Ninthore Overseas is one of the Leading Manufacturer And Exporter of Alloy Steel B6 Washers, which has some excellent features to offer such as Easy installation, Low maintenance, Rust resistance and more. Carbide – forming elements in Alloy Steel B6 Flat Washers raise the eutectoid temperature, where these elements are known as ferrite stabilizing elements. Alloy Steel B6 Lock Washers is manufactured in conformity with predefined quality standards utilizing high grade material & cutting – edge technology. We offer the customization of Alloy Steel B6 Sealing Washers as per the specifications provided by our clients.

The manufacturing process of Alloy Steel B6 Split Washers includes the formation of mother tube with the help of premium quality of steel. We are engaged in trading of Alloy Steel B6 Slot Washers which are widely used in water distribution systems, heat exchangers, cooling towers, chilled water machines, fuel oil systems and non – flammable medical gas systems. Adhering to the international quality standards, our offered range of Alloy Steel B6 Machine Washers is stringently checked by our quality controllers on various parameters.

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As pressure vessel grade steel for use in elevated temperature accommodation, Alloy Steel B6 Star Washers is utilized in a variety of industries and is highly efficacious, particularly in the oil, gas and petrochemical industry, where liquids and gases are often stored at higher temperatures. Moreover, we offer Alloy Steel B6 Spring Washers to our valued clients at low rates.

Alloy Steel B6 Washers Specifications
Specifications : ASTM A 193 ASME SA 193
Standard : IS, ASTM, BS and all International Standards
Length : 3 mm to 200 mm
Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes
Type : Flat Washer, Lock Washer, Sealing Washer, Split Washer, Slot Washer, Machine Washer, Star Washer SPRINGS – Wire Spring & Flat Spring.

B6 Alloy Steel Washers Chemical Composition

Alloy Steel B6 C Mn Si P S Co Cr
0.15 max 1.00 max 1.00 max 0.040 0.030 11.50-13.50

Alloy Steel B6 Washer Physical Properties:

Temperature (°C) Modulus of elasticity (GPa) Mean co-eff. of thermal expansion Thermal conductivity (W/m·°C) Specific thermal capacity (J/kg·°C) Specific electrical resistivity (Ω mm²/m) Density (kg/dm³) Poisson’s coefficient, ν
31 0.44
525 957 42.3 411
951 21 21.2 444 444

Mechanical Properties:

Rp0.2 (MPa)
Rm (MPa)
KV/Ku (J)
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
666 (≥) 997 (≥) 42 14 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 121

Alloy Steel B6 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

B6 Alloy Steel Washers Test Certificates

We at Ninthore Overseas 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 Ninthore Overseas 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


• 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)