also advantageous for high temperature service because of its good mechanical properties. Alloy 20 Sealing Washers offers higher creep and stress rupture properties than Alloy 304 and, particularly might also be considered for exposures where sensitization and intergranular corrosion are concerns.

Alloy 20 Washers

                Alloy 20 Washers

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Alloy 20 Split Washers is a columbium (niobium) / tantalum stabilized austenitic chromium – nickel stainless steel which was developed to provide an 18 / 8 type alloy with improved inter – granular – corrosion resistance. Alloy 20 Slot Washers has a slightly improved corrosion resistance over other alloys of stainless steel in strongly oxidizing environments as a result of the addition of columbium (niobium) and tantalum. Alloy 20 Machine Washers was developed for enhanced creep resistance and for higher strength at temperatures above 1000 Degree F (537 Degree C).

In most instances, the carbon content of Alloy 20 Star Washers enables dual certification. Alloy 20 Wire Spring Washers does not perform well in chloride solutions, even in small concentrations, or in sulphuric acid. The slightly higher price point of Alloy 20 Flat Spring Washers is well worth it in areas with high chloride exposure, especially the coast and heavily salted roadways.

Alloy 20 Washers Specifications

Specifications : ASTM B 366 ASME SB 366
Standard : IS, ASTM, BS and all International Standards
Length : 3 mm to 200 mm
Size : M02 to M33
Type : Flat Washer, Lock Washer, Sealing Washer, Split Washer, Slot Washer, Machine Washer, Star Washer

Alloy 20 Washers Chemical Composition

Alloy 20 Ni C Mo Mn Si Fe Cu S P Cr
32 – 38 0.02 max 2 – 3 1 – 2 0.7 max Bal 3 – 4 0.005 max 0.02 max 19 – 21

Alloy 20 Washer Mechanical Properties

Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
8.1 g/cm3 1443 °C (2430 °F) Psi – 35000 , MPa – 241 Psi – 80000 , MPa – 551 30 %

Equivalent Grades for 20 Alloy Washers

STANDARD UNS WERKSTOFF NR. AFNOR EN JIS BS GOST
Alloy 20 N08020 2.4660 Z2NCUD31-20AZ NiCr20CuMo

Alloy 20 Washers Application Industries

  • Off-Shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals
  • Pharmaceuticals
  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers
  • Pulp and Paper Industry

20 Alloy Washer Test Certificates

We at Sachiya Steel International provide Manufacturer TC (Test Certificate) in accordance to EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report. We also provide Standard certificates like EN 10204 3.1 and additional requirement like. NACE MR 01075. FERRIT CONTENT as per norms if requested by clients.

• EN 10204/3.1B,
• Raw Materials Certificate
• 100% Radiography Test Report
• Third Party Inspection Report, etc

Material Testing

We at Sachiya Steel International ensure that all our materials go through strict quality tests before dispatching them to our clients.

• Mechanical Testing Such as Tensile of Area
• Hardness Test
• Chemical Analysis – Spectro Analysis
• Positive Material Identification – PMI Testing
• Flattening Test
• Micro and Macro Test
• Pitting Resistance Test
• Flaring Test
• Intergranular Corrosion (IGC) Test

Documentation

• Commercial Invoice which includes HS Code
• Packing List including net weight and gross weight, number of boxes, Marks and Numbers
• Certificate of Origin legalized/attested by Chamber of Commerce or Embassy
• Fumigation Certificates
• Raw Material Test Reports
• Material Traceability Records
• Quality Assurance Plan (QAP)
• Heat Treatment Charts
• Test Certificates certifying NACE MR0103, NACE MR0175
• Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
• Guarantee Letter
• NABL approved Laboratory Test Reports
• Welding Procedure Specification/Procedure Qualification Record, WPS/PQR
• Form A for the purposes of the Generalized System of Preferences (GSP)

Alloy 20 Washers
Alloy 20 Washers

Sachiya Steel International is one of the Leading Manufacturer And Exporter Of High Quality Alloy 20 Washers, which is the higher carbon version of the alloy. Alloy 20 Flat Washers has slightly improved corrosion resistance over stainless steel in strongly oxidizing environments. Alloy 20 Lock Washers is also advantageous for high temperature service because of its good mechanical properties.

Product Brand: Sachiya Steel International

Product In-Stock: InStock

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